Abstract Submission CLOSED

For NYSS APS information, contact:
Dr. Erica Simoson 

"Gravitational radiation as the driver in ultracompact binaries"

Joe Patterson, Columbia University

The "ultracompacts" are very close binaries in which a white dwarf transfers matter to an accretion disk around a white dwarf, neutron star, or black hole. Mass transfer is thought to be powered by the loss of angular momentum by gravitational radiation... and, perhaps paradoxically, this should lead to a period increase as the binary widens. Yet no such period increase has ever been seen - until now. This paper reports such a period increase in the WD-WD binary ES Ceti, on a timescale of 6 Myr.

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Dr. Nelia Mann – mannn@union.edu
Dr. Samuel Amanuel – amanuels@union.edu
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Phone: 518-388-6254
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Department of Physics & Astronomy, Union College, Schenectady, NY 12308