X-ray spectroscopy of the cluster of galaxies Abell 1795 with XMM-Newton
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Open Access
- 15 January 2001
- journal article
- research article
- Published by EDP Sciences in Astronomy & Astrophysics
- Vol. 365 (1) , L87-L92
- https://doi.org/10.1051/0004-6361:20000038
Abstract
The initial results from XMM-Newton observations of the rich cluster of galaxies Abell 1795 are presented. The spatially-resolved X-ray spectra taken by the European Photon Imaging Cameras (EPIC) show a temperature drop at a radius of ~200 kpc from the cluster center, indicating that the ICM is cooling. Both the EPIC and the Reflection Grating Spectrometers (RGS) spectra extracted from the cluster center can be described by an isothermal model with a temperature of ~4 keV. The volume emission measure of any cool component ( keV) is less than a few % of the hot component at the cluster center. A strong Oviii Lyman α line was detected with the RGS from the cluster core. The O abundance and its ratio to Fe at the cluster center is 0.2-0.5 and 0.5-1.5 times the solar value, respectively.Keywords
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This publication has 19 references indexed in Scilit:
- XMM-Newton observatoryAstronomy & Astrophysics, 2001
- The Reflection Grating Spectrometer on board XMM-NewtonAstronomy & Astrophysics, 2001
- The properties of cooling flows in X-ray luminous clusters of galaxiesMonthly Notices of the Royal Astronomical Society, 2000
- Statistical properties of metal abundances of the intracluster medium in the central region of clustersMonthly Notices of the Royal Astronomical Society, 2000
- An X‐Ray Temperature Map of Abell 1795, a Galaxy Cluster in Hydrostatic EquilibriumThe Astrophysical Journal, 1996
- ASCA observations of cooling flows in clusters of galaxiesThe Astrophysical Journal, 1994
- Cooling Flows in Clusters of GalaxiesAnnual Review of Astronomy and Astrophysics, 1994
- Properties of cooling flows in a flux-limited sample of clusters of galaxiesMonthly Notices of the Royal Astronomical Society, 1992
- Abundances of the elements: Meteoritic and solarGeochimica et Cosmochimica Acta, 1989
- X-ray spectroscopy of the galaxy M87 - Radiative accretion of the hot plasma haloThe Astrophysical Journal, 1982