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Probing the Cyclotron line characteristics of 4U 1538-522 using AstroSat-LAXPC
Varun, Chandreyee Maitra, Pragati Pradhan +2
We report the first report on cyclotron line studies with the LAXPC instrument onboard AstroSat of the High mass X-ray Binary pulsar 4U 1538-52. During the observation of source wh…
NGC 300 ULX1: A test case for accretion torque theory
Georgios Vasilopoulos, Frank Haberl, Stefania Carpano +1
NGC 300 ULX1 is a newly identified ultra-luminous X-ray pulsar. The system is associated with the supernova impostor SN 2010da that was later classified as a possible supergiant Be…
Investigating ULX accretion flows and cyclotron resonance in NGC 300 ULX1
Filippos Koliopanos, Georgios Vasilopoulos, Johannes Buchner +2
Methods. We analyzed broadband XMM-Newton and NuSTAR observations of NGC 300 ULX1, performing phase-averaged and phase-resolved spectroscopy. We compared two physically motivated m…
NGC 300 ULX1: A new ULX pulsar in NGC 300
Chandreyee Maitra, Stefania Carpano, Frank Haberl +1
NGC 300 ULX1 is the fourth to be discovered in the class of the ultra-luminous X-ray pulsars. Pulsations from NGC 300 ULX1 were discovered during simultaneous XMM-Newton / NuSTAR o…
Identification of AGN in the XMM-Newton X-ray survey of the SMC
C. Maitra, F. Haberl, V. D. Ivanov +2
Context: Finding Active Galactic Nuclei (AGN) behind the Magellanic Clouds (MCs) is difficult because of the high stellar density in these fields. Although the first AGN behind the…
Observation of variable pre-eclipse dips and disk winds in the eclipsing LMXB XTE J1710-281
Gayathri Raman, Chandreyee Maitra, Biswajit Paul
We report the first detection of highly ionized Fe species in the X-ray spectrum of the eclipsing and dipping Low Mass X-ray Binary XTE J1710-281. Using archival Chandra and Suzaku…