2004A&A...423...49D


C.D.S. - SIMBAD4 rel 1.7 - 2020.01.24CET08:27:32

2004A&A...423...49D - Astronomy and Astrophysics, volume 423, 49-56 (2004/8-3)

X-ray spectroscopy on Abell 478 with XMM-Newton.

DE PLAA J., KAASTRA J.S., TAMURA T., POINTECOUTEAU E., MENDEZ M. and PETERSON J.R.

Abstract (from CDS):

We report the results from a spatially resolved spectroscopy study with XMM-Newton on the relaxed cluster of galaxies Abell 478. From the EPIC data we extract a temperature profile and radial abundance profiles for Ne, Mg, Si, S, Ca, Fe and Ni. The abundance profiles follow the same trends as observed in other clusters. The spectra of the core of the cluster can be best fitted with a multi-temperature model. We argue that this multi-temperature behavior is mostly due to projection effects, because of the strong temperature gradient in the core. Contributions from other effects, for example, intrinsic temperature stratification cannot be fully excluded. For the first time we measure an underabundance of oxygen in the Galactic absorption component toward a cluster. The measured oxygen abundance in this absorber is about 0.5 times the solar oxygen abundance as determined by Anders & Grevesse (1989GeCoA..53..197A)

Abstract Copyright:

Journal keyword(s): galaxies: clusters: general - galaxies: clusters: individual: Abell 478 - galaxies: cooling flows - galaxies: intergalactic medium - X-rays: galaxies: clusters - ISM: abundances

Simbad objects: 4

goto Full paper

goto View the reference in ADS

Number of rows : 4

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 ACO 478 ClG 04 13 20.7 +10 28 35           ~ 463 0
2 V* CM Tau Psr 05 34 31.93830 +22 00 52.1758           F 4739 1
3 M 1 SNR 05 34 31.94 +22 00 52.2           ~ 5520 4
4 V* V1341 Cyg LXB 21 44 41.1544523872 +38 19 17.065856122 15.00 15.13 14.68 15.00   A9III 1065 1

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2004A&A...423...49D and select 'bookmark this link' or equivalent in the popup menu


2020.01.24-08:27:32

© Université de Strasbourg/CNRS

    • Contact