A dataset provided by the European Space Agency

Proposal ID 015253
Title Spin periods and accretion disc structure in CV.s below the period gap
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0152530101
DOI https://doi.org/10.5270/esa-d38oh8y
Principal Investigator, PI Dr Pasi Hakala
Abstract Our XMM-Newton observations of dwarf nova OY Car have revealed a possible WDspin period at 0.41 of the orbital period (Ramsay et al. 2001a). Now we plan to observe a set of other dwarf novae below the period gap in order to searchfor WD spin periods. If they are detectable in X-rays, it immediatedly impliesthat the white dwarfs in these systems are at least weakly magnetic. This wouldextend the spectrum of magnetic CV.s into even weaker field systems than theintermediate polars. We will also use our accretion disc structure modellingcodes, together with combined X-ray and OM light curves, to retrieve informationon the 3D structure of the discs in these systems.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2002-10-05T07:02:40Z/2002-10-05T17:17:46Z
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 2003-11-14T00:00:00Z
Keywords "wd spin period", "white dwarfs", "combined xray", "XMM-Newton", "xmm newton", "wd spin periods", "magnetic cv", "weaker field systems", "immediatedly implies", "accretion disc structure", "spin periods", "orbital period ramsay", "XMM", "dwarf novae", "weakly magnetic", "om light curves", "intermediate polars", "period gap", "retrieve information", "3d structure"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Pasi Hakala, 2003, 'Spin periods and accretion disc structure in CV.s below the period gap', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-d38oh8y