A dataset provided by the European Space Agency

Name 082439
Title X-ray aurora of the early magnetic B-type star HR 7355
URL

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0824390101

DOI https://doi.org/10.5270/esa-pyzbchx
Author Dr Lidia Oskinova
Description As a decisive experiment to establish whether particle acceleration operates in magnetic hot stars, we propose a joint XMM and NuSTAR observation of the B2V star HR7355. Non-thermal radio emissions have already been detected from HR7355. Our advanced 3-D models predict rotationally modulated non-thermal X-ray emission from polar aurorae. XMM and NuSTAR observations are requested to validate this prediction. Detecting X-ray aurorae will overturn the hitherto accepted theory of X-ray production in early-type magnetic stars. The new data will also provide important insights into the auroral mechanism operating in astronomical objects, from planets to massive stars.
Publication No observations found associated with the current proposal
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 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 2019-11-05T23:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2019-11-05T23:00:00Z, 082439, 17.56_20190403_1200. https://doi.org/10.5270/esa-pyzbchx