Publication
New X-Ray Transient in M31: CXO J004412.4+412548
We report the discovery of a new X-ray source detected in a 5ks observation starting on 2007-02-14.08 UT as part of our ongoing Chandra/HST M31 transient...
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PublicationNew X-Ray Transient in M31: CXOM31 J004059.2+411551We report the discovery of a previously unseen X-ray point source detected in a 5ks observation starting on 2007-07-05.54 UT as part of our ongoing Chandra/HST...
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PublicationNew X-Ray Transient in M31: CXOM31 J004258.6+411527We report the discovery of a previously unseen X-ray point source detected in a 10ks observation starting on 2007-06-02.93 UT as part of our ongoing Chandra/HST...
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PublicationNIR counterparts to ULXs (III): completing the photometric survey and selected spectroscopic resultsWe present results from the remaining sources in our search for near-infrared (NIR) candidate counterparts to ultraluminous X-ray sources (ULXs) within ≃10 Mpc...
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TalkNon-evolution of black hole mass/luminosity ratio, superluminal motions and other pending problems in QSOs1) López-Corredoira & Gutiérrez (2012, RAA, 12, 249): Extremely luminous QSOs exist at high redshift but they are absent at low redshift. Our analyses show that...
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PublicationNovember 2007 Chandra Observations of X-Ray Transients in M31As part of our ongoing Chandra/HST M31 transient program we report on two active sources recently detected in two Chandra ACIS observations. Source 1 We present...
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PublicationObservational properties of accretion discs: Precessing and warped?Over the last 40 years, X-ray astronomy missions have revealed long-term, superorbital periods in a variety of X-ray binaries. These modulations can provide...
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NewsObservers measure how Andromeda’s central black hole is fedA team of scientists led by the Observatory of Munich University and the Instituto de Astrofísica de Canarias have obtained direct visualization of the process...
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PublicationOn the origin of lithium in the black hole binary V404 Cyg.Not Available