NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-23 T16:59:27 PDT
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Notes for object IC 2402

7 note(s) found in NED.


1. 2005ApJ...618..635G
Re:IC 2402
0844+31 (IC 2402) (Fig. 3)
This is a symmetric narrow-line FR II radio galaxy. At parsec
resolution a bright core and two-sided jets are visible. The
symmetric parsec-scale structure and the absence of a visible
broad-line region suggest that this source is at a large angle with
respect to the line of sight. However, the core radio power is
comparable to the total radio power, suggesting a moderate angle to
the line of sight. The image from the VLA FIRST Survey (Becker et al.
1995) shows two extended FR I lobes at a larger distance from the
core beyond the FR II-type hot spot, indicating a prior phase of
radio activity. This source could be classified as a restarted
source, i.e., a source in which the extended FR I structure is
related to previous activity, whereas the inner FR II structure
originates from more recent core activity. This scenario explains the
apparent contradiction of a core-dominated source with a symmetric
parsec-scale jet, since the present core radio power is not expected
to cor relate with the total source radio power: the present core
dominance and the powerful parsec-scale structure could be related to
a recent commencement of a third phase of increased activity.
Multiepoch observations could detect possible growth of the inner
jets, allowing a more detailed study of this interesting source.

2. 1998A&AS..128..153M
Re:GB2 0844+319
IC 2402 galaxy

3. 1993AJ....105.1710G
Re:IC 2402
0844+31 (4C +31.32)
This galaxy is one of the most powerful radio galaxies of the sample
and presents a FR II morphology with two lobes located at ~90 kpc from
the core. Our CCD data reveal an elliptical galaxy with no isophotal
distortions and with a brightness profile following the r^1/4^ law. A
smooth isophote twisting of ~30^deg^ from the nucleus to the external
parts is present. The galaxy belongs to a Zwicky cluster and Morganti et
al. (1988) report an unresolved x-ray source associated with the radio
galaxy.

4. 1993A&AS...99..407C
Re:B2 0844+31B
0844+31
The map shown here is obtained using the new C configuration data; these
low resolution data makes the extended structure visible.

5. 1977A&AS...29..279F
Re:B2 0844+31B
0844+31 See Grueff and Vigotti (1974) for a 6 cm map. A 1415 MHz map has
been obtained at Westerbork by Miley (private communication).

6. 1974ApJ...193..505S
Re:4C +31.32
4C +31.32
The primary identification of 4C +31.32 according to Olsen is the 13.5-mag
E galaxy NGC 2402, which appears 3" E and 34" S of the radio position.
Recent accurate measurements of the position of the radio source are
reported by Grueff and Vigotti (1972) and Ghigo and Owen (1973). Grueff
and Vigotti also suggest the galaxy as the identification. Its spectrum
shows the K and H lines and the G-band in absorption, at a redshift
z = 0.0669. The data in table 1 refer to the blue stellar object
(V = 18.87 on 1974 January 25) indicated by Olsen at 33" W and 51" N of
the galaxy. The wavelength of the weak emission line at 3989 A suggests
that it is O VI {lambda}1406 rather than Si IV {lambda}1397. There is
probably absorption in the violet wing of L{alpha} at 3431 A.

7. 1970AJ.....75..764O
Re:4C +31.32
The primary identification is the *13.5-mag E galaxy, NGC 2402,
which appears 3''east and 34''south of the radio position. An
18-mag blue stellar object appears 30''west and 17''north of the radio
position


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