2000A&A...353..487T

Query : 2000A&A...353..487T

2000A&A...353..487T - Astronomy and Astrophysics, volume 353487-497 (2000/1-2)

Peculiar properties of 2 unusually X-ray bright early type galaxies.

TRINCHIERI G. and PIETSCH W.

Abstract (from CDS):

Two X-ray bright early type galaxies, selected for their unusually high X-ray to optical flux ratio, have been observed at high spatial resolution with the ROSAT HRI. Both sources are clearly extended (>250kpc in radius), thus excluding a nuclear origin of the high X-ray emission. A small group of galaxies observed around IC 1262 could be the most natural explanation for the high X-ray luminosity observed. NGC 6159 could be similarly explained, although there are to date no spectroscopic confirmations of a group of galaxies associated with it. The X-ray properties of these two sources are discussed in the context of the properties of groups of galaxies. A peculiar very bright feature, in the shape of an arc, is detected at the center of the IC 1262 image. This could be the signature of a recent merger, or of peculiar high velocities in the group.

Abstract Copyright: ∼

Journal keyword(s): galaxies: individual: IC 1262 - galaxies: individual: NGC 6159 - X-rays: galaxies

Simbad objects: 22

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Number of rows : 22
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 BAX 043.2159-01.2747 ClG 02 52 49.4 -01 16 27           ~ 104 0
2 NGC 1132 EmG 02 52 51.82 -01 16 29.0   13.9   12.16   ~ 180 0
3 M 86 GiG 12 26 11.814 +12 56 45.49 10.32 9.83 8.90   7.50 ~ 1126 1
4 M 49 Sy2 12 29 46.8 +08 00 01   13.21 12.17     ~ 2174 2
5 NGC 5044 BiC 13 15 23.9607836592 -16 23 07.547751744   11.9   10.74   ~ 531 0
6 SDSS J162659.42+424450.0 QSO 16 26 59.424 +42 44 50.09           ~ 2 0
7 RX J162711.3+424111 X 16 27 11.3 +42 41 12           ~ 1 0
8 TOI-2016 Em* 16 27 11.4049429704 +42 41 14.899324164   12.06 11.16     K1 8 0
9 USNO-A1.0 1275-09048889 * 16 27 11.54 +42 41 11.5           ~ 1 0
10 RX J162713.8+424142 X 16 27 13.8 +42 41 43           ~ 1 0
11 NGC 6159 Sy2 16 27 25.2376803504 +42 40 47.003214396   15.2       ~ 50 0
12 RX J162736.4+424455 X 16 27 36.4 +42 44 55           ~ 1 0
13 RX J173222.2+433949 X 17 32 22.1889631176 +43 39 49.792276548           ~ 1 0
14 RX J173258.7+434613 X 17 32 58.7 +43 46 14           ~ 2 0
15 IC 1262 rG 17 33 02.0176600056 +43 45 34.803150516   14.9       ~ 79 0
16 USNO-A1.0 1275-09539788 * 17 33 33.3613746288 +43 47 49.848074880           ~ 1 0
17 USNO-A1.0 1275-09539872 * 17 33 33.83 +43 47 57.1           ~ 1 0
18 RX J173334.0+434757 X 17 33 34.0 +43 47 57           ~ 1 0
19 NGC 7318B GiP 22 35 58.3903354632 +33 57 57.827617524   14.06   12.47   ~ 144 0
20 NGC 7319 Sy2 22 36 03.602 +33 58 33.18   14.57 13.53 12.65   ~ 325 0
21 NGC 7619 GiG 23 20 14.524 +08 12 22.63   12.7       ~ 472 0
22 USNO-A1.0 1275-90488889 * ~ ~           ~ 1 0

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