A dataset provided by the European Space Agency

Name: COLLIDING WIND X-RAY EMISSION FROM THE MASSIVE BINARY WR140 AROUND PERIASTRON
Published: 2018-01-19T23:00:00Z
License: https://creativecommons.org/licenses/by-nc/3.0/igo

Proposal ID	079085
Title	COLLIDING WIND X-RAY EMISSION FROM THE MASSIVE BINARY WR140 AROUND PERIASTRON
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0790850101 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0790850201
DOI	https://doi.org/10.5270/esa-m913cro
Principal Investigator, PI	Dr Kenji Hamaguchi
Abstract	The wind-wind collision (WWC) in eccentric massive binary systems producespredictably variable shock-heated X-ray plasma. This collision provides an ideallaboratory for shock astrophysics, providing key constraints on how gasthermalizes at variable density and on particle acceleration. Joint NuSTAR andXMM-Newton observation of WR 140 in AO14 discovered an extremely hard X-raycomponent, which can originate either from a kT ~13 keV plasma orinverse-Compton scattering. WR 140 will experience its periastron passage in2016 Dec., a critical time when the WWC emission changes dramatically. Wepropose joint NuSTAR and XMM-Newton observations of WR 140 at key phases aroundperiastron in AO15, to determine the origin of this component and answer questions about the abrupt X-ray flux decrease.
Publications	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 Competitive X-Ray and Optical Cooling in the Collisionless Shocks of WR 140 \|Pollock A. M. T. Corcoran M. F. et al. \| ApJ \| 923-191 \| 2021 \| 2021ApJ...923..191P \| http://ui.adsabs.harvard.edu/#abs/2021ApJ...923..191P 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	2016-12-04T05:54:25Z/2016-12-26T11:10:00Z
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	2018-01-19T23:00:00Z
Last Update	2026-06-19
Keywords	"", "periastron passage", "kev plasma", "hard xray component", "XMM-Newton", "wr 140", "wwc emission", "key phases", "particle acceleration", "xmm newton", "massive binary wr140", "key constraints", "XMM", "gas thermalizes", "NuSTAR", "variable density", "ideal laboratory", "2016 dec .", "shock astrophysics", "inverse compton scattering"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Kenji Hamaguchi, 2018, 'COLLIDING WIND X-RAY EMISSION FROM THE MASSIVE BINARY WR140 AROUND PERIASTRON', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-m913cro
Rights	Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license.