A dataset provided by the European Space Agency

Name: HD 109962: the Most Massive Dwarf Nova?
Published: 2008-07-20T00:00:00Z

Proposal ID	050044
Title	HD 109962: the Most Massive Dwarf Nova?
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0500440101
DOI	https://doi.org/10.5270/esa-1tfcekw
Principal Investigator, PI	Prof Frederick M Walter
Abstract	HD 109962, a bright F2 star and an ellipsoidal variable, is arecently-recognized erupting variable star. Fairly regular outbursts over thepast 5 years suggest it is a dwarf nova. Spectra during the Jan 2006 outburstrevealed strong He II 4686 emission, and the residual spectrum (outburst - postoutburst) is that of an accretion disk. The large mass function suggests a totalsystem mass of about 2.3 solar masses, making this one of the most massive dwarfnovae known. The radial velocity curve of the primary suggests either aneccentric orbit or shadowing by an asymmetric disk. Both possibilities areinteresting. We propose to observe for one binary orbit (80 ksec) to study thequiescent X-ray emission, study the orbital modulation of the X-ray flux, and look for an X-ray eclipse
Publications	Exospheric solar wind charge exchange as seen by XMM-Newton \|Carter J. A. Semba S. \| AN \| 333-313 \| 2012 \| 2012AN....333..313C \| http://ui.adsabs.harvard.edu/#abs/2012AN....333..313C An XMM-Newton Survey of the Soft X-Ray Background. II. An All-Sky Catalog of Diffuse O VII and O VIII Emission Intensities \|Henley David B. Shelton Robin L. \| ApJS \| 202-14 \| 2012 \| 2012ApJS..202...14H \| http://ui.adsabs.harvard.edu/#abs/2012ApJS..202...14H The Interaction of the Fermi Bubbles with the Milky Ways Hot Gas Halo \|Miller Matthew J. Bregman Joel N. \| ApJ \| 829-9 \| 2016 \| 2016ApJ...829....9M \| http://ui.adsabs.harvard.edu/#abs/2016ApJ...829....9M The Million Optical - Radio/X-ray Associations (MORX) Catalogue \|Flesch Eric W. \| PASA \| 33-52 \| 2016 \| 2016PASA...33...52F \| http://ui.adsabs.harvard.edu/#abs/2016PASA...33...52F The EXOD search for faint transients in XMM-Newton observations: Method and discovery of four extragalactic Type I X-ray bursters \|Pastor-Marazuela I. Webb N. A. et al. \| A&A \| 640-124 \| 2020 \| 2020A&A...640A.124P \| http://ui.adsabs.harvard.edu/#abs/2020A&A...640A.124P An X-Ray- and SZ-bright Diffuse Source toward M31: A Local Hot Bridge \|Qu Zhijie Huang Rui et al. \| ApJ \| 907-14 \| 2021 \| 2021ApJ...907...14Q \| http://ui.adsabs.harvard.edu/#abs/2021ApJ...907...14Q Classification of 4XMM-DR9 sources by machine learning \|Zhang Yanxia Zhao Yongheng \| MNRAS \| 503-5263 \| 2021 \| 2021MNRAS.503.5263Z \| http://ui.adsabs.harvard.edu/#abs/2021MNRAS.503.5263Z The Solar Cycle Temporal Variation of the Solar Wind Charge Exchange X-Ray Lines \|Qu Zhijie Koutroumpa Dimitra et al. \| ApJ \| 930-21 \| 2022 \| 2022ApJ...930...21Q \| http://ui.adsabs.harvard.edu/#abs/2022ApJ...930...21Q A Study on White Dwarf Masses in Cataclysmic Variables Based on XMM-Newton and Suzaku Observations \|Yu Zhuo-Li Xu Xiao-Jie \| RAA \| 22-45003 \| 2022 \| 2022RAA....22d5003Y \| http://ui.adsabs.harvard.edu/#abs/2022RAA....22d5003Y 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 Robust constraints on feebly interacting particles using XMM-Newton \|Luque Pedro De la Torre Balaji Shyam \| PhRvD \| 109-L101305 \| 2024 \| 2024PhRvD.109j1305L \| http://ui.adsabs.harvard.edu/#abs/2024PhRvD.109j1305L Multimessenger search for electrophilic feebly interacting particles from supernovae \|Luque Pedro De la Torre Balaji Shyam \| PhRvD \| 109-103028 \| 2024 \| 2024PhRvD.109j3028L \| http://ui.adsabs.harvard.edu/#abs/2024PhRvD.109j3028L Importance of Cosmic-Ray Propagation on Sub-GeV Dark Matter Constraints \|De la Torre Luque Pedro Balaji Shyam \| ApJ \| 968-46 \| 2024 \| 2024ApJ...968...46D \| http://ui.adsabs.harvard.edu/#abs/2024ApJ...968...46D
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2007-06-28T07:15:28Z/2007-06-29T07:23:39Z
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	2008-07-20T00:00:00Z
Last Update	2025-01-27
Keywords	"eccentric orbit", "quiescent xray emission", "fairly regular outburst", "asymmetric disk", "dwarf nova", "binary orbit", "radial velocity curve", "orbital modulation", "jan 2006 outburst", "accretion disk", "solar masses", "massive dwarf novae", "mass function", "HD 109962", "xray flux", "hd 109962", "total system mass", "xray eclipse", "ellipsoidal variable", "bright f2 star", "ii 4686 emission"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Prof Frederick M Walter, 2008, 'HD 109962: the Most Massive Dwarf Nova?', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-1tfcekw