Proposal ID | 080177 |
Title | The first mass and angular momentum loss measurements for a CV-like binary |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0801770201 |
DOI | https://doi.org/10.5270/esa-moikdea |
Principal Investigator, PI | Dr Jeremy Drake |
Abstract | We are proposing for the last of 6 XMM-Newton 15ks observations of the dM+WDpre-cataclysmic variable QS Vir in a coordinated joint HST-XMM campaign. Threeyear multi-cycle joint HST-XMM observations were approved in 2014, but XMMlacked a multi-cycle program to follow the 2nd and 3rd year HST approval. HSTdata probe the accretion rate of the M dwarf wind through WD photosphericabsorption lines, while XMM measures accretion through accretion shock emission.Earlier non-coordinated observations showed different accretion rates by afactor of 1000. The new observation will probe the accretion variability overthe crucial year timescale, provide a measure of the variability of the M dwarfmass and angular momentum loss rates, and make a key test of accretion rates derived from different techniques. |
Publications |
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Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2017-07-17T22:48:33Z/2017-07-18T03:31:53Z |
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 | 2018-08-02T22:00:00Z |
Keywords | "accretion variability", "XMM-Newton", "multi cycle", "xmm newton", "accretion shock emission", "accretion rate", "hst xmm campaign", "multi cycle program", "hst approval", "hst xmm", "xmm measures accretion", "accretion rates", "XMM", "hst data probe", "dwarf wind", "xmm lacked", "dwarf mass", "key test", "HST" |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Dr Jeremy Drake, 2018, 'The first mass and angular momentum loss measurements for a CV-like binary', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-moikdea |