| Proposal ID | 030557 |
| Title | Is the white dwarf in HS2331+3905 a rapid rotator? |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0305570101 |
| DOI | https://doi.org/10.5270/esa-ktfk3ca |
| Principal Investigator, PI | Dr Boris Gaensicke |
| Abstract | We have recently identified the cataclysmic variable (CV) HS2331+3905, whichdisplays a fascinating combination of properties: it is probably one of theoldest known CVs with a brown dwarf donor, it is brightest CV containing apulsating white dwarf which is probably rotating with a very short spin periodof 67s, and it may harbour a precessing warped accretion disc. We have alreadyexplored this system from the ultraviolet into the infrared, and request hereXMM-Newton time to unambiguously determine whether the white dwarf inHS2331+3905 is a magnetic rapid rotator. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2006-01-02T12:31:15Z/2006-01-02T21:34:42Z |
| 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 | 2007-09-30T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "XMM-Newton", "fascinating combination", "xmm newton time", "brightest cv", "magnetic rapid rotator", "brown dwarf donor", "XMM", "pulsating white dwarf", "white dwarf", "short spin period", "rapid rotator ?." |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Boris Gaensicke, 2007, 'Is the white dwarf in HS2331+3905 a rapid rotator?', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-ktfk3ca |