A dataset provided by the European Space Agency

Proposal ID 030216
Title Extending the XMM-Newton survey of AM CVn systems to longer periods
Download Data Associated to the proposal

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0302160201
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0302160401

DOI https://doi.org/10.5270/esa-3bl8p45
Principal Investigator, PI Dr Gavin Ramsay
Abstract We have an on-going project to survey the ultra-compact AM CVn systems usingXMM-Newton. These accreting binaries have periods less than ~70 min and arehydrogen deficient. They are important astrophysically because they are expectedto be strong sources of gravitational radiation in the peak sensitivity band ofLISA. XMM-Newton has so far observed 7 of the 13 AM CVn systems, but this isbiased towards shorter period systems. We propose to observe another 4 systemsto give us a comprehensive sample of these objects. In particular, we willdetermine the element abundance from their X-ray spectra and characterise theX-ray and UV variability as a function of orbital period. This is essential forour understanding of their evolutionaryhistory and their energy balance.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2005-07-20T13:35:39Z/2006-01-08T02:43:31Z
Version 17.56_20190403_1200
Mission Description The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs 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 Earths 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 2007-01-27T00:00:00Z
Last Update 2026-03-04
Keywords "gravitational radiation", "xmm newton survey", "am cvn systems", "XMM", "xmm newton", "hydrogen deficient", "energy balance", "uv variability", "element abundance", "peak sensitivity band", "comprehensive sample", "orbital period", "XMM-Newton", "accreting binary", "xray spectra"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Gavin Ramsay, 2007, 'Extending the XMM-Newton survey of AM CVn systems to longer periods', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-3bl8p45