A dataset provided by the European Space Agency

Name 014320
Title A Search for X-ray Emission in Carbon-rich Wolf-Rayet Stars
URL

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0143200101
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0143200301

DOI https://doi.org/10.5270/esa-e6k74nx
Author Dr Stephen Skinner
Description We propose to use the excellent sensitivity of XMM-Newton to conduct a search
for X-ray emission in five of the closest known carbon-rich (WC) Wolf-Rayet
stars. Our primary objective is to determine if single WC stars without
companions are X-ray sources. X-ray emission is expected to originate in their
powerful shocked winds, and a few weak X-ray detections have been reported. But,
our review of the archive data indicates that these detections are in doubt and
the X-ray properties of WC stars as a class remain essentially unknown. EPIC
will reach detection limits an order of magnitude below previous values and will
provide the information on X-ray emission levels in WC stars that is needed to
plan a broader survey of this understudied class of luminous evolved objects.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2003-09-04T13:50:59Z/2003-09-13T17:54:50Z
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 2004-10-09T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Stephen Skinner, 2004, 014320, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-e6k74nx