33 papers
The Long-Period Radio Transient and Cataclysmic Variable ASKAP J1745-5051: Evidence for a 15,000 K White Dwarf and a Sub-Stellar Donor
Christian Knigge, Simone Scaringi, Noel Castro Segura +2
Long-period transients (LPTs) are radio sources that exhibit polarized periodic radio bursts on time-scales of minutes to hours. At least some LPTs are associated with white dwarfs…
The X-ray emission of the long-period transient and accreting cataclysmic variable ASKAP J174508.9-505149
M. Imbrogno, M. Veresvarska, Y. L. Wang +8
Long-period transients (LPTs) challenge our knowledge of the mechanism producing radio periodic pulsations in compact objects. Some LPTs have been associated with systems hosting a…
A very rapidly rotating white dwarf in nova YZ Reticuli
G. J. M. Luna, N. Rawat, R. Angeloni +4
YZ Ret (Nova Reticuli 2020) is the first VY Scl-type nova-like variable observed to undergo a classical nova eruption. Following the outburst, timing analysis of 20-s cadence TESS…
SRGA J115215.0510656: an unusual long-period eclipsing dwarf nova with disc wind signatures
Nikita Rawat, David A. H. Buckley, John R. Thorstensen +9
We present the first detailed optical study of the cataclysmic variable SRGA J115215.0510656, based on new time-resolved photometric and spectroscopic observations complemented…
A Systematic Search for Optical Outbursts in IPs Using ASAS-SN
Jake Mendelsohn, Simone Scaringi, Martina Veresvarska +1
Cataclysmic variables can show rapid increases in optical flux. Intermediate polars (IPs), a subset with strong magnetic fields that disrupt the inner accretion disc, have been tho…
TESS light curves of two new magnetic cataclysmic variables: an asynchronous polar at the period minimum, and an eclipsing system with a large spin-to-orbit ratio
Colin Littlefield, Krystian Ilkiewicz, Paul A. Mason +2
A recent development in the study of magnetic cataclysmic variable stars (mCVs) has been the identification of asynchronously spinning mCVs with orbital periods <2 h that have sign…