A dataset provided by the European Space Agency

Name 000882
Title An XMM investigation of non-thermal phenomena in the winds of early-type stars


DOI https://doi.org/10.5270/esa-cqy6xzm
Author Dr Gregor Rauw
Description We propose to observe the hard non-thermal X-ray emission from presumably single O-type stars known to display strong non-thermal emission in the radio domain. Theoretical models predict the existence of a small population of relativistic electrons accelerated in strong shocks in the winds of O stars. Given the enormous supply of UV photons from these stars, inverse-Compton scattering should generate a substantial non-thermal X-ray emission. XMM is the very first X-ray observatory that has the sensitivity required to measure this emission. Studying this phenomenon will provide important insight into the properties of the relativistic electron population in the winds of OB stars and could eventually provide the very first measurement of the magnetic field
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2001-03-08T11:22:34Z/2002-09-09T08:48:46Z
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 2005-01-01T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2005-01-01T00:00:00Z, 000882, PPS_NOT_AVAILABLE. https://doi.org/10.5270/esa-cqy6xzm