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astro-ph.HE2021
Optical Studies of Ten Hard X-ray Selected Cataclysmic Binaries
J. P. Halpern, J. R. Thorstensen
We conducted time-resolved optical spectroscopy and/or photometry of ten cataclysmic binaries that were discovered in hard X-ray surveys, with the goal of measuring their orbital p…
astro-ph.HE2018
Variable Heating and Flaring of Three Redback Millisecond Pulsar Companions
Patricia B. Cho, Jules P. Halpern, Slavko Bogdanov
We are monitoring established and putative redback millisecond pulsars (MSPs) in time-series photometry, repeatedly covering their 5-6 hr orbital light curves in or $R…
astro-ph.HE2018
Optical Studies of 15 Hard X-ray Selected Cataclysmic Binaries
J. P. Halpern, J. R. Thorstensen, P. Cho +5
We conducted time-resolved optical spectroscopy and/or time-series photometry of 15 cataclysmic binaries that were discovered in hard X-ray surveys by the Swift Burst Alert Telesco…