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Date and Time of the Query: 2019-06-25 T18:40:13 PDT
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Notes for object NGC 3995

10 note(s) found in NED.


1. 2002MNRAS.329..747T
Re:NGC 3995
4.1 NGC 3994 and 3995 are separated by ~1.8 arcmin and are
interacting with the galaxy NGC 3991 which lies 3.7 arcmin to the
north-west of the pair. The triplet are also known as Arp 313 (Arp
1966). Baldwin, Phillips & Terlevich (1981) classified NGC 3994 as a
LINER. A red continuum map shows that NGC 3994 has a complex structure
with vigourous star formation in the outer ring-like arms and in wisps
extending out of the galaxy (Keel et al. 1985). NGC 3995 also shows
signs of active star formation, with ~20 high-luminosity H II regions
apparent in an H{alpha} map of the galaxy (Keel et al. 1985). Both NGC
3995 and NGC 3994 were only weakly detected at 850 microns. Single-dish
H I observations have measured fluxes ranging from 10.32 to 46.4 Jy km
s^-1^. All of these observations suffered from varying degrees of
confusion with nearby sources, depending on the pointing centre and
size of the beam. We have measured a flux of 11.43 Jy km s^-1^ from NGC
3995, but do not detect any emission from NGC 3994.
4.2 NGC 4418

2. 2002AJ....124..675C
Re:UGC 06944
See the UGC 06936 notes.

3. 1999A&AS..136...35S
Re:NGC 3995
NGC 3995 -- Weistrop et al. (1998) signal the presence of broad
He II {lambda}4686 and C IV {lambda}5808, as well as nebular
He II {lambda}4686.

4. 1994CAG1..B...0000S
Re:NGC 3995
Karachentsev 311 [with NGC 3994; NGC 3991 nearby]
PH-8054-S
Sc(tides)
Feb 4/5, 1981
Arp 313
103aO
12 min
Racine wedge
NGC 3995 is the brightest galaxy of a
multiple interacting group whose next-brightest
members are NGC 3994 (Sbc; it is the closest
galaxy to NGC 3995) and NGC 3991. The
morphology of NGC 3991 is dominated by a thin
tidal plume in which very bright HII-region
candidates are present. Karachentsev lists redshifts
of v_o(3394) = 3086 km/s and v_o(3395) = 3232 km/s.
The redshift listed for NGC 3991 by
Palumbo et al. (1983) is 3256 km/s. From
these three redshift values, the mean redshift
distance of the group is 64 Mpc (H = 50).
The angular separations of NGC 3994 and
NGC 3991 from NGC 3995 are 1.9' and 3.7',
respectively. The corresponding projected linear
separations are 35 kpc and 68 kpc.
The morphology of NGC 3994 (the fainter
of the close pair) is normal for a late-type Sbc or
Sc. There is no evidence of tidal distortion
despite its apparent closeness to NGC 3395.
However, tidal disruption is clearly evident in
NGC 3991, the more distant in projection of the
triplet.
The two main prints of NGC 3395 (the
brightest galaxy of the group) also show evidence
of morphological distortion. It would seem that
the interaction has been between NGC 3995 and
NGC 3991, not involving NGC 3994.

5. 1993ApJS...86....5K
Re:NGC 3995
NGC 3995; Sm, H II.
The membership of this spiral galaxy in a multiple interacting system is
considered the main cause of its enhanced H II region emission spectrum
and very blue continuum in the visible (Kennicutt & Keel 1984). Despite
the less than optimal signal-to-noise ratio, our UV spectrum is in
agreement with the strong H II regions thought to be present in the
galaxy. (The UV spectrum contains emission artifacts at 1280, 1290, and
1663 A). Data in the radio (Hummel et al. 1987b) and in the X-ray
(Fabbiano et al. 1982) also support the above picture. Although NGC 3391,
NGC 3394, and NGC 3395 are all members of the same group, and are
interacting, their response to the interaction must vary, since their
spectra are all very different. Thus we are far from a good understanding
of interaction-induced star formation.

6. 1976RC2...C...0000d
Re:NGC 3995
= Arp 313
= VV 249
= Holm 309a
In multiple interacting system with NGC 3991 and NGC 3994.

7. 1973UGC...C...0000N
Re:UGC 06944
VV 249a, Arp 313b
SAm pec (de Vaucouleurs)
See UGC 06933, UGC 06938
"Linear strings of knots like deformed spiral arms. Strong [OII] emission" (Arp)

8. 1964RC1...C...0000d
Re:NGC 3995
= Holm 309a
Small, bright nucleus off center in cardioid-shaped lens or (r). 3 knotty
irregular, asymmetric arms.
Multiple interacting system with NGC 3991, 3994.
Pair with NGC 3994 at 1.8 arcmin. NGC 3991 at 3.7 arcmin.
Photograph:
Sky & Telescope, 17, 231, 1958.
Spectrum:
P.A.S.P., 69, 386, 1957.
I.A.U. Symp., No. 5, 1958 = Lick Contr. II, No. 82, 1958.

9. 1959VV....C...0000V
Re:VV 249a
= NGC 3395
Yerkes Type: afS5p or afI
According to Morgan (Publ. A.S.P., 70, 363, 1958)
{lambda}3727 is very bright in the main arm of VV 249a.
According to Carpenter (Publ. A.S.P., 69, 386, 1957)
there is no emission in spectrum of core of VV 249a,
and in the `fibers' H{beta} and {lambda}3727.

10. 1956AJ.....61...97H
Re:NGC 3995
HMS Note No. 119
Early-type continuum with strong {lambda} 3727, H{beta}
and {lambda} 3868 [Ne III] in faint emission.
Absorption lines of poor visibility.


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