| Proposal ID | 084074 |
| Title | The Quest for a Self-Consistent Model of BF Eri = 1ES 0437-046 |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0840740101 |
| DOI | https://doi.org/10.57780/esa-52mskut |
| Principal Investigator, PI | Dr Koji Mukai |
| Abstract | The X-ray spectrum of BF Eri contains a puzzling contradiction. BF Eri is theoptical counterpart of an Einstein slew survey source 1ES0437-046, and wasidentified as a cataclysmic variable with a massive (>1.23 Msun) white dwarf. Assuch, we expect a hot, optically-thin, thermal plasma with prominent emissionlines of He-like and/or H-like iron. No such lines are seen in the Suzakuobservation, showing instead a continuum-dominated spectrum. While this could bedue to a low abundance of iron, the equivalent width of the 6.4 keV linesuggests a near-solar abundance. Here we propose an XMM-Newton observation of BFEri to confirm and refine, or refute, these Suzaku results, with the aim ofconstructing a model for the X-ray emission from BF Eri with a single abundance of iron. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2020-03-09T06:16:43Z/2020-03-09T15:35:03Z |
| Version | 18.02_20200221_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 | 2021-03-27T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "xmm newton", "cataclysmic variable", "xray spectrum", "single abundance", "thermal plasma", "msun white dwarf", "prominent emission lines", "xray emission", "kev line", "optical counterpart", "optically thin", "XMM-Newton", "bf eri", "solar abundance", "1es 0437 046", "continuum dominated spectrum", "equivalent width", "low abundance", "XMM" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Koji Mukai, 2021, 'The Quest for a Self-Consistent Model of BF Eri = 1ES 0437-046', 18.02_20200221_1200, European Space Agency, https://doi.org/10.57780/esa-52mskut |