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11 papers · 2 filters
Supersoft X-rays reveal a classical nova in the M 31 globular cluster Bol 126
M. Henze, W. Pietsch, F. Haberl +17
[Abridged] Classical novae (CNe) represent the main class of supersoft X-ray sources (SSSs) in the central region of our neighbouring galaxy M 31. Only three confirmed novae and th…
Stochastic particle acceleration and the problem of backgroud plasma overheating
D. O. Chernyshov, V. A. Dogiel, C. M. Ko
The origin of hard X-ray (HXR) excess emission from clusters of galaxies is still an enigma, whose nature is debated. One of the possible mechanism to produce this emission is the…
Detection of X-ray periodicity from a new eclipsing polar candidate XGPS-I J183251-100106
C. Y. Hui, K. A. Seo, C. P. Hu +2
We report the results from a detailed analysis of an archival XMM-Newton observation of the X-ray source XGPS-I J183251-100106, which has been suggested as a promising magnetic cat…
Toward Identifying the Unassociated Gamma-ray Source 1FGL J1311.7-3429 with X-ray and Optical Observations
J. Kataoka, Y. Yatsu, N. Kawai +9
We present deep optical and X-ray follow-up observations of the bright unassociated Fermi-LAT gammaray source 1FGL J1311.7-3429. The source was already known as an unidentified EGR…
Investigation of CTA 1 with Suzaku Observation
Lupin C. C. Lin, Jumpei Takata, Albert K. H. Kong +7
We report on an 105 ks Suzaku observation of the supernova remnant CTA 1 (G119.5+10.2). The Suzaku soft X-ray observation was carried out with both timing mode and imaging mode. A…
Variability of the blazar 4C 38.41 (B3 1633+382) from GHz frequencies to GeV energies
C. M. Raiteri, M. Villata, P. S. Smith +74
The quasar-type blazar 4C 38.41 (B3 1633+382) experienced a large outburst in 2011, which was detected throughout the entire electromagnetic spectrum. We present the results of low…