2021ApJ...917L..33H

Query : 2021ApJ...917L..33H

2021ApJ...917L..33H - Astrophys. J., 917, L33-L33 (2021/August-3)

Dark X-ray galaxies in the A1367 galaxy cluster.

HENRIKSEN M.J. and DUSEK S.

Abstract (from CDS):

We have characterized a sample of extended X-ray sources in the A1367 galaxy cluster that lack optical counterparts. The sources are galaxy size and have an average total mass of 1.3 x 1011 solar masses. The average hot gas mass is 3.0 x 109 solar masses and the average X-ray luminosity is 4.3 x 1041 erg cm–2 s–1. Analysis of a composite source spectrum indicates the X-ray emission is thermal, with temperature of 1.25-1.45 keV and has low metallicity, 0.026-0.067 solar. The average hot gas radius (12.7 kpc) is well matched to nominal stripping radius. We argue that this optically dark, X-ray bright galaxy population forms by a sequence of stripping followed by heating and mixing with the intracluster medium.

Abstract Copyright: © 2021. The American Astronomical Society. All rights reserved.

Journal keyword(s): Galaxy evolution

CDS comments: DXG10 was not found in the 3XMM catalog.

Simbad objects: 23

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Number of rows : 23
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 MCG+00-07-077 EmG 02 40 23.09 +01 13 45.3   16.1   15.6 16.0 ~ 67 0
2 M 82 AGN 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 6156 6
3 NAME Hydra I Cluster ClG 10 36 36.0 -27 31 04           ~ 905 1
4 3XMM J114257.3+195934 X 11 42 57.341 +19 59 34.30           ~ 1 0
5 3XMM J114258.5+194432 X 11 42 58.518 +19 44 32.24           ~ 1 0
6 3XMM J114309.8+194254 X 11 43 09.843 +19 42 54.01           ~ 1 0
7 3XMM J114311.5+200032 X 11 43 11.529 +20 00 32.96           ~ 1 0
8 3XMM J114330.1+200340 X 11 43 30.132 +20 03 40.23           ~ 1 0
9 3XMM J114335.3+200013 X 11 43 35.384 +20 00 13.83           ~ 1 0
10 3XMM J114339.6+200014 X 11 43 39.634 +20 00 14.89           ~ 1 0
11 3XMM J114343.0+195912 X 11 43 43.053 +19 59 12.80           ~ 1 0
12 3XMM J114348.0+195822 X 11 43 48.002 +19 58 22.67           ~ 1 0
13 Z 97-87 GiC 11 43 49.1088652488 +19 58 05.954438316 13.96 14.35 13.59 13.29   ~ 237 3
14 3XMM J114413.1+195917 X 11 44 13.147 +19 59 17.17           ~ 1 0
15 3XMM J114440.8+195038 X 11 44 40.807 +19 50 38.12           ~ 1 0
16 3XMM J114444.0+194213 X 11 44 44.032 +19 42 13.54           ~ 1 0
17 ACO 1367 ClG 11 44 44.6 +19 41 59           ~ 1127 1
18 3XMM J114457.9+194018 X 11 44 57.990 +19 40 18.95           ~ 1 0
19 3XMM J114504.7+194040 X 11 45 04.702 +19 40 40.42           ~ 1 0
20 3XMM J114506.2+193609 X 11 45 06.274 +19 36 09.30           ~ 1 0
21 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
22 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
23 SMDG J1300580+265835 LSB 13 00 57.996 +26 58 34.72     19.37 18.43   ~ 145 0

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