31 citations · 142 across the 11 of their papers we have counts for
11 papers
Population-based identification of Hα-excess sources in the Gaia DR2 and IPHAS catalogues
M. Fratta, S. Scaringi, J. E. Drew +8
We present a catalogue of point-like Hα-excess sources in the Northern Galactic Plane. Our catalogue is created using a new technique that leverages astrometric and photomeric info…
Exploring the tilted accretion disc of AQ Men with TESS
Krystian Ilkiewicz, Simone Scaringi, James M. C. Court +8
AQ Men is a nova-like variable which is presumed to have a tilted, precessing accretion disc. Grazing eclipses in this system have been speculated to be useful in exploring the geo…
Discovery of Thermonuclear Type-I X-ray Bursts from the X-ray binary MAXI J1807+132
A. C. Albayati, D. Altamirano, G. K. Jaisawal +13
MAXI J1807+132 is a low-mass X-ray binary (LMXB) first detected in outburst in 2017. Observations during the 2017 outburst did not allow for an unambiguous identification of the na…
Swift/XRT, Chandra and XMM-Newton observations of IGR J17091-3624 as it returns into quiescence
Pereyra, Margarita, Altamirano +11
IGR J17091-3624 is a low mass X-ray binary (LMXB) which received wide attention from the community thanks to its similarities with the bright black hole system GRS 1915+105. Both s…
EX Draconis: Using Eclipses to Separate Outside-In and Inside-Out Outbursts
James M. C. Court, Simone Scaringi, Colin Littlefield +8
We present a study of the eclipses in the accreting white dwarf EX Dra during TESS Cycles 14 and 15. During both of the two outbursts present in this dataset, the eclipses undergo…
The Eclipsing Accreting White Dwarf Z Chameleontis as Seen with TESS
J. M. C. Court, S. Scaringi, S. Rappaport +8
We present results from a study of TESS observations of the eclipsing dwarf nova system Z Cha, covering both an outburst and a superoutburst. We discover that Z Cha undergoes hyste…
Recurrent Instability in LMXB Accretion Disks: How Strange is GRS 1915+105?
James Matthew Christopher Court
Low Mass X-Ray Binaries (LMXBs) are systems in which a compact object accretes from a binary companion star via an accretion disk. The X-ray properties of LMXBs show strong variabi…
The Evolution of X-ray Bursts in the "Bursting Pulsar" GRO J1744-28
J. M. C. Court, D. Altamirano, A. C. Albayati +8
GRO J1744-28, commonly known as the `Bursting Pulsar', is a low mass X-ray binary containing a neutron star and an evolved giant star. This system, together with the Rapid Burster…
The reflection component in the average and heartbeat spectra of the black-hole candidate IGR J17091-3642 during the 2016 outburst
Yanan Wang, Mariano Méndez, Diego Altamirano +3
We present simultaneous NuSTAR and Swift observations of the black hole transient IGR J17091-3642 during its 2016 outburst. By jointly fitting six NuSTAR and four Swift spectra, we…
The Bursting Pulsar GRO J1744-28: the Slowest Transitional Pulsar?
James Court, Diego Altamirano, Andrea Sanna
GRO J1744-28 (the Bursting Pulsar) is a neutron star LMXB which shows highly structured X-ray variability near the end of its X-ray outbursts. In this letter we show that this vari…
An Atlas of Exotic Variability in IGR J17091-3624: A Comparison with GRS 1915+105
James Matthew Christopher Court, Diego Altamirano, Margarita Pereyra +5
We performed an analysis of all RXTE observations of the Low Mass X-ray Binary and Black Hole Candidate IGR J17091-3624 during the 2011-2013 outburst of the source. By creating lig…