SIMBAD references

2015MNRAS.454..161K - Mon. Not. R. Astron. Soc., 454, 161-176 (2015/November-3)

Fossil group origins - VI. Global X-ray scaling relations of fossil galaxy clusters.

KUNDERT A., GASTALDELLO F., D'ONGHIA E., GIRARDI M., AGUERRI J.A.L., BARRENA R., CORSINI E.M., DE GRANDI S., JIMENEZ-BAILON E., LOZADA-MUNOZ M., MENDEZ-ABREU J., SANCHEZ-JANSSEN R., WILCOTS E. and ZARATTINI S.

Abstract (from CDS):

We present the first pointed X-ray observations of 10 candidate fossil galaxy groups and clusters. With these Suzaku observations, we determine global temperatures and bolometric X-ray luminosities of the intracluster medium (ICM) out to r500 for six systems in our sample. The remaining four systems show signs of significant contamination from non-ICM sources. For the six objects with successfully determined r500 properties, we measure global temperatures in the range 2.8 ≤ TX ≤ 5.3keV, bolometric X-ray luminosities of 0.8x1044 ≤ LX, bol ≤ 7.7x1044erg/s, and estimate masses, as derived from TX, of M500 ≳ 1014M☉. Fossil cluster scaling relations are constructed for a sample that combines our Suzaku observed fossils with fossils in the literature. Using measurements of global X-ray luminosity, temperature, optical luminosity, and velocity dispersion, scaling relations for the fossil sample are then compared with a control sample of non-fossil systems. We find the fits of our fossil cluster scaling relations are consistent with the relations for normal groups and clusters, indicating fossil clusters have global ICM X-ray properties similar to those of comparable mass non-fossil systems.

Abstract Copyright: © 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2015)

Journal keyword(s): galaxies: clusters: general - galaxies: groups: general - X-rays: galaxies: clusters

Simbad objects: 20

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2015MNRAS.454..161K and select 'bookmark this link' or equivalent in the popup menu