| Proposal ID | 069020 |
| Title | Probing the high energies phenomena at work in early B-type stars using the RGS |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0690200101 |
| DOI | https://doi.org/10.5270/esa-qpkm0lx |
| Principal Investigator, PI | Dr Yael Naze |
| Abstract | Despite its relatively high abundance amongst early-type stars, only a fewB-stars have ever been observed with gratings. This resulted in our current poorunderstanding of the nature of X-ray emissions from these objects. By contrast,numerous high-resolution X-ray spectra of O-stars provides us a case where suchgratings have significantly improved our knowledge of the physical parameters,notably by revising down the mass-loss rates of those objects. We thus propose aspectroscopic survey of early B type stars aimed at discovering the X-rayemission mechanisms at work in their weak winds using a range of diagnosticsonly available from high-res data (line ratios, shifts, shapes, widths). |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2012-08-22T03:03:41Z/2013-03-23T21:35:53Z |
| 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 | 2014-04-06T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "xray emission mechanisms", "mass loss rates", "resolution xray spectra", "type stars", "type stars aimed", "spectroscopic survey", "energies phenomena", "abundance amongst", "weak winds", "xray emissions", "physical parameters" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Yael Naze, 2014, 'Probing the high energies phenomena at work in early B-type stars using the RGS', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-qpkm0lx |