A dataset provided by the European Space Agency

Name 069176
Title A search for a spinning white dwarf companion in the gCas-analog HD 161103


DOI 10.5270/esa-ykmmjfc
Author Dr Raimundo Lopes de Oliveira
Description We ask for a new observation of the gamma Cassiopeiae-like X-ray star HD 161103 to check for the presence of the 3.2 ks modulation seen in the previous XMM-Newton observation (in 2004). If the modulation is observed once again with the same period, it would support the origin of the mysterious X-ray emission of the whole class of gamma Cas-like stars as being due to an accreting compact object, presumably a white dwarf.
Publication Serendipitous UV source catalogues for 10 years of XMM and 5 years of Swift . Yershov, V. N., . Ap&SS . 354-97 . 2014 . 2014Ap&SS.354...97Y ,
The Million Optical - Radio-X-ray Associations (MORX) Catalogue . Flesch, Eric W., . PASA . 33-52 . 2016 . 2016PASA...33...52F ,
Contribution of a Non-Thermal Component to the X-Ray Emission of OB Stars . Ryspaeva, E. B., Kholtygin, A. F., . AstBu . 75-127 . 2020 . 2020AstBu..75..127R ,
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2012-09-08T09:37:49Z/2012-09-08T15:59:46Z
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 2013-09-21T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2013-09-21T00:00:00Z, 069176, 17.56_20190403_1200. https://doi.org/10.5270/esa-ykmmjfc