| Proposal ID | 086117 |
| Title | XMM-Newton survey of luminous Herbig AeBe stars |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0861170101 |
| DOI | https://doi.org/10.57780/esa-umy70pd |
| Principal Investigator, PI | Dr Jari Kajava |
| Abstract | The reason why the Herbig Ae/Be stars emit X-rays is not understood. A popularscenario is that the Herbig Ae/Be stars are not the sources of this emission,but rather the X-rays come from unresolved low-mass companion stars (T-Tauristars). However, our archival study shows that the most luminous Herbig Ae/Bestars can emit X-rays much above what is seen from T- Tauri stars, suggestingthat -- at least for the most luminous $L>10^3,L_{odot}$ Herbig Ae/Be stars --some other mechanism must be responsible for the X-ray emission. Only 8 HerbigAe/Be stars in this key luminosity range have been observed in X-rays, and thuswe propose a survey for XMM-Newton to measure the X-ray luminosities of a sampleof 24 additional luminous Herbig Ae/Be stars. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2020-10-16T14:43:02Z/2021-04-30T03:01:44Z |
| Version | 19.16_20210326_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 | 2022-06-02T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "key luminosity range", "luminous herbig ae", "xmm newton", "XMM-Newton", "tauri stars", "popular scenario", "emit xray", "xray luminosities", "xray emission", "XMM", "herbig ae", "stars emit xray", "xmm newton survey" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Jari Kajava, 2022, 'XMM-Newton survey of luminous Herbig AeBe stars', 19.16_20210326_1200, European Space Agency, https://doi.org/10.57780/esa-umy70pd |