A dataset provided by the European Space Agency

Name: Accretion and Pulsations in GW Librae 10 years after its 2007 outburst
Published: 2019-03-06T23:00:00Z

Proposal ID	080180
Title	Accretion and Pulsations in GW Librae 10 years after its 2007 outburst
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0801800201
DOI	https://doi.org/10.5270/esa-tm5883l
Principal Investigator, PI	Dr Koji Mukai
Abstract	GW Lib is a dwarf nova with only two known outbursts (1983 and 2007). In theXMM-Newton observation in quiescence, it was a faint (<10e29 erg/s) andrelatively soft X-ray source with a strong oxygen line. During and shortly afterthe 2007 outburst, it was significantly more X-ray luminous with no obvioussigns of a strong oxygen line. A decade after the 2007 outburst, GW Lib issecurely back in quiescence, when the disk instability model predicts very a lowaccretion rate. GW Lib is also the prototype of dwarf novae with non-radialpulsations of the white dwarf, and it will be in the field of view of K2campaign 15 (2017 Aug 23-Nov 20). We propose a new XMM-Newton observation toprobe how and at what rate the white dwarf is accreting, while also studying its pulsation properties.
Publications	The XMM-Newton Line Emission Analysis Program (X-LEAP). I. Emission-line Survey of O VII, O VIII, and Fe L-shell Transitions \|Pan, Zeyang, Qu, Zhijie, et al. \| ApJS \| 271-62 \| 2024 \| 2024ApJS..271...62P \| http://ui.adsabs.harvard.edu/#abs/2024ApJS..271...62P From Active Stars to Black Holes: A Discovery Tool for Galactic X-Ray Sources \|Rodriguez, Antonio C., \| PASP \| 136-054201 \| 2024 \| 2024PASP..136e4201R \| http://ui.adsabs.harvard.edu/#abs/2024PASP..136e4201R
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2018-02-17T05:46:41Z/2018-02-17T21:36:41Z
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	2019-03-06T23:00:00Z
Keywords	"outburst 1983", "radial pulsations", "XMM", "oxygen line", "xray luminous", "k2 campaign", "10e29 erg", "2017 aug", "gw librae", "white dwarf", "pulsation properties", "dwarf novae", "XMM-Newton", "dwarf nova", "2007 outburst", "gw lib", "low accretion rate", "xmm newton"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Koji Mukai, 2019, 'Accretion and Pulsations in GW Librae 10 years after its 2007 outburst', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-tm5883l