Context. NGC 2004#115 was classified as a single lined Be spectroscopic binary in the Large Magellanic Cloud. Its Hα morphology is reminiscent of the Galactic...
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PublicationThe VLT-FLAMES survey of massive stars. NGC 2004#115: A triple system hosting a possible short period B+BH binary
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TalkThe Warped Side of our Universe: From the Big Bang to Black Holes and Gravitational Waves
There is a "Warped side" of our universe, consisting of objects and phenomena that are made solely or largely from warped spacetime. Examples are black holes...
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PublicationThree-stage Collapse of the Long Gamma-Ray Burst from GRB 160625B Prompt Multiwavelength Observations
This article presents the early results of synchronous multiwavelength observations of one of the brightest gamma-ray bursts (GRBs) GRB 160625B with the...
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PublicationTwo new confirmed massive relic galaxies: red nuggets in the present-day Universe
We confirm two new local massive relic galaxies, i.e. untouched survivors of the early Universe massive population: Mrk 1216 and PGC 032873. Both show early and...
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PublicationTwo New X-Ray Sources in M31 and M31GC J004234+405709 Observed by Chandra
We report the discovery of two previously unseen X-ray sources detected in a 5ks Chandra/ACIS observation starting on 2008-10-13.15 UT as part of our ongoing...
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PublicationUltraCompCAT: A comprehensive catalogue of ultra-compact and short orbital period X-ray binaries
Ultracompact X-ray binaries (UCXBs) are a distinctive but elusive family of low-mass X-ray binaries (LMXBs) characterised by their tight orbits and degenerate...
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PublicationUnusual optical and X-ray flaring activity in GX 339-4
Since September 2007 we have been monitoring the optical counterpart (V, R and i-bands) of the black hole X-ray binary GX 339-4 with the Faulkes Telescope South...
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PublicationUsing radial velocities to reveal black holes in binaries: A test case
Aims: Large radial velocity variations in the LAMOST spectra of giant stars have been used to infer the presence of unseen companions. Some of them have been...
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PublicationX-ray binaries and black hole candidates: a review of optical properties
This chapter summarizes the optical properties of X-ray binaries, with special emphasis on the class of low mass X-ray binaries and soft X-ray transients. The...