A dataset provided by the European Space Agency

Name 014859
Title The metallic abundances in the polar BY Cam
URL

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0148590201
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0148590301
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0148590401
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0148590501
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0148590601
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0148590701
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0148590801
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0148590901

DOI https://doi.org/10.5270/esa-rpgqdfn
Author Dr Jean-Marc Bonnet-Bidaud
Description The source BY Cam is unique among all highly magnetized cataclysmic variables
(polars) in showing a significant asynchronism between rotation and orbital
periods and very peculiar C and N emission line ratios in the UV, suggesting
abnormal CNO abundances. Recent FUSE observations in the far UV have now also
revealed the weakness of the resonance OVI line. The origin of this very
peculiar line spectrum is unknown. BY Cam may indeed represent a key system
for our understanding of CNO enrichment and nova phenomenon onto magnetized
white dwarfs. We propose to observe the source with XMM to derive for the
first time a detailed X-ray line spectrum with RGS reaching the important
metallic lines and to follow its variability with EPIC.\\
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2003-08-30T05:15:43Z/2003-10-13T21:58:59Z
Version PPS_NOT_AVAILABLE
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 2004-10-31T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Jean-Marc Bonnet-Bidaud, 2004, 014859, PPS_NOT_AVAILABLE, European Space Agency, https://doi.org/10.5270/esa-rpgqdfn