77 citations · 159 across the 5 of their papers we have counts for
6 papers
New or Improved Orbital Periods of Cataclysmic Binaries
John R. Thorstensen, Frederick A. Ringwald, Cynthia J. Taylor +5
We present a table of 58 cataclysmic binary orbital periods determined using data from MDM Observatory. Most are heretofore unpublished; some are refinements of previously publishe…
Spectroscopic Orbital Periods for 29 Cataclysmic Variables from the Sloan Digital Sky Survey
John R. Thorstensen, Cynthia J. Taylor, Christopher S. Peters +3
We report follow-up spectroscopy of 29 cataclysmic variables from the Sloan Digital Sky Survey (SDSS), 22 of which were discovered by SDSS and seven other previously known systems…
Optical Studies of Twenty Longer-Period Cataclysmic Binaries
John R. Thorstensen, Christopher S. Peters, Julie N. Skinner
We obtained time-series radial velocity spectroscopy of twenty cataclysmic variable stars, with the aim of determining orbital periods P_orb. All of the stars reported here prove t…
A New, Bright, Short-Period, Emission Line Binary in Ophiuchus
M. A. Stark, Richard A. Wade, John R. Thorstensen +4
The 11th magnitude star LS IV -08 3 has been classified previously as an OB star in the Luminous Stars survey, or alternatively as a hot subdwarf. It is actually a binary star. We…
The WEBT Campaign on the Blazar 3C279 in 2006
M. Boettcher
The quasar 3C279 was the target of an extensive multiwavelength monitoring campaign from January through April 2006, including an optical-IR-radio monitoring campaign by the Whole…
Spectroscopy of Four Cataclysmic Variables with Periods above 7 Hours
Christopher S. Peters, John R. Thorstensen
We present spectroscopy of four cataclysmic variables. Using radial velocity measurements, we find orbital periods for the first time. The stars and their periods are GY Hya, 0.347…