A dataset provided by the European Space Agency

Name: X-ray scanning a supergiant wind-accretor: eclipse egress in Vela X-1
Published: 2009-02-08T00:00:00Z
License: https://creativecommons.org/licenses/by-nc/3.0/igo

Proposal ID	040643
Title	X-ray scanning a supergiant wind-accretor: eclipse egress in Vela X-1
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0406430201 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0406430301
DOI	https://doi.org/10.5270/esa-hnev4dv
Principal Investigator, PI	Dr Peter Kretschmar
Abstract	We propose to use one XMM-Newton orbit observing the eclipse egress and earlypost-eclipse phase of the Vela~X-1/HD~77581 binary system. We plan to useEPIC-pn CCD spectra and pulse profiles together with RGS results for emissionlines in order to study in unprecedented detail the emerging neutron starsemission and measure the scale height of the supergiants extended atmospherewith high accuracy. Small time scale variations in the observed column densitywill track clumps in the lower stellar wind.
Publications	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 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 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 The accretion environment in Vela X-1 during a flaring period using XMM-Newton \|Martinez-Nunez S. Torrejon J. M. et al. \| A&A \| 563-70 \| 2014 \| 2014A&A...563A..70M \| http://ui.adsabs.harvard.edu/#abs/2014A&A...563A..70M 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 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 Goodness of Simultaneous Fits in ISIS \|Kuhnel Matthias Falkner Sebastian et al. \| AcPol \| 56-41 \| 2016 \| 2016AcPol..56...41K \| http://ui.adsabs.harvard.edu/#abs/2016AcPol..56...41K 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 Supergiant fast X-ray transients versus classical supergiant high mass X-ray binaries: Does the difference lie in the companion wind? \|Pradhan P. Bozzo E. \| A&A \| 610-50 \| 2018 \| 2018A&A...610A..50P \| http://ui.adsabs.harvard.edu/#abs/2018A&A...610A..50P 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 High-resolution X-ray spectroscopy of the stellar wind in Vela X-1 during a flare \|Lomaeva M. Grinberg V. et al. \| A&A \| 641-144 \| 2020 \| 2020A&A...641A.144L \| http://ui.adsabs.harvard.edu/#abs/2020A&A...641A.144L Revisiting the archetypical wind accretor Vela X-1 in depth. Case study of a well-known X-ray binary and the limits of our knowledge \|Kretschmar P. El Mellah I. et al. \| A&A \| 652-95 \| 2021 \| 2021A&A...652A..95K \| http://ui.adsabs.harvard.edu/#abs/2021A&A...652A..95K 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 Detection of nearly periodic spin period reversals in Vela X-1 on long time-scales: inkling of solar-like cycle in the donor star? \|Chandra Amar Deo Roy Jayashree et al. \| MNRAS \| 508-4429 \| 2021 \| 2021MNRAS.508.4429C \| http://ui.adsabs.harvard.edu/#abs/2021MNRAS.508.4429C Discovery of a radio-emitting neutron star with an ultra-long spin period of 76 s \|Caleb Manisha Heywood Ian et al. \| NatAs \| 6-828 \| 2022 \| 2022NatAs...6..828C \| http://ui.adsabs.harvard.edu/#abs/2022NatAs...6..828C Flares during eclipses of high-mass X-ray binary systems Vela X-1 4U 1700-37 and LMC X-4 \|Rikame Ketan Paul Biswajit et al. \| MNRAS \| 529-3360 \| 2024 \| 2024MNRAS.529.3360R \| http://ui.adsabs.harvard.edu/#abs/2024MNRAS.529.3360R 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 Variable structures in the stellar wind of the HMXB Vela X-1 \|Abalo L. Kretschmar P. et al. \| A&A \| 692-A188 \| 2024 \| 2024A&A...692A.188A \| http://ui.adsabs.harvard.edu/#abs/2024A&A...692A.188A 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, RGS1, RGS2
Temporal Coverage	2006-05-25T10:30:29Z/2006-05-26T23:24:51Z
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	2009-02-08T00:00:00Z
Last Update	2026-06-19
Keywords	"EPIC", "supergiant wind accretor", "vela x", "pulse profiles", "XMM", "time scale variations", "scale height", "post eclipse phase", "eclipse egress", "emission lines", "track clumps", "lower stellar wind", "x ray scanning", "XMM-Newton", "column density", "77581 binary system", "xmm newton orbit", "emerging neutron star"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Peter Kretschmar, 2009, 'X-ray scanning a supergiant wind-accretor: eclipse egress in Vela X-1', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-hnev4dv
Rights	Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license.