The systematic discovery of outflows in the optical spectra of low-mass X-ray binaries opened a new avenue for the study of the outburst evolution in these...
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PublicaciónAsk the machine: systematic detection of wind-type outflows in low-mass X-ray binaries
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CharlaBlack holes
In his public talk, Prof. Narayan will summarize our knowledge of Black Holes in the universe. He will describe how Black Holes are discovered, how their...
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CharlaBlack holes in globular clusters
In the past few years, a series of discoveries have been made of objects which appear to be accreting stellar mass black holes in globular clusters -- both in...
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PublicaciónBlackCAT: A catalogue of stellar-mass black holes in X-ray transients
Aims: During the last ~50 years, the population of black hole candidates in X-ray binaries has increased considerably, with 59 Galactic objects being detected...
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PublicaciónBowen blend echo-tomography of low mass X-ray binaries
We present simultaneous high time resolution (1-10 Hz) X-ray and optical observations of the persistent LMXBs Sco X-1 and V801 Ara( = 4U 1636-536). In the case...
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PublicaciónCandidate optical counterparts of XTE J1728-295 = IGR J17285-2922
Following the refined position of the faint X-ray transient XTE J1728-295 (ATel #2824) also named IGR J17285-2922 and currently in outburst (ATel #2823, #2825)...
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PublicaciónChandra Detection of a New Transient X-Ray Source in M31: CXOM31 J004245.9+411036; and Non-Detection of SWIFT J004320.5+411528
We report the discovery of a previously unseen X-ray source detected in a 5ks Chandra/ACIS observation starting on 2008-11-27.72 UT as part of our ongoing...
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PublicaciónChandra Detection of a New Transient X-Ray Source in M31: CXOM31 J004251.5+411701
We report the discovery of a previously unseen X-ray source detected in a 5ks Chandra/ACIS observation starting on 2009-03-11.59 UT as part of our ongoing...
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PublicaciónChandra detection of outburst from M31 binary CXOM31 J004321.1+411751
Based on a 5ks Chandra ACIS-I observation of M31 on Nov 11 2009, we report a dramatic brightening of CXOM31 J004321.1+411751, [aka r3-7 (Kong et al. 2002 ApJ...