NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-21 T08:13:39 PDT
Help | Comment | NED Home

Notes for object UGC 11958

12 note(s) found in NED.


1. 2009MNRAS.396.1929H
Re:3C 442A
X-ray data for 3C 442A are as described by Hardcastle et al. (2007b). This
source is known to be variable in the X-ray: we use the X-ray data from the 2005
July 27 observation. As discussed by Hardcastle et al. (2007), intrinsic
absorption may explain the flat photon index we obtain, but for consistency we
use the Galactic value here.

2. 2009ApJ...693.1142S
Re:3C 442A
3C 442A has the most peaky temperature profile in this sample. The sharp
reconstructed temperature peak at 75-150 kpc, and the steepening of the surface
brightness at ~ 120 kpc, may best be explained by the second most luminous radio
source in our sample (only after Abell 2462). From the NVSS image, the two radio
lobes of 3C 442A extend to ~5' (or 152 kpc) in radius. Shock heating by the
radio source may explain the high temperature peak. Because of this high
temperature peak, the total mass density profile is not physically meaningful
within the central ~160 kpc, which casts doubt on the assumption of hydrostatic
equilibrium within the central 160 kpc. Therefore, c_500_ cannot be constrained
reliably.

3. 2008ApJS..177..148F
Re:3C 442
4.1.20. 3C 442; z = 0.026; Only two exposures can be used of the four, due to
telescope pointing errors. The host galaxy is a smooth elliptical, with two
companions visible on the WFPC2 image (Martel et al. 1999). The point source on
the edge of the NICMOS chip to the west-southwest is in line with the radio axis
and is a candidate hotspot-also clearly visible on the WFPC2 images.

4. 1999ApJS..122...81M
Re:3C 442
3C 442. - The isophotes of the outer halo of this elliptical are
relatively smooth but within the central 1" (520 pc), they are irregular
and the light distribution becomes nonuniform. A faint, unresolved
nucleus may be present. The host of 3C 442 is located at the center of a
"chain" of three galaxies. A very large lenticular galaxy and a smaller
elliptical are located 34" (19 kpc) and 38" (21 kpc) to the northwest
and southeast of 3C 442, respectively. The core of the lenticular is
bifurcated by a very sharp dust lane in a northeast to southwest
direction.

5. 1998ApJS..117..319A
Re:[ATZ98] F054
X-ray position coincides with a marginally resolved blue object with
(probably narrow) H{alpha} and [S II] emission. Probably a LINER.

6. 1996ApJ...466..122R
Re:ARP 169
Arp 169.--Both galaxies B and C are typical ellipticals without any signature
of recent star formation in their mean colors (see also Schombert et al. 1990).
The brightness profiles for both systems are pure r^1/4^ (see Fig. 8).

7. 1994A&AS..105..211S
Re:PKS 2212+13
The radio flux and the radio spectral index have been taken from Condon
et al. (1991).

8. 1976RC2...C...0000d
Re:ARP 169
= II Zw 172
= 3C 442
= Kara[72] 564
Interacting pair (NGC 7236 + NGC 7237) at 0.5 arcmin in common halo.
3rd companion 0.6 arcmin south-following.
V=12.98, B-V=1.05, U-B=0.44 (log A=1.13, Source S) for NGC 7236 + NGC 7237.
Classification:
Ap. J., 140, 35, 1964.
Photometry (UBVR):
Ap. J., 178, 25, 1972.
Ap. J., 183, 735, 1973.
Spectrum:
Ap. J., 191, 55, 1974.
Radio Observations:
A.J., 75, 1, 1968.

9. 1973UGC...C...0000N
Re:UGC 11958
Arp 169, II Zw 172
Chain of 3 objects, plumes from a) and b) form diffuse halo
a) 0.25 x 0.25
b) 0.20 x 0.20 at 0.5 south-following a)
c) 0.15 x 0.12 at 0.6 south-following b)
"Faint diffuse plumes coming away from two galaxies. 3C 442" (Arp)
`3 blue compacts, one spherical, 2 patchy in straight row, d = 100"
northwest-southeast... v = 7854' (CGPG)
NGC 7236, S0: (de Vaucouleurs)
NGC 7237, S0: (de Vaucouleurs)
Companion 2.2, 330 from a), 0.20 x 0.15
22 12.1 +13 32 at 5.5, 215, (0.9 x 0.9), 0.12 x 0.12 (core), compact, m=15.7

10. 1971CGPG..C...0000Z
Re:CGPG 2212.3+1335
II Zw 172
NGC 7236 + 7237
Three blue compacts, one spherical,
two patchy in straight row.
d = 100 arcsec [north-west]-[south-east]
= ++7,854 km/sec.
Total m(pg) = 14.3 [CGCG]

11. 1965AJ.....70..384W
Re:3C 442
The identification with the close pair of galaxies NGC 7236-7 is due to Bolton.
NGC 7237 lies at the radio position.

12. 1964ApJ...140...35M
Re:3C 442
No. 49.-D1 + D3 in common envelope. Brightest member of an extended cluster of
richness 0. Redshift by Greenstein (1962).


Back to NED Home