A dataset provided by the European Space Agency

Proposal ID 076414
Title First X-ray detection of strongly magnetic and fast rotating B star HD 345439
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0764140101

DOI https://doi.org/10.5270/esa-8yy3wt0
Principal Investigator, PI Dr Swetlana Hubrig
Abstract We propose to observe with XMM-Newton the newly discovered fast rotating B-typestar with rigidly rotating magnetosphere, HD 345439. This enigmatic star is aclose spectroscopic analog of sigma Ori E. The latter has prominent X-rayproperties, it is X-ray bright, hard, and is suspected to display X-ray flares.However, only a few members of sigma Ori E class are known, and it is importantto establish whether the X-ray properties of these stars are similar. With only10 ks exposure time we will achieve the first X-ray characterization of HD345439 and establish its X-ray luminosity and spectral hardness.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2015-04-26T06:44:34Z/2015-04-26T10:21:13Z
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 2016-06-01T22:00:00Z
Keywords "xray properties", "close spectroscopic analog", "HD 345439", "enigmatic star", "xray detection", "XMM-Newton", "xray bright", "xmm newton", "xray luminosity", "display xray flares", "exposure time", "prominent xray properties", "spectral hardness", "XMM", "star hd 345439", "rigidly rotating magnetosphere", "type star", "xray characterization", "sigma ori", "hd 345439", "fast rotating"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Swetlana Hubrig, 2016, 'First X-ray detection of strongly magnetic and fast rotating B star HD 345439', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-8yy3wt0