A dataset provided by the European Space Agency

Name: WZ Sagittae in Quiescence: Magnetic or Pulsating White Dwarf
Published: 2004-05-31T00:00:00Z

Proposal ID	015010
Title	WZ Sagittae in Quiescence: Magnetic or Pulsating White Dwarf
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0150100101
DOI	https://doi.org/10.5270/esa-ym32j77
Principal Investigator, PI	Dr Koji Mukai
Abstract	WZ Sagittae is the prototype of a subclass of dwarf novae with extremelylong recurrence period. We dont understand yet how to keep WZ Sge inquiescence for 30 years, unless it has a magnetic white dwarf. Thisseems likely, since there is a 27.87 s periodicity in the optical, UV,and probably in ASCA data. However, the ASCA detection wasnt asconvincing as we had hoped. Moreover, there are other periodic signalsnear 28 s, which the magnetic white dwarf model struggles to explain,leading to the advent of the pulsating white dwarf model. We proposemultiple XMM-Newton pointings to distinguish between these two models.
Publications	The XMM-Newton serendipitous survey. V. The Second XMM-Newton serendipitous source catalogue \|Watson M. G. Schroder A. C. et al. \| A&A \| 493-339 \| 2009 \| 2009A&A...493..339W \| http://ui.adsabs.harvard.edu/#abs/2009A&A...493..339W Statistical evaluation of the flux cross-calibration of the XMM-Newton EPIC cameras \|Mateos S. Saxton R. D. et al. \| A&A \| 496-879 \| 2009 \| 2009A&A...496..879M \| http://ui.adsabs.harvard.edu/#abs/2009A&A...496..879M The XMM Cluster Survey: optical analysis methodology and the first data release \|Mehrtens Nicola Romer A. Kathy et al. \| MNRAS \| 423-1024 \| 2012 \| 2012MNRAS.423.1024M \| http://ui.adsabs.harvard.edu/#abs/2012MNRAS.423.1024M Wavelet and R/S analysis of the X-ray flickering of cataclysmic variables \|Anzolin G. Tamburini F. et al. \| A&A \| 519-69 \| 2010 \| 2010A&A...519A..69A \| http://ui.adsabs.harvard.edu/#abs/2010A&A...519A..69A An All-Sky Atlas of Radio/X-ray Associations \|Flesch E. \| PASA \| 27-283 \| 2010 \| 2010PASA...27..283F \| http://ui.adsabs.harvard.edu/#abs/2010PASA...27..283F The XMM Cluster Survey: X-ray analysis methodology \|Lloyd-Davies E. J. Romer A. Kathy et al. \| MNRAS \| 418-14 \| 2011 \| 2011MNRAS.418...14L \| http://ui.adsabs.harvard.edu/#abs/2011MNRAS.418...14L The XMM-Newton serendipitous ultraviolet source survey catalogue \|Page M. J. Brindle C. et al. \| MNRAS \| 426-903 \| 2012 \| 2012MNRAS.426..903P \| http://ui.adsabs.harvard.edu/#abs/2012MNRAS.426..903P Automatic Classification of Time-variable X-Ray Sources \|Lo Kitty K. Farrell Sean et al. \| ApJ \| 786-20 \| 2014 \| 2014ApJ...786...20L \| http://ui.adsabs.harvard.edu/#abs/2014ApJ...786...20L XMM-Newton and Swift observations of WZ Sagittae: spectral and timing analysis \|Nucita A. A. Kuulkers E. et al. \| A&A \| 566-121 \| 2014 \| 2014A&A...566A.121N \| http://ui.adsabs.harvard.edu/#abs/2014A&A...566A.121N 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 \| http://ui.adsabs.harvard.edu/#abs/2014Ap&SS.354...97Y Optical counterparts of ROSAT X-ray sources in two selected fields at low vs. high Galactic latitudes \|Greiner J. Richter G. A. \| A&A \| 575-42 \| 2015 \| 2015A&A...575A..42G \| http://ui.adsabs.harvard.edu/#abs/2015A&A...575A..42G Sunyaev-Zeldovich effect or not? Detecting the main foreground effect of most galaxy clusters \|Xiao Weike Chen Chen et al. \| MNRAS \| 432-41 \| 2013 \| 2013MNRAS.432L..41X \| http://ui.adsabs.harvard.edu/#abs/2013MNRAS.432L..41X 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 Anisotropy of the galaxy cluster X-ray luminosity-temperature relation \|Migkas Konstantinos Reiprich Thomas H. \| A&A \| 611-50 \| 2018 \| 2018A&A...611A..50M \| http://ui.adsabs.harvard.edu/#abs/2018A&A...611A..50M The XMM Cluster Survey: Present status and latest results \|Viana P. T. P. Mehrtens N. et al. \| AN \| 334-462 \| 2013 \| 2013AN....334..462V \| http://ui.adsabs.harvard.edu/#abs/2013AN....334..462V Testing emergent gravity on galaxy cluster scales \|Tamosiunas Andrius Bacon David et al. \| JCAP \| 5-53 \| 2019 \| 2019JCAP...05..053T \| http://ui.adsabs.harvard.edu/#abs/2019JCAP...05..053T Chandra Follow-up of the SDSS DR8 Redmapper Catalog Using the MATCha Pipeline \|Hollowood Devon L. Jeltema Tesla et al. \| ApJS \| 244-22 \| 2019 \| 2019ApJS..244...22H \| http://ui.adsabs.harvard.edu/#abs/2019ApJS..244...22H Stellar mass as a galaxy cluster mass proxy: application to the Dark Energy Survey redMaPPer clusters \|Palmese A. Annis J. et al. \| MNRAS \| 493-4591 \| 2020 \| 2020MNRAS.493.4591P \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.493.4591P 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 A Surprising Periodicity Detected during a Super-outburst of V844 Herculis by TESS \|Greiveldinger Anousha Garnavich Peter et al. \| ApJ \| 955-150 \| 2023 \| 2023ApJ...955..150G \| http://ui.adsabs.harvard.edu/#abs/2023ApJ...955..150G 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	2003-05-16T14:52:07Z/2003-05-16T17:37:25Z
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	2004-05-31T00:00:00Z
Last Update	2025-01-27
Keywords	"magnetic white dwarf", "XMM", "periodic signals", "recurrence period", "asca data", "asca detection wasn", "XMM-Newton", "wz sge", "pulsating white dwarf", "dwarf novae", "wz sagittae"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Koji Mukai, 2004, 'WZ Sagittae in Quiescence: Magnetic or Pulsating White Dwarf', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-ym32j77