Publications (6)
Short-cadence K2 observations of an accretion-state transition in the polar Tau 4
Colin Littlefield, Peter Garnavich, Paula Szkody +5
The Kepler spacecraft observed a total of only four AM Herculis cataclysmic variable stars during its lifetime. We analyze the short-cadence K2 light curve of one of those systems,…
Superhumps in Cataclysmic Binaries. XXV. q_crit, epsilon(q), and Mass-Radius
Joseph Patterson, Jonathan Kemp, David Harvey +17
We report on successes and failures in searching for positive superhumps in cataclysmic variables, and show the superhumping fraction as a function of orbital period. Basically, al…
Superhumps in Cataclysmic Binaries. XXIII. V442 Ophiuchi and RX J1643.7+3402
Joseph Patterson, William Fenton, John Thorstensen +15
We report the results of long observing campaigns on two novalike variables: V442 Ophiuchi and RX J1643.7+3402. These stars have high-excitation spectra, complex line profiles sign…
Superhumps and flickering in V1316 Cygni
David Boyd, Christopher Lloyd, Robert Koff +7
We present analysis and results of a coordinated CCD photometry campaign to observe the 2006 June superoutburst of the cataclysmic variable V1316 Cyg involving 8 longitudinally-dis…
Orbital Period Increase in ES Ceti
Enrique de Miguel, Joseph Patterson, Jonathan Kemp +5
We report a long-term study of the eclipse times in the 10-minute helium binary ES Ceti. The binary period increases rapidly, with P/P-dot = 6.2x10^6 yr. This is consistent with th…
Multicolor Observations of ASAS 002511+1217.2
Alex Golovin, Aaron Price, Matthew Templeton +11
We present multicolor CCD photometry of ASAS 002511+1217.2 for first 55 days of 2004 outburst.