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SAC Seminar - Gavin Ramsay: Outbursts from ultra-compact binaries

Oplysninger om arrangementet

Tidspunkt

Tirsdag 5. marts 2013,  kl. 15:00 - 16:00

Sted

1525-323

Speaker: Gavin Ramsay, Armagh Observatory, College Hill Armagh

Title: Outbursts from ultra-compact binaries

Abstract: 

AM CVn binaries have orbital periods between 5 - 70 mins and composed of a degenerate star accreting from a degenerate (or semi degenerate) star.

Their accretion flows are devoid of hydrogen and are predicted to be the first sources detected by space based gravitational wave detectors such as eLISA-NGO. I will present an overview of a survey of these systems using the Liverpool Telescope to determine their optical outburst properties and X-ray/UV/Optical observations of one system, KL Dra over an outburst cycle.