A dataset provided by the European Space Agency

Name 069020
Title Probing the high energies phenomena at work in early B-type stars using the RGS


DOI https://doi.org/10.5270/esa-qpkm0lx
Author Dr Yael Naze
Description Despite its relatively high abundance amongst early-type stars, only a few B-stars have ever been observed with gratings. This resulted in our current poor understanding 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 such gratings have significantly improved our knowledge of the physical parameters, notably by revising down the mass-loss rates of those objects. We thus propose a spectroscopic survey of early B type stars aimed at discovering the X-ray emission mechanisms at work in their weak winds using a range of diagnostics only available from high-res data (line ratios, shifts, shapes, widths).
Publication No observations found associated with the current proposal
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 Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2014-04-06T00:00:00Z, 069020, 17.56_20190403_1200. https://doi.org/10.5270/esa-qpkm0lx