A dataset provided by the European Space Agency

Name: THE CANONICAL SHORT PERIOD COLLIDING WIND BINARY V444 CYGNI
Published: 2005-12-03T00:00:00Z

Proposal ID	020624
Title	THE CANONICAL SHORT PERIOD COLLIDING WIND BINARY V444 CYGNI
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0206240201 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0206240301 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0206240401 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0206240501 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0206240701 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0206240801
DOI	https://doi.org/10.5270/esa-j32y5eo
Principal Investigator, PI	Dr JULIAN PITTARD
Abstract	We propose to observe the archetypical short-period colliding winds binary V444Cygni (HD 193576) with XMM-Newton. V444 Cyg consists of a Wolf-Rayet (WR) starwith an OB companion (WN5+O6), in a 4.2 day orbit. It is one of the best studiedearly-type binary systems and is the brightest eclipsing WR + O-star binary.Previous ROSAT and ASCA observations show continuous and complicated X-rayvariability with eclipses when each star passes in front of the other. Therequested phase constrained observations will provide stringent testing ofcolliding wind models, will determine the importance of anticipated physicalmechanisms such as radiative braking, and will more generally examine theformation of X-rays in hot star winds.
Publications	X-ray emission characteristics of two Wolf-Rayet binaries: V444 Cyg and CD Cru \|Bhatt, Himali, Pandey, J. C., et al. \| MNRAS \| 402-1767 \| 2010 \| 2010MNRAS.402.1767B \| http://ui.adsabs.harvard.edu/#abs/2010MNRAS.402.1767B 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 X-rays from colliding stellar winds: the case of close Wolf-Rayet+O binary systems \|Zhekov, Svetozar A., \| MNRAS \| 422-1332 \| 2012 \| 2012MNRAS.422.1332Z \| http://ui.adsabs.harvard.edu/#abs/2012MNRAS.422.1332Z 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 A new search strategy for microquasar candidates using NVSS/2MASS and XMM-Newton data \|Combi, J. A., Albacete-Colombo, J. F., \| A&A \| 477-125 \| 2008 \| 2008A&A...477..125C \| http://ui.adsabs.harvard.edu/#abs/2008A&A...477..125C A Search for New Galactic Magnetars in Archival Chandra and XMM-Newton Observations \|Muno, M. P., Gaensler, B. M., et al. \| ApJ \| 680-639 \| 2008 \| 2008ApJ...680..639M \| http://ui.adsabs.harvard.edu/#abs/2008ApJ...680..639M The X-ray emission of the colliding wind binary V444 Cyg \|Fauchez, Thomas, De Becker, Michael, \| BSRSL \| 80-673 \| 2011 \| 2011BSRSL..80..673F \| http://ui.adsabs.harvard.edu/#abs/2011BSRSL..80..673F 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 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 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 Hot stars observed by XMM-Newton. I. The catalog and the properties of OB stars \|Naze, Y., \| A&A \| 506-1055 \| 2009 \| 2009A&A...506.1055N \| http://ui.adsabs.harvard.edu/#abs/2009A&A...506.1055N X-ray Observations of Eight Young Open Star Clusters: I. Membership and X-ray Luminosity \|Bhatt, Himali, Pandey, J. C., et al. \| JApA \| 34-393 \| 2013 \| 2013JApA...34..393B \| http://ui.adsabs.harvard.edu/#abs/2013JApA...34..393B 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 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 Sunyaev-Zel.dovich 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 The XMM-Newton serendipitous survey. VIII. The first XMM-Newton serendipitous source catalogue from overlapping observations \|Traulsen, I., Schwope, A. D., et al. \| A&A \| 624-77 \| 2019 \| 2019A&A...624A..77T \| http://ui.adsabs.harvard.edu/#abs/2019A&A...624A..77T 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 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	2004-05-19T12:12:43Z/2004-10-28T04:56:40Z
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	2005-12-03T00:00:00Z
Keywords	"star binary", "radiative braking", "complicated xray variability", "requested phase constrained", "XMM", "ob companion wn5", "star passes", "HD 193576", "hot star winds", "v444 cyg consists", "XMM-Newton", "anticipated physical mechanisms", "brightest eclipsing wr", "colliding wind models", "stringent testing", "ROSAT", "type binary systems", "xmm newton"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr JULIAN PITTARD, 2005, 'THE CANONICAL SHORT PERIOD COLLIDING WIND BINARY V444 CYGNI', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-j32y5eo