4. REMARKS ON INDIVIDUAL WR GALAXIES

Below a brief comment is given for each object from Table 1 on the detected WR features and possible nebular HeII 4686. In some objects the strongest nebular lines also show broad and/or asymmetric components, attributed to gaz-flows or broad stellar emission. These finding are also reported below.

NGC 53 -- Detection of HeII 4686 by Masegosa et al. (1991) from automatic search in HII galaxy catalogue of Terlevich et al. (1991).

NGC 55 -- Rosa & D'odorico (1986) surveyed eight giant HII regions in NGC 55. Two were found with broad HeII 4686 CIV 5808 features.

UM 48 -- Automatic detection by Masegosa et al. (1991). WR features unlikely according to the analysis of Pindao et al. (1999).

Mrk 960 -- Broad features around 4700 Å were first suspected by S. Considère (private communication). A better spectrum of this galaxy confirms the presence of a broad HeII 4686 emission line (Kovo & Contini 1998).

NGC 300 -- Fifteen positions were observed by D'Odorico et al. (1983) in this Sculptor group galaxy often considered as a twin of M 33. Two regions showed HeII 4686 one also CIV 5808. Several investigations were undertaken subsequently to search for individual WR stars or small clusters. The latest work (Breysacher et al. 1997, cf. references therein) detected 12 WR stars increasing the total to 34 known WR stars.

IRAS 01003-2238 -- Broad HeII 4686 and NIII 4640 emission has been observed by Armus et al. (1988). Other broad features are tentatively detected. Based on the equivalent withs of the WR-bump they estimate ~ 10⁵ WR stars are present in this luminous infrared galaxy, the most distant WR galaxy known so far.

UM 311 -- This HII region is possibly located in the galaxy NGC 450. Automatic detection of broad HeII 4686 by Masegosa et al. (1991). The high S/N spectrum of Izotov & Thuan (1998) shows both broad HeII 4686 and CIV 5808 features, but no nebular HeII. A nebular component is also detected by Guseva et al. (1998). Pindao (1998) confirms the presence of a broad WR bump.

Tol 0121-376 -- Masegosa et al. (1991) and Pindao (1998) signal the presence of a broad WR bump in this galaxy.

Minkowski's Object -- A weak broad HeII 4686 feature and possible nebular HeII has been found by Breugel et al. (1985) in this "starburst triggered by a radio jet". They also point out a close similarity of the emission line spectrum with the NGC 7714, a prototypical starburst galaxy.

Mrk 996 -- This unusual blue compact galaxy shows HeII 4686, NIII 4640 and CIV 5808 features in the HST FOS spectra of Thuan et al. (1996).

Mrk 589 -- Guseva et al. (1998) point out the presence of broad HeII 4686 and several N lines in the blue bump, as well as broad CIV 5808. The S/N in the red appears quite low for its detection.

UM 420 -- Broad HeII 4686 emission has been found by Izotov & Thuan (1998). From their reanalysis Guseva et al. (1998) signal also nebular HeII and broad CIV 5808. The S/N appears fairly low for the latter assertion.

Mrk 1039 -- The presence of nebular and broad HeII 4686 and CIV 5808 has been discovered by Huang et al. (1998) in this HII galaxy.

Tol 0226-390 -- Masegosa et al. (1991) and Pindao (1998) signal the presence of a broad WR bump in this galaxy.

Tol 0242-387 -- Masegosa et al. (1991) and Pindao (1998) signal the presence of a broad WR bump in this galaxy.

Mrk 598 -- Pindao (1998) signals the presence of a broad WR bump in the western knot of this galaxy.

NGC 1140 -- A broad WR bump and CIV 5808 are detected by Guseva et al. (1998).

NGC 1156 -- Emission features of WR stars and a high-excitation HII region in the nucleus are signaled by Ho et al. (1995) from their magnitude limited survey of nuclei of nearby galaxies. A close resemblance of the spectrum with NGC 4214 is pointed out. They also signal a broad H component.

NGC 1313 -- WR features are found in two regions at large galactocentric radii of this Transition Magellanic galaxy (Walsh & Roy 1997). For region # 28 both HeII 4686 and CIV 5808 are found. No detailed information is provided about region # 3. Pindao et al. (1999) also signal the possible detection of broad HeII 4686; exact position unknown.

NGC 1365 -- The detection of broad CIII 5696 and CIV 5808 (marginally) in this giant extragalactic HII region was made by Phillips & Conti (1992).

SBS 0335-052 -- The first detection of nebular HeII 4686 in this very low metallicity object was reported by Izotov et al. (1990). Nebular and broad HeII 4686 have been found in the reanalysis of Izotov et al. (1998); no broad features had been signaled by Izotov et al. (1997c).

NGC 1510 -- Eichendorf & Nieto (1984) show the presence of broad HeII 4686 in one component of this amophous galaxy. See the discussion in Conti (1991) for more details.

NGC 1569 -- Narrow-band 4686 filter imaging of Drissen et al. (1993) revealed the possible presence of WR stars. Spectroscopy by Drissen & Roy (1994) in the outskirts of the galaxy shows broad HeI 6678 both attributed to a late WN star. According to Gonzaléz-Delgado et al. (1997) this region is located 4" west of super star cluster (SSC) A. Ho et al. (1995) find the WR bump and a broad H component "in the nuclear spectrum". Gonzaléz-Delgado et al. (1997) find several broad features in the WR bump which are confined to SSC A. Broad HeII 4686 has also been detected by Martin & Kennicutt (1997).

NGC 1614 -- A broad WR bump is detected by Pindao (1998). The measurement of Vacca & Conti (1992) provides an upper limit on broad HeII 4686.

VII Zw 19 -- Found by Kunth & Joubert (1985) in their "survey" of 45 blue emission line galaxies for showing excess emission between 4600 and 4711 Å.

NGC 1741 -- This well studied galaxy is part of the Hickson (1982) "compact" group # 31 and interacting with H31 (see below). Several broad components in the WR bump (HeII 4686, NIII 4640) and nebular emission of [FeIII] 4658 and HeII 4686 have been identified by Kunth & Schild (1986). According to Conti (1991) NIII 4640 cannot be confirmed. The spectrum of Vacca & Conti (1992) of region B is shown in Conti et al. (1996) who obtained also a UV spectrum with GHRS on HST of this region. An upper limit on HeII 4686 is also given by Vacca & Conti (1992) for region A. The high S/N spectrum of Izotov & Thuan (1998) shows broad HeII 4686, whereas the CIV 5808 is absent. No nebular HeII component is present according to the reanalysis of Guseva et al. (1998).

H31A -- A broad HeII 4686 feature and was pointed out by Rubin et al. (1990) in galaxy A and possibly also in H31C = NGC 1741 (see above).

Mrk 1094 -- Kunth & Joubert (1985) list this object as having a broad HeII 4686 excess above 0.8 of the background. Broad HeII 4686 was detected by Vacca & Conti (1992) in region A. Upper limits on HeII are given for two other regions.

II Zw 40 -- Broad HeII 4686 was detected by Kunth & Sargent (1981) in this well studied low metallicity galaxy. See also Vacca & Conti (1992) for more recent observations and a study of its WR content. Broad HeII 4686 and possibly also CIV 5808 are signaled by Martin (1997). An important contamination by nebular HeII 4686 has been suspected by Schaerer (1996) from its similarity with Pox 4 and on theoretical grounds. A broad asymmetric emission components of H has been found by Méndez & Esteban (1997). Guseva et al. (1998) find the presence of both stellar and nebular HeII and broad CIV 5808.

Tol 0633-415 -- Automatic detection by Masegosa et al. (1991). Pindao et al. (1999) classify this as a suspected WR galaxy.

Mrk 5 -- The high S/N spectrum of Izotov & Thuan (1998) shows broad HeII 4686. No nebular HeII component is present according to the reanalysis of Guseva et al. (1998).

IRAS 07164+5301 -- Huang et al. (1996) detect the presence of broad lines around 4686 Å suggesting NIII 4640, CIII 4650, and HeII 4686 in this IRAS source. They also indicate a tentative detection of OV 5835 and a lack of CIV 5808. The spectrum is of fairly low S/N.

Mrk 1199 -- Izotov & Thuan (1998) signal nebular and broad HeII 4686 and CIV 5808 features from their high S/N spectrum ². The latter features appears quite weakly. No nebular HeII component is present according to the reanalysis of Guseva et al. (1998).

NGC 2363 -- This is a well studied giant HII region consisting of two main knots and located south west of the irregular galaxy NGC 2366 (e.g. Drissen et al. 1993, Gonzaléz-Delgado et al. 1994, and references therein). Spectra of the region taken up to 1992 all show narrow HeII 4686 (see references in Drissen et al. 1993). From narrow-band imaging Drissen et al. (1993) find excess HeII 4686 emission in both knots, but much stronger in the fainter eastern knot. They argue for WR stars in this knot (B). Spectroscopy by Gonzaléz-Delgado et al. (1994) confirms the presence broad and nebular HeII 4686 in knot B, and detect also CIV 5808 attributed to WC stars. Izotov et al. (1997a) find broad and nebular HeII 4686 emission in knot A, and nebular HeII in knot B (cf. also the reanalysis by Guseva et al. (1998)). Broad emission component of H, H, and [OIII] are also known (Roy et al. 1992, Izotov et al. 1997a).

Mrk 8 -- Kunth & Joubert (1985) list this object as having a broad HeII 4686 excess above 0.8 of the background.

NGC 2403 -- Drissen & Roy (1996) detect broad HeII 4686 and CIV 5808 in two giant HII regions in this galaxy of the M81 group.

VII Zw 187 -- Kunth & Joubert (1985) list this object as having a broad HeII 4686 excess above 0.8 of the background.

SBS 0749+582 -- Broad and nebular HeII 4686 is signaled by Izotov et al. (1997a).

Mrk 1210 -- Storchi-Bergmann et al. (1998) detect the presence of a broad HeII 4686 component attributed to WR stars in the nucleus of this Seyfert 2 galaxy. A broad WR bump is also detected by Pindao (1998).

IRAS 08208+2816 -- The presence of nebular and broad HeII 4686 and broad CIV 5808 was found by Huang et al. (1998) in this luminous infrared galaxy. The WR bump luminosity is exceptionally large and rivals that of IRAS 01003-2238. Interestingly the authors also find essentially zero internal reddening derived from the Balmer decrement.

He 2-10 -- This dwarf emission galaxy can be considered the "prototypical WR galaxy" since it was the first where HeII 4686 emission attributed to WR stars was detected (Allen et al. 1976). Abundant observational data is available for this galaxy. The detection of Allen et al. has been confirmed by Hutsemekers & Surdey (1984), who also suspected CIV 5808 emission due to WC stars from their spectrum. Broad HeII 4686 and a weak CIV 5808 feature were detected by Vacca & Conti (1992) in their region A. Both features were confirmed by Schaerer et al. (1999) from their high S/N spectra. An upper limit for HeII 4686 in region B is also given in Vacca & Conti (1992). The HST UV images of Conti & Vacca (1994) resolve this galaxy in multiple knots. Broad asymmetric emission components of H and [NII] 6584 have been found by Méndez & Esteban (1997).

Mrk 702 -- An incorrect object name (C 0842+163) was used for this galaxy by Masegosa et al. (1991), who report a broad WR feature. Guseva et al. (1998) detect both broad HeII 4686 and CIV 5808 features. The S/N appears fairly low for the latter assertion.

SBS 0907+543 -- Broad and nebular HeII 4686 has been found by Izotov et al. (1997a).

SBS 0926+606 -- Broad and nebular HeII 4686 has been found by Izotov et al. (1997a) (cf. also Guseva et al. (1998)). They also indicate the presence of low intensity broad components of H and/or [OIII] 5007.

I Zw 18 -- This well-known object is the galaxy with the lowest metal content known. While nebular HeII 4686 was observed for a long time, only recently the deep spectra of Izotov et al. (1997b) and Legrand et al. (1997) revealed several broad emission components (CIII 4650, HeII 4686, CIV 5808) attributed to WN and WC stars. The spatial distribution of HeII 4686 emission was studied by Hunter & Thronson (1995) and De Mello et al. (1998) based on WFPC2 HST observations. Izotov et al. (1997a) indicate the presence of low intensity broad components of H and/or [OIII] 5007.

ESO 566-7 -- An incorrect object name C 0942-1929A was used by Masegosa et al. (1991) for this galaxy, where they report a broad WR feature. Pindao (1998) confirms the presence of the WR bump.

NGC 3003 -- A complex broad WR-bump was signaled by Ho et al. (1995), who also note the absence of a broad H component in contrast to their spectra of other WR galaxies (cf. NGC 1156, NGC 1569, NGC 4214).

Mrk 22 -- Broad and nebular HeII 4686 has been found by Izotov et al. (1994). Their spectrum appears noisy to detect CIV 5808. Its detection is, however, signaled by Guseva et al. (1998).

Mrk 1236 -- Kunth & Schild (1986) point out the presence of broad HeII 4686 in this galaxy. Broad HeII 4686 was detected in region A by Vacca & Conti (1992). Observations of Guseva et al. (1998) signal the presence of nebular and broad HeII, broad CIV 5808 and possibly also CIII 5696. A broad emission feature is identified as CII 4267.

SBS 0948+532 -- Broad and nebular HeII 4686 has been found by Izotov et al. (1994). Also CIV 5808 is present according to the reanalysis of Guseva et al. (1998), although the S/N appears fairly low.

NGC 3049 -- This Virgo Cluster galaxy shows broad [NII] 5755 and HeII 4686 (Kunth & Schild 1986). The WR bump is confirmed by Mas-Hesse & Kunth (1991, 1998), Masegosa et al. (1991), and Pindao (1998). Broad HeII 4686 was detected in region A by Vacca & Conti (1992); an upper limit is given for region B. The high S/N observations of Schaerer et al. (1999) reveal broad features of NIII 4640, HeII 4686, CIII 5696, and CIV 5808 testifying of the presence of late-type WN and late-type WC stars. These features are confirmed by Guseva et al. (1998).

Mrk 712 -- Contini et al. (1995) and Contini (1996) signal the presence of broad NIII 4640 and HeII 4686 in a giant HII region of this IRAS barred spiral galaxy. A nebular contribution to HeII may be present (Contini 1996).

Tol 0957-278 -- Kunth & Joubert (1985) list this object (=Tol 2) as having a broad HeII 4686 excess above 0.8 of the background in the NE component. Upper limits of HeII 4686 are given for 2 regions by Vacca & Conti (1992). Possible detection of broad HeII 4686 according to Pindao et al. (1999).

NGC 3125 -- Broad HeII 4686 emission was found by Kunth & Sargent (1981; cf. also Kunth & Joubert 1985) in this dwarf galaxy. They also note narrow [FeIII] 4658 emission. Broad HeII 4686 was detected in two regions by Masegosa et al. (1991) and Vacca & Conti (1992). Pindao (1998) reconfirms the detections of Masegosa et al. The high S/N observations of Schaerer et al. (1999) reveal broad features of NIII 4640, HeII 4686, and CIV 5808 in both regions, testifying of the presence of late WN and early WC stars.

Tol 1025-284 -- Pindao (1998) signals the presence of a broad WR bump in this galaxy.

Mrk 33 -- Kunth & Joubert (1985) list this object as having a broad HeII 4686 excess above 0.8 of the background. The WR bump is confirmed by the spectra of Mas-Hesse & Kunth (1991, 1998).

Mrk 178 -- The SE knot of this galaxy shows broad HeII 4686 according to González-Riestra et al. (1984). HeII emission was already noted by Sargent (1972). Guseva et al. (1998) signal the presence of nebular and broad HeII, and CIV 5808.

Mrk 1434 -- Broad and nebular HeII 4686 has been found by Izotov et al. (1997a). They also indicate the presence of low intensity broad components of H and/or [OIII] 5007. The reanalysis of Guseva et al. (1998) also shows CIV 5808 emission.

Mrk 1259 -- Ohyama et al. (1997) detect broad NIII 4640 and HeII 4686 lines in the nuclear spectrum of this nearby starburst galaxy. Their study suggests the existence of a superwind seen nearly pole-on (see also Ohyama & Taniguchi 1998). Guseva et al. (1998) signal also the presence of CIV 5808 and no nebular HeII. A broad feature identified as NIII 4510 is also indicated.

Mrk 724 -- Kunth & Schild (1984) find broad HeII 4686 and a broad feature close to CIV 5808, as well as additional nebular lines "contaminating" the WR bump ([FeIII] 4658, HeII 4686, [ArIV] 4711). The identification of CIV 5808 is not well established (see Kunth & Schild, 1984; Conti, 1991).

NGC 3353 -- Steel et al. (1996) report the presence of a broad WR bump and a possible detection of CIV 5808 in region A. These signatures are confirmed by Huang et al. (1998) who also find indications for nebular HeII 4686.

NGC 3367 -- The presence of a broad WR bump in the LINER nucleus has been signaled by Ho et al. (1995), who also note unusually broad and asymmetric emission lines (e.g. H).

NGC 3395 -- Weistrop et al. (1998) signal the presence of broad HeII 4686 and CIV 5808.

NGC 3396 -- Weistrop et al. (1998) signal the presence of broad HeII 4686 and CIV 5808, as well as nebular HeII 4686.

Mrk 1271 -- The spectrum of Izotov & Thuan (1998) shows weak nebular and broad HeII 4686 features. Although very weak, CIV 5808 could also be present according to Guseva et al. (1998). Contini (1996) only finds nebular emission lines.

SBS 1054+365 -- Broad HeII 4686 has been detected by Izotov et al. (1997a). This is confirmed by the reanalysis of Guseva et al. (1998).

Mrk 36 -- The spectrum of Izotov & Thuan (1998) shows nebular and broad HeII 4686 features. No WR signature was detected by Campbell et al. (1986) and Mas-Hesse & Kunth (1991, 1998).

NGC 3690 -- Ho et al. (1995) signaled the presence of WR features in several regions of this galaxy (=Arp 299); they exclude WR features in the nucleus. Vacca (1996, private communication) signals the presence of broad HeII 4686 in Arp 299B and Arp 299C which are part of this complex system.

NGC 3738 -- Martin (1997) points out the presence of broad HeII 4686.

UM 439 -- Automatic detection by Masegosa et al. (1991). Also listed as WR candidate by Pindao et al. (1999).

Mrk 182 -- Broad HeII 4686 is pointed out by Guseva et al. (1998). The spectrum may be too noisy to establish the presence/absence of a nebular component.

Mrk 1450 -- Nebular and broad HeII 4686, and CIV 5808 have been found by Izotov et al. (1994) (cf. also Guseva et al. (1998)).

Mrk 1304 -- Automatic detection of HeII by Masegosa et al. (1991), later confirmed by Pindao (1998). Nebular and broad HeII 4686, and CIV 5808 have been found by Guseva et al. (1998). The S/N appears fairly low for the latter assertion.

Mrk 1305 -- Broad HeII 4686 and CIV 5808 have been found by Guseva et al. (1998). The S/N appears fairly low for the latter assertion.

Mrk 750 -- HeII 4686 emission was first signaled by Kunth & Joubert (1985). According to Conti (1991) NIII 4640 is also detected in a spectrum of Salzer. These detections are consistent with the spectrum of Izotov & Thuan (1998) showing a broad WR bump and nebular HeII. The reanalysis of Guseva et al. (1998) also reveals CIV 5808 emission.

Pox 4 -- Kunth & Joubert (1985) list this object as having a broad HeII 4686 excess above 0.8 of the background. This object is also included in the studies of Campbell et al. (1986) and Masegosa et al. (1991) ³, which signal a possible WR feature in one or two regions. The reanalysis of Pindao (1998) confirms the WR bump in one region. Broad HeII 4686 has been measured by Vacca & Conti (1992) in two regions. The existence of a broad component is not well established (e.g. Kunth & Sargent, 1981). Nebular HeII 4686 is most likely present in region A (see spectrum of Vacca & Conti 1992). A broad asymmetric emission component of [OIII] 5007 has been found by Méndez & Esteban (1997).

UM 461 -- Conti (1991) reports the presence of broad HeII 4686 and relatively strong nebular [ArIV] lines in a spectrum from Salzer.

Mrk 1307 -- Izotov & Thuan (1998) indicate the presence of broad HeII 4686 and nebular HeII (cf. Guseva et al. 1998). The presence of a broad component appears somewhat marginal (see also Contini 1996).

Mrk 193 -- The analysis of Guseva et al. (1998) indicates the presence of broad and nebular HeII 4686 in this object; the broad component was not signaled by Izotov et al. (1994).

ISZ 59 -- Kunth & Joubert (1985) list this object as having a broad HeII 4686 excess above 0.8 of the background.

NGC 3995 -- Weistrop et al. (1998) signal the presence of broad HeII 4686 and CIV 5808, as well as nebular HeII 4686.

NGC 4038 -- From ten giant HII regions surveyed by Rosa & D'Odorico (1986) in this galaxy of the Antennae, one exhibits a broad emission feature at the blue WR bump.

SBS 1211+540 -- The reanalysis of Guseva et al. (1998) shows nebular and broad HeII 4686; Izotov et al. (1994) only signaled nebular emission.

NGC 4214 -- WR signatures in this galaxy were found independently by Mas-Hesse & Kunth (1991; cf. also 1998) and Sargent & Fillippenko (1991). The observations of the former show a broad WR bump around 4650 Å and CIV 5808 due to WC stars. The latter detect WR signatures of NIII 4640, CIII 4650, possibly also CIII 4658, and HeII 4686 in two knots. From the C lines they also suspected the presence of WC stars. Broad HeII 4686 and CIV 5808 in several regions has also been signaled by Martin & Kennicutt (1997). A broad H component, attributed to WN stars, was also detected by Sargent & Fillippenko in one knot. Recent UV spectroscopy of NGC 4214 with HST was obtained by Leitherer et al. (1996). Detailed spectroscopic spatial mapping by Maíz-Apellániz et al. (1998) shows the presence of HeII 4686 (broad and narrow) in several regions of NGC 4214.

NGC 4216 -- From five giant HII regions surveyed by Rosa & D'Odorico (1986) in this galaxy two exhibit a broad emission feature at the blue WR bump.

NGC 4236 -- González-Delgado & Perez (1994) report the presence of broad NIII 4640 and HeII 4686 features in their HII region III.

M 106 -- Castellanos et al. (1998) point out the presence of broad HeII 4686 in the brightest HII region of this Seyfert 2 galaxy.

SBS 1222+614 -- Nebular and broad HeII 4686, and CIV 5808 have been found by Izotov et al. (1997a) (cf. Guseva et al. 1998).

NGC 4385 -- WR signatures of NIII 4640, HeII 4686 and possibly also CIV 5808 have been detected by Campbell & Smith (1986). The first two lines are also found in the spectrum of Durret & Tarrab (1988), who signal also a possible detection of CIII 4658. The findings are confirmed by Conti (1991) according to a spectrum of Salzer; according to Conti CIII 4658 has more likely to be identified with [FeIII] 4658.

II Zw 62 -- Kunth & Joubert (1985) list this object as having a broad HeII 4686 excess above 0.8 of the background.

Mrk 209 -- Nebular and broad HeII 4686 have been found by Izotov et al. (1997a); the reanalysis of Guseva et al. (1998) also reveals CIV 5808 emission, although very weak.

NGC 4449 -- Martin & Kennicutt (1997) indicate the presence of broad HeII 4686 and CIV 5808 in several regions of this object.

NGC 4532 -- The presence of a weak broad WR bump has been signaled by Ho et al. (1995), who also note a very weak broad H component.

Mrk 1329 -- Broad HeII 4686 and a possible detection of CIV 5808 are signaled by Guseva et al. (1998). HeII 5412 emission is also pointed out.

Tol 1235-350 -- Pindao (1998) signals the presence of a broad WR bump in this galaxy.

NGC 4670 -- Mas-Hesse & Kunth (1991, 1998) report the presence of a WR bump in this galaxy; the latter publication provides only an upper limit.

Tol 1247-232 -- Automatic detection of broad HeII 4686 by Masegosa et al. (1991) confirmed by the analysis of Pindao (1998).

SBS 1249+493 -- The reanalysis of Guseva et al. (1998) indicates the presence of nebular and broad HeII 4686; previously only a narrow component was detected (Thuan et al. 1995).

NGC 4861 -- The spectrum of Dinerstein & Shields (1986) shows a broad WR feature centered at 4686 Å and a possible detection of CIV 5808 (but cf. Conti 1991). The WR bump is confirmed by Mas-Hesse & Kunth (1991, 1998), Motch et al. (1994) who also find nebular HeII, and by Martin & Kennicutt (1997) who possibly also find CIV 5808. The spectrum of Izotov et al. (1997a) shows broad and nebular HeII, as well as CIV 5808 (cf. Guseva et al. 1998).

Tol 30 -- Broad NIII 4640, HeII 4686, and probably also nebular HeII have been found by Contini (1996). The exact region is not specified. Pindao et al. (1999) signal the possible presence of the WR bump in the HII region Tol 1303-281 NW associated with this galaxy.

Pox 120 -- Kunth & Joubert (1985) list this object as having a broad HeII 4686 excess above 0.8 of the background.

Pox 139 -- Kunth & Joubert (1985) list this object as having a broad HeII 4686 excess above 0.8 of the background. This finding is confirmed by the observations of Vacca & Conti (1992).

NGC 5068 -- From five giant HII regions surveyed by D'Odorico et al. (1983) in this galaxy, two exhibit a broad emission feature at the blue WR bump.

SBS 1319+579 -- Nebular and broad HeII 4686 have been found by Izotov et al. (1997a). In their reanalysis Guseva et al. (1998) also detect CIV 5808.

NGC 5128 -- The observations of six HII regions in the elliptical galaxy Cen A (classified as Seyfert 2 in NED) by Möllenhoff (1981) revealed several WR features in one region (# 13) near the rim of the dust disk of this well studied galaxy. Broad lines of NIII 4640, HeII 4686, CIII 4650, and CIV 5808 are identified. According to Rosa & D'Odorico (1986), WR features are found in two (including # 13) out of six surveyed regions.

Pox 186 -- Kunth & Joubert (1985) list this object as having a broad HeII 4686 excess above 0.8 of the background.

Tol 35 -- Kunth & Joubert (1985) list this object as having a broad HeII 4686 excess above 0.8 of the background. Campbell et al. (1986) indicate only nebular HeII. The WR feature is confirmed by the spectrum of Campbell & Smith (1986), by Masegosa et al. (1991), Vacca & Conti (1992), and Pindao (1998). Broad asymmetric emission components of H and [OIII] 5007 have been found by Méndez & Esteban (1997).

M 83 -- From eight giant HII regions surveyed by Rosa & D'Odorico (1986) in this galaxy, three exhibit a broad emission feature at the blue WR bump.

NGC 5253 -- This is a well studied amorphous galaxy. WR features have not been detected by Rosa & D'Odorico (1986); four regions surveyed. The first reports of a broad WR bump in this galaxy are from Campbell et al. (1986) and Walsh & Roy (1987). The high S/N observations of Schaerer et al. (1997) reveal broad features of NIII 4640, HeII 4686, and CIV 5808 in two regions, testifying of the presence of late-type WN and early-type WC stars. Nebular HeII 4686 is very likely present in their region A; a region of exceptionally strong HeII 4686 (probably nebular) was also found (see Schaerer et al. 1999). The WR bump was also detected by Kobulnicky et al. (1997), Martin & Kennicutt (1997), Mas-Hesse & Kunth (1998) and Pindao (1998).

Mrk 67 -- Conti (1991) reports a possible detection of a weak and broad HeII 4686 emission feature from a spectrum of Salzer.

Mrk 1486 -- Nebular and broad HeII 4686 have been found by Izotov et al. (1997a).

Tol 89 -- Durret et al. (1985) report the detection of a broad WR bump (likely NIII 4640 and HeII 4686) in this giant HII region of NGC 5398. IUE spectra also indicate the presence of WR stars (see Durret et al. 1985, Conti 1991), possibly also of the WC type. Pindao (1998) also signals the presence of the WR bump. The high S/N observations of Schaerer et al. (1999) reveal broad features of NIII 4640, HeII 4686, and exceptionally strong CIV 5808, testifying of the presence of late-type WN and early-type WC stars. These authors also suspect a contribution from nebular HeII 4686.

NGC 5430 -- Keel (1982) reports a broad WR bump (likely NIII 4640 and HeII 4686) in the spectrum of a bright HII region, SE of the nucleus of this barred galaxy.

NGC 5408 -- WR features have not been detected by Rosa & D'Odorico (1986); two regions surveyed. Masegosa et al. (1991) signal a possible detection of broad HeII 4686 in their region B. According to Motch et al. (1994) the HeII emission is only nebular and is mostly found in two regions (their # 3 and 4). Kovo & Contini (1998) report both broad and nebular HeII 4686 in two HII regions of this galaxy with a faint broad NIII 4640 in one of them. The nebular lines of [FeIII] 4658 [ArIV] 4711, and [ArIV] 4740 are strong.

NGC 5457 = M 101 -- Rosa & D'Odorico (1986) report of seven surveyed HII regions with five detections of WR features from the spectra of D'Odorico et al. (1983). According to the latter, however, only two regions, Hodge 40 and NGC 5461 (see below), show clear broad HeII 4686 features; the remaining objects required confirmation with spectra at higher resolution. Although uncertain, broad HeII 4686 emission in Hodge 40 was also pointed out by Rayo et al. (1982).

NGC 5461 -- The presence of broad NIII 4640 and HeII 4686 in this giant HII region of M101 was first pointed out by Rayo et al. (1982) and later confirmed by D'Odorico et al. (1983).

NGC 5471 -- Rayo et al. (1982) find a weak HeII 4686 feature in this HII region of M 101. No information on its width is given. D'Odorico et al. (1983) detect unbroadened lines identified as CIII 4658 [FeIII] 4658, HeII 4686, HeI + [ArIV] 4711 and [ArIV] 4740, whose origin is likely nebular. Mas-Hesse & Kunth (1991, 1998) mention the presence of a WR bump.

SBS 1408+551A -- Nebular and broad HeII 4686, and CIV 5808 have been found by Izotov et al. (1996).

CGCG 219-066 -- Nebular and broad HeII 4686 emission is found according to Izotov et al. (1998); no broad features had been signaled by Thuan et al. (1995).

Mrk 475 -- Conti (1991) reports a detection of a moderately strong HeII 4686 emission feature and possible NIII 4640 from a spectrum of Salzer. The similarity with the spectrum of Mrk 750 is pointed out. Nebular and broad HeII 4686, and CIV 5808 have been found by Izotov et al. (1994) (cf. Guseva et al. 1998). Their spectrum also show the presence of an unidentified broad feature at ~ 4200 Å.

Mrk 477 -- Heckman et al. (1997) detect the presence of a broad HeII 4686 component attributed to WR stars together with several other stellar signatures in the nucleus of this powerful Seyfert 2 galaxy.

Tol 1457-262A -- A broad HeII 4686 emission line has been reported by Contini (1996) in one of the members of the galaxy pair Tol 1457-262. A broad WR bump is also detected by Pindao (1998).

Tol 1457-262B -- Whereas Contini (1996) signals the presence of a purely nebular HeII 4686 emission, a broad WR bump is detected by Pindao (1998).

SBS 1533+574B -- Nebular and broad HeII 4686, and also CIV 5808 have been found in the reanalysis of Guseva et al. (1998); no broad features had been signaled by Izotov et al. (1997a).

IC 4662 -- From two giant HII regions surveyed by Rosa & D'Odorico (1986) in this nearby galaxy, two exhibit a broad emission feature at the blue WR bump. This is also confirmed by the study of Heydari-Malayeri et al. (1990). Richter & Rosa (1991) detect HeII 4686 and CIV 5808 in one cluster. The WR bump was also detected by Mas-Hesse & Kunth (1998).

NGC 6500 -- Broad HeII 4686 may be tentatively detected in the LINER nucleus of this galaxy (Barth et al. 1997).

Fairall 44 -- Broad HeII 4686 CIV 5808 and NIII 4640 emission lines are detected in this dwarf galaxy (Kovo & Contini 1998).

NGC 6764 -- Osterbrock & Cohen (1982) point out the presence of broad NIII 4640 and HeII 4686 in the spectrum of the nucleus of this barred spiral galaxy also classified as LINER or Seyfert 2. Conti (1991) argues that the line at 4660 Å in their spectrum is likely [FeIII] 4658. The spectrum of Eckart et al. (1996) confirms the broad features of Osterbrock & Cohen. They also signal excessive widths of HeI 5876 and H which they attribute to emission from WR stars. Broad CIII 5696 and CIV 5808 lines from WC stars are reported in the nucleus of this galaxy by Kunth & Contini (1998).

Tol 1924-416 -- Pindao (1998) signals the presence of a broad WR bump in this galaxy. Kovo & Contini (1998) indicate only nebular HeII 4686.

IC 4870 -- The presence of a broad WR bump is signalled by Joguet & Kunth (1999) in this galaxy classified as starburst or Seyfert 2. The spectral range at > 5300 Å was not covered.

IC 5154 -- Joguet & Kunth (1999) note the presence of broad HeII 4686, NIII 4640, and CIV 5808 in one of the two nuclei of this galaxy which they classify as starburst although previously known as Seyfert 2.

ESO 108-IG 01 -- The presence of broad HeII 4686 and CIV 5808 is signalled by Joguet & Kunth (1999) in this galaxy classified as starburst or Seyfert 2.

Mrk 309 -- Osterbrock & Cohen (1982) point out the presence of broad NIII 4640 and HeII 4686 in this Seyfert 2 galaxy. Conti (1991) argues that the line at 4660 Å is likely [FeIII] 4658. CIV 5808 and CIII 5696 emission, attributed to WC stars, is also tentatively detected by Osterbrock & Cohen.

Mrk 315 -- Kunth & Joubert (1985) list this object as having a broad HeII 4686 excess above 0.8 of the background.

ESO 148-IG 02 -- WR features (NIII 4640, HeII 4686) in this infrared galaxy have been reported by Johansson & Bergvall (1988).

III Zw 107 -- Kunth & Joubert (1985) list this object as having a broad HeII 4686 excess above 0.8 of the background in the southern component.

Mrk 930 -- Broad HeII 4686 has been found by Guseva et al. (1998). The reanalysis of Guseva et al. (1998) also reveals a nebular HeII component and broad CIV 5808. The quality of the spectrum appears fairly low for the latter assertion.

NGC 7714 -- Van Breugel et al. (1985) reported weak WR features near 4686 Å and possible nebular HeII emission in the nucleus of this "prototypical starburst" galaxy, and call attention to the similarity with Minkowski's object (above) and extragalactic HII regions. New long-slit observations at several position angles were obtained by González-Delgado et al. (1995), confirming the presence of broad HeII 4686 in the nucleus. Nebular emission can also be suspected from their spectrum. From the same observations García-Vargas et al. (1997) find broad WR bumps (~ 4660 Å) in three extra-nuclear giant HII regions. One of them shows a definite detection of CIV 5808; for the remaining regions upper limits on CIV 5808 are given. Pindao (1998) also signals the presence of a broad WR bump; no information about the observed location given.

² The reported nebular HeII 4686 intensity in Izotov & Thuan (1998) is erroneous according to Y. Itozov (1998, private commnication). No indication is therefore given in column 8 of table 1 for this object. Back.

³ Campbell et al. refer to C 1148-203. In Masegosa et al. the name C 1148-2020 (see their Table 1) and erroneously Tol 1148-202 (Table 2) is used. The proper identification of this Cambridge object (see Telles et al. 1997) is IRAS 11485-2018 = Pox 4 according to NED. Back.