A dataset provided by the European Space Agency

Name: The Wind-Wind Interaction Region and Stellar Wind Geometry of V444 Cyg
Published: 2013-07-06T00:00:00Z
License: https://creativecommons.org/licenses/by-nc/3.0/igo

Proposal ID	069281
Title	The Wind-Wind Interaction Region and Stellar Wind Geometry of V444 Cyg
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0692810301 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0692810401 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0692810501 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0692810601
DOI	https://doi.org/10.5270/esa-yzg1qo2
Principal Investigator, PI	Ms Jamie Lomax
Abstract	Angular momentum and mass loss from massive binary star systems is poorlyconstrained; however, eclipsing colliding-wind systems provide usefullaboratories in which to study these processes. V444 Cyg is a bright, WN5+O6colliding-wind system that shows different eclipse behaviors in the hard andsoft X-rays. We ask for XMM-Newton observations that, combined with opticalspectropolarimetric observations, will significantly improve our understandingof the 3D structure of the winds and wind-wind collision region in V444 Cyg.
Publications	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 V444 Cygni X-ray and polarimetric variability: Radiative and Coriolis forces shape the wind collision region \|Lomax J. R. Naze Y. et al. \| A&A \| 573-43 \| 2015 \| 2015A&A...573A..43L \| http://ui.adsabs.harvard.edu/#abs/2015A&A...573A..43L 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 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 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 New 511 keV Line Data Provide Strongest sub-GeV Dark Matter Constraints \|De la Torre Luque Pedro Balaji Shyam \| ApJ \| 973-L6 \| 2024 \| 2024ApJ...973L...6D \| http://ui.adsabs.harvard.edu/#abs/2024ApJ...973L...6D
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2012-05-05T20:43:34Z/2012-06-15T04:45:44Z
Version	21.51_20241115_1113
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	2013-07-06T00:00:00Z
Last Update	2026-07-09
Keywords	"mass loss", "angular momentum", "poorly constrained", "optical spectropolarimetric", "XMM-Newton", "3d structure", "XMM", "eclipse behaviors", "useful laboratories", "v444 cyg", "soft xray", "stellar wind geometry", "xmm newton"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Ms Jamie Lomax, 2013, 'The Wind-Wind Interaction Region and Stellar Wind Geometry of V444 Cyg', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-yzg1qo2
Rights	Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license.