A dataset provided by the European Space Agency

Name: X-ray investigation of the first gamma-ray emitter associated with a WR star
Published: 2009-06-06T00:00:00Z

Proposal ID	050553
Title	X-ray investigation of the first gamma-ray emitter associated with a WR star
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0505530101 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0505530201
DOI	https://doi.org/10.5270/esa-df7hryl
Principal Investigator, PI	Mr Jean-Christophe Leyder
Abstract	A systematic search for hard X-ray and soft gamma-ray emission from Wolf-Rayet(WR) stars, performed using the ISGRI imager, led to the detection of WR 115(26-51 keV). This high-energy emission is expected to be produced by non-thermalrelativistic particles, through several possible mechanisms. However, it isstill unknown which of these proposed mechanisms is responsible for the observedemission, and whether the corresponding X-ray emission is of a thermal ornon-thermal origin. Therefore, we propose to observe this first gamma-rayemitter associated with a WR+O system. These observations of WR 115 withXMM-Newton will help to confirm the origin of the emission seen at higherenergies, and to pinpoint the emission mechanisms thanks to a thorough analysis of its X-ray spectrum.
Publications	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 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 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 The Chandra ACIS Timing Survey Project: glimpsing a sample of faint X-ray pulsators \|Israel G. L. Esposito P. et al. \| MNRAS \| 462-4371 \| 2016 \| 2016MNRAS.462.4371I \| http://ui.adsabs.harvard.edu/#abs/2016MNRAS.462.4371I 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 Exploring the end states of massive stars using the X-ray emission of neutron stars and supernova remnants \|Prinz Tobias \| PhDT \| 0-305 \| 2013 \| 2013PhDT.......305P \| http://ui.adsabs.harvard.edu/#abs/2013PhDT.......305P Contribution of a Non-Thermal Component to the X-Ray Emission of OB Stars \|Ryspaeva E. B. Kholtygin A. F. \| AstBu \| 75-127 \| 2020 \| 2020AstBu..75..127R \| http://ui.adsabs.harvard.edu/#abs/2020AstBu..75..127R 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 4XMM J182531.5u2212144036: A new persistent Be/X-ray binary found within the XMM-Newton serendipitous survey \|Mason A. B. Norton A. J. et al. \| PASA \| 41-e008 \| 2024 \| 2024PASA...41....8M \| http://ui.adsabs.harvard.edu/#abs/2024PASA...41....8M 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	2008-04-10T11:43:50Z/2008-04-11T04:13:48Z
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	2009-06-06T00:00:00Z
Last Update	2025-01-27
Keywords	"x ray investigation", "nonthermal origin", "isgri imager", "wr star", "gamma ray emitter", "systematic search", "xmm newton", "hard xray", "XMM-Newton", "energy emission", "xray emission", "wr 115", "nonthermal relativistic particles", "XMM", "xray spectrum", "thorough analysis"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Mr Jean-Christophe Leyder, 2009, 'X-ray investigation of the first gamma-ray emitter associated with a WR star', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-df7hryl