A dataset provided by the European Space Agency

Name 009279
Title The Unusual Wolf-Rayet Star EZ CMa
URL

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0092790101

DOI https://doi.org/10.5270/esa-eyxthw9
Author Dr Stephen Skinner
Description EZ CMa is one of the most unusual Wolf-Rayet stars known. It shows well-defined
variability in the optical/UV at a period of 3.77 days. The cause of the
variability is not known, and it may be due either to binarity or corotating
structures in the wind of a single star. We propose to obtain a hign S/N EPIC
spectrum of EZ CMa, enabling us to search for the hotter plasma which should
be present if it is a binary system and to constrain the nature of the
companion. Previous ASCA observations suggest that such hotter plasma is
present.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2001-10-29T21:28:52Z/2001-10-30T01:03:16Z
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 2002-11-21T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Stephen Skinner, 2002, 009279, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-eyxthw9