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68 papers · 1 filter
INTEGRAL detection of hard X-rays from NGC 6334: Nonthermal emission from colliding winds or an AGN?
A. M. Bykov, A. M. Krassilchtchikov, Yu. A. Uvarov +12
We report the detection of hard X-ray emission from the field of the star-forming region NGC 6334 with the the International Gamma-Ray Astrophysics Laboratory INTEGRAL. The JEM-X m…
ROSAT observations of the soft X-ray background and of the cluster soft excess emission in the Hercules supercluster
Max Bonamente, Richard Lieu, Jelle Kaastra
Recent observations with the XMM-Newton satellite confirmed the existence of the soft excess phenomenon in galaxy clusters, earlier discovered in several EUVE, ROSAT and BeppoSAX o…
XMM-Newton Spectroscopy of the Cluster of Galaxies 2A 0335+096
N. Werner, J. de Plaa, J. S. Kaastra +5
We present here the results of a deep (130 ks) XMM-Newton observation of the cluster of galaxies 2A 0335+096. The deep exposure allows us to study in detail its temperature structu…
Discovery of the X-ray Counterpart to the Rotating Radio Transient J1819--1458
S. P. Reynolds, K. J. Borkowski, B. M. Gaensler +10
We present the discovery of the first X-ray counterpart to a Rotating RAdio Transient (RRAT) source. RRAT J1819--1458 is a relatively highly magnetized (B G)…
Observational evidence for a truncation of the star cluster initial mass function at the high mass end
Mark Gieles, Soeren Larsen, Remco Scheepmaker +3
We present the luminosity function (LF) of star clusters in M51 based on HST/ACS observations taken as part of the Hubble Heritage project. The clusters are selected based on their…
Two-phase X-ray burst from GX 3+1 observed by INTEGRAL
Jerome Chenevez, Maurizio Falanga, Soeren Brandt +6
INTEGRAL detected on August 31, 2004, an unusual thermonuclear X-ray burst from the low-mass X-ray binary GX 3+1. Its duration was 30 min, which is between the normal burst duratio…