A dataset provided by the European Space Agency

Name: High-accretion rate polars - Caught in the act!
Published: 2008-03-06T00:00:00Z

Proposal ID	040552
Title	High-accretion rate polars - Caught in the act!
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0405520301
DOI	https://doi.org/10.5270/esa-qn0zef6
Principal Investigator, PI	Dr Axel Schwope
Abstract	The spectral components of polars -- strongly magnetic CVs -- were barelydisentangled by previous X-ray missions. The physics of accretion in a stronglymagnetic, non-relativistic environment is therefore still puzzling. XMM-Newton,in principle, can solve the riddle. Even after 5 years in the mission, it wasimpossible to observe one of the bright, classical polars in a high accretionstate. We propose a triggered observation of such a system. We will investigatethe physics of the hard X-ray emitting shock, the heated accretion pole cap, theatmosphere of the white dwarf, the absorption in the shock and in the flow, thereflection from the white dwarf by phase-resolved CCD- and RGS-spectroscopy andby high-speed OM-photometry.
Publications	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 Classification of X-Ray Sources in the XMM-Newton Serendipitous Source Catalog \|Lin Dacheng Webb Natalie A. \| ApJ \| 756-27 \| 2012 \| 2012ApJ...756...27L \| http://ui.adsabs.harvard.edu/#abs/2012ApJ...756...27L 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 The diversity of quasars unified by accretion and orientation \|Shen Yue Ho Luis C. \| Natur \| 513-210 \| 2014 \| 2014Natur.513..210S \| http://ui.adsabs.harvard.edu/#abs/2014Natur.513..210S 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 Quasi-periodic oscillations in accreting magnetic white dwarfs. I. Observational constraints in X-ray and optical \|Bonnet-Bidaud J. M. Mouchet M. et al. \| A&A \| 579-24 \| 2015 \| 2015A&A...579A..24B \| http://ui.adsabs.harvard.edu/#abs/2015A&A...579A..24B Revealing the broad iron Kalpha line in Cygnus X-1 through simultaneous XMM-Newton RXTE and INTEGRAL observations \|Duro Refiz Dauser Thomas et al. \| A&A \| 589-14 \| 2016 \| 2016A&A...589A..14D \| http://ui.adsabs.harvard.edu/#abs/2016A&A...589A..14D 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 Numerical simulations of high-energy flows in accreting magnetic white dwarfs \|Van Box Som Lucile Falize E. et al. \| MNRAS \| 473-3158 \| 2018 \| 2018MNRAS.473.3158V \| http://ui.adsabs.harvard.edu/#abs/2018MNRAS.473.3158V 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 Multiwavelength Properties of the Newly Discovered Dwarf Nova ASASSN-21kt \|Bandeira Victor Lopes de Oliveira Raimundo et al. \| RNAAS \| 5-182 \| 2021 \| 2021RNAAS...5..182B \| http://ui.adsabs.harvard.edu/#abs/2021RNAAS...5..182B 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	2007-01-30T11:31:06Z/2007-01-30T23:59:43Z
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	2008-03-06T00:00:00Z
Last Update	2025-01-27
Keywords	"barely disentangled", "spectral components", "xray missions", "xmm newton", "magnetic cvs", "classical polars", "XMM-Newton", "phase resolved ccd", "XMM", "rgs spectroscopy", "act !.", "white dwarf", "speed om photometry"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Axel Schwope, 2008, 'High-accretion rate polars - Caught in the act!', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-qn0zef6