A dataset provided by the European Space Agency

Name 055626
Title Varieties of WN star X-ray Emission Mechanisms


DOI https://doi.org/10.5270/esa-lw6hoe5
Author Mr Andrew Pollock
Description The extreme range of physical conditions in the winds of Wolf-Rayet stars of the nitrogen sequence in terms of density, velocity and chemical composition gives more leverage to attack the unsolved origin of X-rays from hot stars than available through the more homogenous O stars. We propose to obtain EPIC spectra of 4 prominent WN stars, including two single stars and two binaries, in order to explore both ends of the luminosity distribution.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2009-04-16T10:28:20Z/2009-04-17T05:12:56Z
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 2010-05-16T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2010-05-16T00:00:00Z, 055626, 17.56_20190403_1200. https://doi.org/10.5270/esa-lw6hoe5