| 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 |
| Keywords | "equivalent width", "low abundance", "cataclysmic variable", "XMM-Newton", "continuum dominated spectrum", "xmm newton", "prominent emission lines", "single abundance", "kev line", "thermal plasma", "1es 0437 046", "XMM", "solar abundance", "xray spectrum", "bf eri", "optical counterpart", "msun white dwarf", "xray emission", "optically thin" |
| 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 |