NYSAPPS 2016
 

For NYSS APS information, contact:
Dr. Erica Simoson 
erica.simoson@fredonia.edu
716-673-4625

"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.


For program, contact:  
Dr. Heather Watson – watsonh@union.edu
Dr. Nelia Mann – mannn@union.edu
Dr. Samuel Amanuel – amanuels@union.edu
Ms. Lynnette Stec – stecl@union.edu
Phone: 518-388-6254
Fax: 518-388-6947
Department of Physics & Astronomy, Union College, Schenectady, NY 12308