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SDSS 1355+0856: A detached white dwarf + M star binary in the period gap discovered by the SWARMS survey
Carles Badenes, Marten H. van Kerkwijk, Mukremin Kilic +5
SDSS 1355+0856 was identified as a hot white dwarf (WD) with a binary companion from time-resolved SDSS spectroscopy as part of the ongoing SWARMS survey. Follow-up observations wi…
A Parameter-Space Study of Carbon-Oxygen White Dwarf Mergers
Chenchong Zhu, Philip Chang, Marten van Kerkwijk +1
The merger of two carbon-oxygen white dwarfs can lead either to a spectacular transient, stable nuclear burning or a massive, rapidly rotating white dwarf. Simulations of mergers h…
Constraints on the Compact Object Mass in the Eclipsing HMXB XMMU J013236.7+303228 in M33
Varun Bhalerao, Marten H van Kerkwijk, Fiona Harrison
We present optical spectroscopic measurements of the eclipsing High Mass X-ray Binary XMMU J013236.7+303228 in M33. Based on spectra taken at multiple epochs of the 1.73d binary or…
Merging White Dwarfs and Thermonuclear Supernovae
Marten H. van Kerkwijk
Thermonuclear supernovae result when interaction with a companion reignites nuclear fusion in a carbon-oxygen white dwarf, causing a thermonuclear runaway, a catastrophic gain in p…
The relativistic pulsar-white dwarf binary PSR J1738+0333 I. Mass determination and evolutionary history
J. Antoniadis, M. H. van Kerkwijk, D. Koester +5
PSR J1738+0333 is one of the four millisecond pulsars known to be orbited by a white dwarf companion bright enough for optical spectroscopy. Of these, it has the shortest orbital p…