A dataset provided by the European Space Agency

Name 010928
Title The variable WN8 star WR 40 and its ring nebula RCW 58
URL

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0109280101

DOI https://doi.org/10.5270/esa-dfzne23
Author Prof Keith Mason
Description GT- WR 40 (=HD 96548) is a Wolf Rayet star of spectral type WN8 located rather far away from the Galactic plane. Its spectrum is variable (Moffat & Isserstedt 1980) and particularly rich in emission lines and P Cygni profiles. The UV lines exhibit changes that are interpreted by Smith et al. (1985) as signs of a shocked stellar wind flow. The star is surrounded by the axisymmetric ring nebula RCW 58 which is classified as containing stellar ejecta, an almost unique feature for such a late-type WN star.Ring nebulae offer also the opportunity to look for the X-ray signature of the interaction of the high speed ejected material with the interstellar matter.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2002-02-23T23:48:14Z/2002-02-24T06:36:48Z
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 2003-03-16T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2003-03-16T00:00:00Z, 010928, 17.56_20190403_1200. https://doi.org/10.5270/esa-dfzne23