A dataset provided by the European Space Agency

Name 067380
Title Detailed investigation of the outburst cycle of a helium dwarf nova


DOI https://doi.org/10.5270/esa-a4iik9n
Author Dr Gavin Ramsay
Description The AM CVn systems are interacting binaries with orbital periods <70 minutes. Their spectra show almost no hydrogen and are therefore excellent laboratories for the study of helium dominated accretion flows. We have a monitoring programme to detect optical outbursts from these binaries and found that KL Dra undergoes outbursts every virgul60 days. Observations made using Swift show the UV flux mirrors the optical. However, we were unable to draw firm conclusions regarding the X-ray component due to its low flux. We propose to obtain a series of observations of KL Dra over an outburst using XMM-Newton. These are necessary to drive forward theoretical models of disc instabilities these and other binaries such as X-ray transients.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2011-09-19T04:19:24Z/2011-10-03T09:09:24Z
Version 17.56_20190403_1200
Mission Description The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations.
Since Earth's atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis.
Creator Contact https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk
Date Published 2012-10-25T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2012-10-25T00:00:00Z, 067380, 17.56_20190403_1200. https://doi.org/10.5270/esa-a4iik9n