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 |
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 |
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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 | 2025-01-27 |
Keywords | "energy balance", "xmm newton", "peak sensitivity band", "orbital period", "XMM-Newton", "gravitational radiation", "element abundance", "uv variability", "comprehensive sample", "am cvn systems", "XMM", "accreting binary", "xray spectra", "hydrogen deficient", "xmm newton survey" |
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 |