A dataset provided by the European Space Agency

Proposal ID 050448
Title The new eclipsing cool star binary RXJ~1442-0039
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DOI https://doi.org/10.5270/esa-k0hazg5
Principal Investigator, PI Prof Jurgen Schmitt
Abstract Optical follow-up observation have shown the RASS source RXJ~1442-0039 to be aneclipsing binary consisting of two stars of spectral type G5V+K1V. Modeling ofthe optical light curve shows the eclipse to be total, implying that largefractions of the stellar surfaces are occulted during optical primary andsecondary minimum. With its rather large X-ray flux RXJ~1442-0039 is thereforeextremely well suited to study the geometric location of the X-ray emission inactivestars. Detailed X-ray studies of RXJ~1442-0039 have never been carried outin the past, therefore we propose two XMM-Newton pointings centered on primaryandoptical secondary eclipse, respectively, to search for X-ray eclipses inRXJ~1442-0039.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2008-02-07T17:04:12Z/2008-02-09T04:49:02Z
Version 17.56_20190403_1200
Mission Description The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs 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 Earths 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 2009-03-07T00:00:00Z
Last Update 2025-01-27
Keywords "optical primary", "optical light curve", "xray flux rxj", "1442 0039", "stellar surfaces", "spectral type g5v", "eclipsing binary consisting", "geometric location", "rass source rxj", "XMM-Newton", "xray eclipses", "xray emission", "secondary minimum", "XMM"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Prof Jurgen Schmitt, 2009, 'The new eclipsing cool star binary RXJ~1442-0039', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-k0hazg5