NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-18 T15:55:55 PDT
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For refcode 2001A&A...365L.104P:
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Copyright by European Southern Observatory (ESO). Reproduced by permission
2001A&A...365L.104P X-ray imaging-spectroscopy of Abell 1835. PETERSON J.R., PAERELS F.B.S., KAASTRA J.S., ARNAUD M., REIPRICH T.H., FABIAN A.C., MUSHOTZKY R.F., JERNIGAN J.G., SAKELLIOU I. Received 2 October 2000/Accepted 2 November 2000 Abstract. We present detailed spatially-resolved spectroscopy results of the observation of Abell 1835 using the European Photon Imaging Cameras (EPIC) and the Reflection Grating Spectrometers (RGS) on the XMM-Newton observatory. Abell 1835 is a luminous (10^46^ ergs s^-1^), medium redshift (z=0.2523), X-ray emitting cluster of galaxies. The observations support the interpretation that large amounts of cool gas are present in a multi- phase medium surrounded by a hot (kT_e_ = 8.2keV) outer envelope. We detect O VIII Ly{alpha} and two Fe XXIV complexes in the RGS spectrum. The emission measure of the cool gas below kT_e_ = 2.7keV is much lower than expected from standard cooling-flow models, suggesting either a more complicated cooling process than simple isobaric radiative cooling or differential cold absorption of the cooler gas. Key words: galaxy clusters: individual: Abell 1835 - galaxies: cooling flows - techniques: spectroscopic
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