| Proposal ID | 014343 |
| Title | Two probable very-short period intermediate polars |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0143430101 |
| DOI | https://doi.org/10.5270/esa-yg9b7cj |
| Principal Investigator, PI | Dr Jochen Greiner |
| Abstract | We propose to test the hypothesis that the cataclysmic variablesHS Cam (RX J0719.2+6557) and HT Cam (RX J0757.0+6306) are two short-period intermediate polars. While an alternative interpretation ispossible for each source based on the optical data, XMM-Newton observations caneasily provide the distinctive features: (i) the shape of the orbital variationof the X-ray intensity, and (ii) coherent X-ray pulsations caused by the spin ofthe white dwarf. We therefore propose short 15 and 13 ksec observations ofthese sources which is sufficient to identify these features. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2003-10-13T09:48:18Z/2003-10-13T14:23:35Z |
| 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 | 2004-11-01T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "optical data", "xray intensity", "xmm newton", "J0719.2", "XMM-Newton", "XMM", "orbital variation", "white dwarf" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Jochen Greiner, 2004, 'Two probable very-short period intermediate polars', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-yg9b7cj |