2010A&A...513A...2G


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.14CEST21:48:48

2010A&A...513A...2G - Astronomy and Astrophysics, volume 513, A2-2 (2010/4-1)

X-ray spectral study of hot gas in three clusters of galaxies.

GRANGE Y.G., COSTANTINI E., DE PLAA J., IN'T ZAND J.J.M., VERBUNT F., KAASTRA J.S. and VERRECCHIA F.

Abstract (from CDS):

We studied the physical properties of three clusters of galaxies, selected from a BeppoSAX Wide Field Camera survey. These sources are identified as 1RXS J153934.7-833535, 1RXS J160147.6-754507, and 1RXS J081232.3-571423 in the ROSAT All-Sky Survey catalogue. We obtained XMM follow-up observations for these three clusters. We fitted single and multi-temperature models to spectra obtained with the EPIC-pn camera to determine the temperature, the chemical composition of the gas and their radial distribution. Since two observations were contaminated by a high soft-proton background, we developed a new method to estimate the effect of this background on the data. We present the temperature and iron abundance of two of these three clusters for the first time. The iron abundance of 1RXS J153934.7-833535 decreases with radius. The fits to the XMM and Chandra data show that the radial temperature profile within 3' towards the centre either flattens or lowers. A Chandra image of the source suggests the presence of X-ray cavities. The gas properties in 1RXS J160147.6-754507 are consistent with a flat radial distribution of iron and temperature within 2' from the centre. 1RXS J081232.3-571423 is a relatively cool cluster with a temperature of about 3keV. The radial temperature and iron profiles suggest that 1RXS J153934.7-833535 is a cool core cluster. The Chandra image shows substructure which points toward Active galactic Nuclei feedback in the core. The flat radial profiles of the temperature and iron abundance in 1RXS J160147.6-754507 are similar to the profiles of non-cool-core clusters.

Abstract Copyright:

Journal keyword(s): X-rays: galaxies: clusters - galaxies: clusters: individual: 1RXS J081232.3-571423 - galaxies: clusters: individual: 1RXS J153934.7-833535 - galaxies: abundances - galaxies: clusters: intracluster medium - galaxies: clusters: individual: 1RXS J160147.6-754507

Simbad objects: 8

goto Full paper

goto View the reference in ADS

Number of rows : 8

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 CIZA J0812.5-5714 ClG 08 12 30.3 -57 14 06           ~ 13 0
2 2E 0811.4-5704 X 08 12 37.3 -57 13 44           ~ 3 0
3 NAME Hya A LIN 09 18 05.651 -12 05 43.99   14.38 14.8     ~ 908 1
4 ACO 2052 ClG 15 16 45.5 +07 00 01           ~ 675 1
5 2MAXI J1546-834 ClG 15 39 33.9 -83 35 32           ~ 20 0
6 1RXS J153934.7-833535 X 15 39 35.1 -83 35 35           ~ 2 0
7 1RXS J160107.6-754534 X 16 01 07.598 -75 45 34.02           ~ 1 0
8 2MAXI J1601-758 ClG 16 01 46.7 -75 44 46           ~ 22 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2010A&A...513A...2G and select 'bookmark this link' or equivalent in the popup menu


2020.07.14-21:48:48

© Université de Strasbourg/CNRS

    • Contact