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A Black Hole X-ray Binary at 100 Hz: Multiwavelength Timing of MAXI J1820+070 with HiPERCAM and NICER
J. A. Paice, P. Gandhi, T. Shahbaz +12
We report on simultaneous sub-second optical and X-ray timing observations of the low mass X-ray binary black hole candidate MAXI J1820+070. The bright 2018 outburst rise allowed s…
Doppler tomography as a tool for detecting exoplanet atmospheres
Christopher Watson, Ernst de Mooij, Danny Steeghs +4
High-resolution Doppler spectroscopy is a powerful tool for identifying molecular species in the atmospheres of both transiting and non-transiting exoplanets. Currently, such data…
Core crystallization and pile-up in the cooling sequence of evolving white dwarfs
Pier-Emmanuel Tremblay, Gilles Fontaine, Nicola Pietro Gentile Fusillo +7
White dwarfs are stellar embers depleted of nuclear energy sources that cool over billions of years. These stars, which are supported by electron degeneracy pressure, reach densiti…
The EREBOS project -- Investigating the effect of substellar and low-mass stellar companions on late stellar evolution
V. Schaffenroth, B. N. Barlow, S. Geier +14
Eclipsing post-common envelope binaries are highly important for resolving the poorly understood, very short-lived common envelope phase. Most hot subdwarfs (sdO/Bs) are the bare H…
Short period variable stars in young open cluster Stock 8
Sneh Lata, Anil. K. Pandey, Ram Kesh Yadav +5
We present time series photometry in the field of Stock 8 and identified 130 short period variable stars. Twenty eight main-sequence and 23 pre-main-sequence variables are found to…
Optical and X-ray Correlations During the 2015 Outburst of the Black Hole V404 Cyg
R. I. Hynes, E. L. Robinson, D. M. Terndrup +5
We present a serendipitous multiwavelength campaign of optical photometry simultaneous with Integral X-ray monitoring of the 2015 outburst of the black hole V404 Cyg. Large amplitu…