NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-04-24 T06:30:54 PDT
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Notes for object NGC 4194

11 note(s) found in NED.


1. 2004AJ....127..736H
Re:NGC 4194
A15. NGC 4194 NGC 4194 (Fig. 1o), known as the Medusa, is a merger with
tidal features of peculiar appearance. An H{alpha}+[N II] image is
presented by AHM and shows a single dominant nucleus with several
circumnuclear hot spots embedded in a faint halo of 3 kpc diameter. Our
H{alpha} image reproduces these features, though with coarser spatial
resolution. A close inspection of the H{alpha} image suggests that the
nuclear source has an arclike appearance. This arclike structure is
composed of the brightest nuclear source and two extensions (~3", ~0.6
kpc) to the west and the south. The western extension is reminiscent of
the one seen in the radio continuum map by Condon et al. (1990; see also
Aalto & Huttemeister 2000).

2. 1996A&AS..115..439E
Re:NGC 4194
NGC 4194, the "Medusa" is a classical merger (Keel 1993). It has been observed
in the Br{gamma} infrared recombination line (De Poy 1993). It is found to be
an example of an extreme star burst galaxy with 90% of the IR luminosity
attributed to the star burst component (Prestwich et al. 1994). The CO
luminosity is not particularly high. CO emission is observed out to 15" from
the centre.

3. 1993ApJS...86....5K
Re:NGC 4194
NGC 4194 (Mrk 201); Sm pec, BCG.
This BCG galaxy shows an unusually flat continuum (see Table 5). While
the absorption features of Si IV and C IV (with a possible P Cygni
profile of C IV) show the presence of a hot population of massive O and
early B stars, the very flat spectrum suggests the presence of a cooler
component of A stars. The depth of the Mg II {lambda}2800 feature is
greater than expected from our Galaxy and is probably due in part to
intrinsic absorption in NGC 4194.
NGC 4194 is a BCG(Thuan & Martin 1981), a radio-loud galaxy (Heckman
1983), and a FIRG (Armus, Heckman, & Miley 1989). The activity is
apparently powered by a central burst of star formation that is claimed
to be driven by the merging of two galaxies, as evidenced in part by the
tidal tail (Joseph & Wright 1985).

4. 1993ApJ...412..535W
Re:NGC 4194
NGC 4194.-The 10 micron position agrees with the radio position of
Condon et al. (1990) to within 1.5".

5. 1977A&AS...28....1V
Re:VV 261
Plate 25 Chains/Nests
MCG +09-20-119 = VV 261 = Arp 160 = NGC 4194 = MRK 0201; 13m.
Figs. a and b show structure. Of this "Medusa", the structure of the
"head" is as yet unresolved. In this case, three galaxies apparently
are coalescent. "Behind", the dwarfs begin to seperate. The impression
is that the right hand side is advancing with some resistance, while
the left hand side recalls us of chips lagging behind the motion.
V_0_=+2585 and +2522 from H{beta} and [O III] (Arp 1967); +2684;
+2480 ds2e (Arakelian et al. 1971); Weedman (1973): B=13.79,
B-V=0.49, U-B=-0.25, M_v_=-20.3. The photographs obtained with the 6m
telescope by Korovjakovsky and Shabanov (plate 69) reveal the fantastic
structure of this enigmatic object. Its source (core) consists simply
of two coalescent compact bodies. Its envelopes become more and more
complicated as more fainter parts are recorded on the plate. Its whole
diameter is 25 kpc.

6. 1976RC2...C...0000d
Re:NGC 4194
= MRK 201
= I Zw 33
= Arp 160
= VV 261
Faint plumes and jets to the north.
Photo:
Ap. J., 148, 321, 1967.
Ap. J., 156, 325, 1969.
Photometry (10, 20 microns):
Ap. J. (Letters), 176, L95, 1972.
Bull. A.A.S., 4, 223, 1972.
Spectrum:
Ap. J., 148, 321, 1967.
Ap. J., 156, 325, 1969.
Rotation Curve and Mass Determination:
Ap. J., 156, 325, 1969.
HI 21cm:
Astr. Ap., 22, 281, 1973.
A.J., 79, 671, 1974.

7. 1973UGC...C...0000N
Re:UGC 07241
VV 261, Arp 160, I Zw 33
SB0 pec (de Vaucouleurs)
"Broken ring, large plume" (CGCG)
Chaotic main body with short jet and broad plume northwards
In Arp's class "disturbed galaxies with interior absorption"
"Blue post-eruptive Sa with elliptical patchy compact disk, jets, plumes and
knots" (CGPG)

8. 1971CGPG..C...0000Z
Re:CGPG 1211.6+5448
I Zw 033
NGC 4194
Blue post-eruptive Sa with elliptical patchy compact disc.
Jets, plumes, and knots.
= +2,555 km/sec. (Humason 1956).
m(pg) = 13.0 [CGCG]

9. 1964RC1...C...0000d
Re:NGC 4194
Extremely bright nucleus, asymmetric. Faint outer structure.
Heidelberg Veroff. Vol. 9, 1926 and Lund 9 dimensions are for the bright
part only.
Spectrum:
IAU Symp., No. 5, 1958 = Lick Contr. II, No. 81, 1958.

10. 1959VV....C...0000V
Re:VV 261
= NGC 4194
The galaxy appears more dismembered on the (red) POSS print.

11. 1956AJ.....61...97H
Re:NGC 4194
HMS Note No. 129
This highly concentrated peculiar spiral, observed with three-prism
dispersion, shows a strong, early-type continuum with broad hydrogen
absorption lines beginning with H{delta}
Emission features are:
strong {lambda} 3727, and much weaker 5006 and 4958 [0 III] and
H{beta} and H{gamma}.


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