A dataset provided by the European Space Agency

Name: Disentangling the High-Energy sources in the peculiar magnetic star HD191612
Published: 2009-06-05T00:00:00Z

Proposal ID	050068
Title	Disentangling the High-Energy sources in the peculiar magnetic star HD191612
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0500680201
DOI	https://doi.org/10.5270/esa-ginwufm
Principal Investigator, PI	Dr Yael Naze
Abstract	The peculiar star HD191612 has been followed both in the visible and X-rayranges. In the visible domain, this star displays spectacular line profilevariations alternating between two different spectral states (O6-O8) with aperiod of ~538d. Observations with XMM over half this timescale have revealed anoverluminosity compared to typical O-type stars and some variations, about 30%in flux. However, the origin of the X-rays is still unclear: since a recentstudy unveiled the binarity of the star (with an orbital period of 1540d), acolliding wind phenomenon might contribute to the bright emission. To assess theorigin of the X-ray emission in this peculiar star, an additional observationwith XMM-Newton is needed.
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 An XMM-Newton Survey of the Soft X-Ray Background. II. An All-Sky Catalog of Diffuse O VII and O VIII Emission Intensities \|Henley David B. Shelton Robin L. \| ApJS \| 202-14 \| 2012 \| 2012ApJS..202...14H \| http://ui.adsabs.harvard.edu/#abs/2012ApJS..202...14H 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 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 X-Ray Emission from Magnetic Massive Stars \|Naze Yael Petit Veronique et al. \| ApJS \| 215-10 \| 2014 \| 2014ApJS..215...10N \| http://ui.adsabs.harvard.edu/#abs/2014ApJS..215...10N 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 Interaction of the Fermi Bubbles with the Milky Ways Hot Gas Halo \|Miller Matthew J. Bregman Joel N. \| ApJ \| 829-9 \| 2016 \| 2016ApJ...829....9M \| http://ui.adsabs.harvard.edu/#abs/2016ApJ...829....9M 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 Chandra View of Magnetically Confined Wind in HD191612: Theory Versus Observations \|Naze Yael ud-Doula Asif \| ApJ \| 831-138 \| 2016 \| 2016ApJ...831..138N \| http://ui.adsabs.harvard.edu/#abs/2016ApJ...831..138N New findings on the prototypical Of?p stars \|Naze Y. Ud-Doula A. et al. \| A&A \| 520-59 \| 2010 \| 2010A&A...520A..59N \| http://ui.adsabs.harvard.edu/#abs/2010A&A...520A..59N An X-Ray- and SZ-bright Diffuse Source toward M31: A Local Hot Bridge \|Qu Zhijie Huang Rui et al. \| ApJ \| 907-14 \| 2021 \| 2021ApJ...907...14Q \| http://ui.adsabs.harvard.edu/#abs/2021ApJ...907...14Q 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 The Solar Cycle Temporal Variation of the Solar Wind Charge Exchange X-Ray Lines \|Qu Zhijie Koutroumpa Dimitra et al. \| ApJ \| 930-21 \| 2022 \| 2022ApJ...930...21Q \| http://ui.adsabs.harvard.edu/#abs/2022ApJ...930...21Q 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	2008-04-02T23:43:13Z/2008-04-03T06:21:47Z
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	2009-06-05T00:00:00Z
Last Update	2025-01-27
Keywords	"xray ranges", "magnetic star hd191612", "type stars", "o6 o8", "colliding wind phenomenon", "xmm newton", "XMM-Newton", "energy sources", "orbital period", "xray emission", "HD191612", "star hd191612", "XMM", "bright emission", "visible domain"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Yael Naze, 2009, 'Disentangling the High-Energy sources in the peculiar magnetic star HD191612', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-ginwufm