
| Proposal ID | 030684 |
| Title | The energy budget of soft X-ray selected polars |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0306840901 |
| DOI | https://doi.org/10.5270/esa-y1o3cq6 |
| Principal Investigator, PI | Dr Klaus Reinsch |
| Abstract | Since the early days of X-ray astronomy one of the central questions in ourunderstanding of accretion onto magnetic white dwarfs in compact binaries iswhether their observed ratio between soft and hard X-ray emission is inaccordance with theoretical expectations or not. We propose to address thisissue with XMM-Newton observations of a sample of soft X-ray selected polarsfrom the ROSAT All-Sky Survey. The X-ray characteristics of our sample membersare complementary to the parameter space covered by observations of polars inthe XMM-Newton GTO programme. A detailed study of the spectral components, theirflux contributions, and the physical structure of the accretion regions in thesesystems will, therefore, provide new insight into this long-lasting problem. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2005-08-15T06:39:38Z/2005-08-22T17:06:19Z |
| 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 | 2006-09-25T00:00:00Z |
| Last Update | 2025-08-04 |
| Keywords | "XMM", "XMM-Newton", "accretion region", "magnetic white dwarfs", "hard xray emission", "physical structure", "xmm newton", "flux contributions", "sky survey", "ROSAT", "parameter space covered", "spectral components", "xray characteristics", "energy budget", "soft xray", "xray astronomy", "compact binary" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Klaus Reinsch, 2006, 'The energy budget of soft X-ray selected polars', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-y1o3cq6 |