Search Publications
A catalog of galaxy clusters observed by XMM-Newton
Davis, D. S.; Mushotzky, R. F.; Kuntz, K. D. +1 more
Aims:We present a uniform catalog of the images and radial profiles of the temperature, abundance, and brightness for 70 clusters of galaxies observed by XMM-Newton.
Methods: We use a new “first principles” approach to the modeling and removal of the background components; the quiescent particle background, the cosmic diffuse emission, the sof…
The first XMM-Newton slew survey catalogue: XMMSL1
Altieri, B.; Read, A. M.; Esquej, P. +3 more
Aims:We report on the production of a large area, shallow, sky survey, from XMM-Newton slews. The great collecting area of the mirrors coupled with the high quantum efficiency of the EPIC detectors have made XMM-Newton the most sensitive X-ray observatory flown to date. We use data taken with the EPIC-pn camera during slewing manoeuvres to perform…
The EPIC-MOS particle-induced background spectra
Kuntz, K. D.; Snowden, S. L.
Context: To analyze diffuse emission that fills the field of view, one must accurately characterize the instrumental backgrounds. For the XMM-Newton EPIC-MOS instrument these backgrounds include a temporally variable “quiescent” component, as well as the strongly variable soft proton contamination.
Aims: We have characterized the spectral and …
Radial temperature profiles for a large sample of galaxy clusters observed with XMM-Newton
Molendi, S.; Leccardi, A.
Aims: We measure radial temperature profiles as far out as possible for a sample of ≈50 hot, intermediate redshift galaxy clusters, selected from the XMM-Newton archive, keeping systematic errors under control.
Methods: Our work is characterized by two major improvements. First, we used background modeling, rather than background subtraction, …
Galaxy-cluster gas-density distributions of the representative XMM-Newton cluster structure survey (REXCESS)
Böhringer, H.; Arnaud, M.; Pointecouteau, E. +7 more
We present a study of the structural and scaling properties of the gas distributions in the intracluster medium (ICM) of 31 nearby (z < 0.2) clusters observed with XMM-Newton, which together comprise the Representative XMM-Newton Cluster Structure Survey (REXCESS). In contrast to previous studies, this sample is unbiased with respect to X-ray s…
An absorption origin for the X-ray spectral variability of MCG-6-30-15
Turner, T. J.; Reeves, J. N.; Miller, L.
Context: The Seyfert I galaxy MCG-6-30-15 shows one of the best examples of a broad “red wing” of emission in its X-ray spectrum at energies 2 < E < 6.4 keV, commonly interpreted as being caused by relativistically-blurred reflection close to the event horizon of the black hole.
Aims: We aim to test an alternative model in which absorpti…
LoCuSS: comparison of observed X-ray and lensing galaxy cluster scaling relations with simulations
Zhang, Y. -Y.; Finoguenov, A.; Böhringer, H. +5 more
The Local Cluster Substructure Survey (LoCuSS, Smith et al.) is a systematic multi-wavelength survey of more than 100 X-ray luminous galaxy clusters in the redshift range 0.14-0.3 selected from the ROSAT All Sky Survey. We used data on 37 LoCuSS clusters from the XMM-Newton archive to investigate the global scaling relations of galaxy clusters. Th…
Evolution of tidal disruption candidates discovered by XMM-Newton
Read, A. M.; Esquej, P.; Freyberg, M. J. +8 more
Context: It has been demonstrated that active galactic nuclei are powered by gas accretion onto supermassive black holes located at their centres. The paradigm that the nuclei of inactive galaxies are also occupied by black holes was predicted long ago by theory. In the past decade, this conjecture was confirmed by the discovery of giant-amplitude…
Detection of hot gas in the filament connecting the clusters of galaxies Abell 222 and Abell 223
Finoguenov, A.; Böhringer, H.; Simionescu, A. +4 more
Context: About half of the baryons in the local Universe are invisible and - according to simulations - their dominant fraction resides in filaments connecting clusters of galaxies in the form of low density gas with temperatures in the range of 105 < T < 107 K. This warm-hot intergalactic medium has never been detected…
X-ray hiccups from Sagittarius A* observed by XMM-Newton. The second brightest flare and three moderate flares caught in half a day
Genzel, R.; Hasinger, G.; Grosso, N. +13 more
Context: Our Galaxy hosts at its dynamical center Sgr A*, the closest supermassive black hole. Surprisingly, its luminosity is several orders of magnitude lower than the Eddington luminosity. However, the recent observations of occasional rapid X-ray flares from Sgr A* provide constraints on the accretion and radiation mechanisms at work close to …