C.D.S. - SIMBAD4 rel 1.7 - 2019.10.23CEST05:56:38

2015A&A...583L...2S - Astronomy and Astrophysics, volume 583, L2-2 (2015/11-1)

The long X-ray tail in Zwicky 8338.


Abstract (from CDS):

The interaction processes in galaxy clusters between the hot ionized gas (ICM) and the member galaxies are of crucial importance to understand the dynamics in galaxy clusters, the chemical enrichment processes, and the validity of their hydrostatic mass estimates. Recently, several X-ray tails associated with gas that was partly stripped of galaxies have been discovered. We report on the X-ray tail in the 3keV galaxy cluster Zwicky 8338, which might be the longest galaxy-scale stripping process ever observed. We derive the properties of the galaxy cluster environment and give hints on the substructure present in this X-ray tail, which is very likely associated with the galaxy CGCG254-021. The X-ray tail is extraordinarily luminous (2x1042erg/s), the thermal emission has a temperature of 0.8keV, and the X-ray luminous gas might be stripped off completely from the galaxy. From assumptions about the 3D geometry, we estimate the gas mass fraction (<0.1%) and conclude that the gas has been compressed and/or heated.

Abstract Copyright:

Journal keyword(s): galaxies: clusters: individual: Zwicky 8338 - galaxies: clusters: intracluster medium - X-rays: galaxies: clusters

Simbad objects: 4

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Number of rows : 4

N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
1 LEDA 2357685 G 18 10 25.7 +49 55 42           ~ 3 0
2 MCG+08-33-026 GiC 18 10 29.224 +49 55 16.80   15.4       ~ 10 0
3 1RXS J181030.0+495615 X 18 10 30.1 +49 56 15           ~ 2 0
4 ZwCl 1810+4949 ClG 18 11 00.1 +49 54 40     14.8     ~ 45 0

    Equat.    Gal    SGal    Ecl

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