Multicolour observations of V404 Cyg with ULTRACAM
We present high-time-resolution multicolour observations of the quiescent soft X-ray transient V404 Cyg obtained with ULTRACAM. Superimposed on the ellipsoidal...
Multiwavelength characterization of the accreting millisecond X-ray pulsar and ultracompact binary IGR J17062-6143
IGR J17062-6143 is an ultracompact X-ray binary (UCXB) with an orbital period of 37.96 min. It harbours a millisecond X-ray pulsar that is spinning at 163 Hz...
Multiwavelength Observations of the Black Hole Transient XTE J1752–223 during Its 2010 Outburst Decay
Galactic black hole transients show many interesting phenomena during outburst decays. We present simultaneous X-ray (RXTE, Swift, and INTEGRAL), and optical...
Multiwavelength observations of the extraordinary accretion event AT2021lwx
We present observations from X-ray to mid-infrared wavelengths of the most energetic non-quasar transient ever observed, AT2021lwx. Our data show a single...
Multiwavelength observations reveal a faint candidate black hole X-ray binary in IGR J17285-2922
IGR J17285-2922 is a known X-ray binary with a low peak 2-10 keV X-ray luminosity of ~ 10 36 erg s -1 during outburst. IGR J17285-2922 exhibited two outbursts...
Multiwavelength spectral evolution during the 2011 outburst of the very faint X-ray transient Swift J1357.2-0933
We report our multiwavelength study of the 2011 outburst evolution of the newly discovered black hole candidate X-ray binary Swift J1357.2-0933. We analysed the...
Multiwavelength spectroscopy of the black hole candidate MAXI J1813-095 during its discovery outburst
MAXI J1813-095 is an X-ray transient discovered during an outburst in 2018. We report on X-ray and optical observations obtained during this event, which...
Near-infrared emission lines trace the state-independent accretion disc wind of the black hole transient MAXI J1820+070
The black hole transient MAXI J1820+070 displayed optical P Cyg profiles and other wind-related emission line features during the hard state of its discovery...
Near-quiescent photometry of the X-ray transient J0422+32
We present I-band photometry of the soft X-ray transient (SXT) J0422+32 taken during a low-brightness state over two weeks in 1993 October. The object had a...