A dataset provided by the European Space Agency

Name: X-ray aurora of the early magnetic B-type star HR 7355
Published: 2019-11-05T23:00:00Z

Proposal ID	082439
Title	X-ray aurora of the early magnetic B-type star HR 7355
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0824390101
DOI	https://doi.org/10.5270/esa-pyzbchx
Principal Investigator, PI	Dr Lidia Oskinova
Abstract	As a decisive experiment to establish whether particle acceleration operates inmagnetic hot stars, we propose a joint XMM and NuSTAR observation of the B2Vstar HR7355. Non-thermal radio emissions have already been detected from HR7355.Our advanced 3-D models predict rotationally modulated non-thermal X-rayemission from polar aurorae. XMM and NuSTAR observations are requested tovalidate this prediction. Detecting X-ray aurorae will overturn the hithertoaccepted theory of X-ray production in early-type magnetic stars. The new datawill also provide important insights into the auroral mechanism operating inastronomical objects, from planets to massive stars.
Publications	The XMM-Newton Line Emission Analysis Program (X-LEAP). I. Emission-line Survey of O VII, O VIII, and Fe L-shell Transitions \|Pan, Zeyang, Qu, Zhijie, et al. \| ApJS \| 271-62 \| 2024 \| 2024ApJS..271...62P \| http://ui.adsabs.harvard.edu/#abs/2024ApJS..271...62P From Active Stars to Black Holes: A Discovery Tool for Galactic X-Ray Sources \|Rodriguez, Antonio C., \| PASP \| 136-054201 \| 2024 \| 2024PASP..136e4201R \| http://ui.adsabs.harvard.edu/#abs/2024PASP..136e4201R
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2018-10-01T09:40:40Z/2018-10-02T02:52:20Z
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	2019-11-05T23:00:00Z
Keywords	"NuSTAR", "x ray aurora", "astronomical objects", "XMM", "xray aurorae", "type magnetic stars", "b2v star hr7355", "particle acceleration operates", "massive stars", "magnetic hot stars", "auroral mechanism operating", "polar aurorae", "decisive experiment", "xray production", "nonthermal radio emissions"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Lidia Oskinova, 2019, 'X-ray aurora of the early magnetic B-type star HR 7355', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-pyzbchx