Cataclysmic Variables with the CBA

Details Cataclysmic Variables with the CBA Cataclysmic Variables with the CBA

May 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aas...196.1003p&link_type=abstract

American Astronomical Society, 196th AAS Meeting, #10.03; Bulletin of the American Astronomical Society, Vol. 32, p.688

Astronomy and Astrophysics

Astronomy

1

Scientific paper

Since 1991 we have been engaged in long-term photometric studies of cataclysmic variables, mostly with CCD cameras mounted on small backyard telescopes. Cataclysmic variables are famous for their large quasi-periodic eruptions on timescales of weeks to years. Less well known, but equally fascinating, are their strictly periodic signals on short timescales ( ~ 10 minutes to ~ 4 days). These represent the spin of the white dwarf, the binary orbital period, ``superhump" periods, and disk precession periods. They give a fine return for a small time invested. And they give excellent scientific return for monitoring closely over intervals of weeks to months, timescales which most traditional research programs cannot effectively study. As computers and imaging systems improve, it seems likely that networks of this type will bring a revolution to the science of variable stars, by eliminating 24-hour aliases and by tapping the energy and talents of backyard astronomers around the world. We report here on a medley of new science results obtained in 1999-2000 with the CBA.

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