A dataset provided by the European Space Agency

Name: Magnetic Flux and Coronal X-ray Emission in the Late Stages of Stellar Evolution
Published: 2017-11-11T23:00:00Z

Proposal ID	078207
Title	Magnetic Flux and Coronal X-ray Emission in the Late Stages of Stellar Evolution
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0782070101 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0782070201 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0782070301
DOI	https://doi.org/10.5270/esa-4vrmpoe
Principal Investigator, PI	Dr Rodolfo Montez
Abstract	Surface magnetic fields strengths of 2-10 G have been measured from the evolvedstars chi Cyg and U Mon. These measurements support the notion that large-scalemagnetic fields thread the circumstellar environment of asymptotic giant branch(AGB) and post-AGB stars. Magnetic fields are possible triggers of the superwindphase of AGB stars and asymmetric shaping of mass loss into the post-AGB phase.The low surface magnetic field strengths imply X-ray fluxes that are withinreach of deep XMM exposures. We propose XMM X-ray observations of these twoevolved stars to detect their predicted low level X-ray emission and establish acoronal origin for any X-ray emission. Ultimately, these observations provideinsight into the evolution of stellar magnetic processes.
Publications	Multiwavelength Observations of the RV Tauri Variable System U Monocerotis: Long-term Variability Phenomena That Can Be Explained by Binary Interactions with a Circumbinary Disk \|Vega Laura D. Stassun Keivan G. et al. \| ApJ \| 909-138 \| 2021 \| 2021ApJ...909..138V \| http://ui.adsabs.harvard.edu/#abs/2021ApJ...909..138V 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	2016-05-04T12:04:29Z/2016-10-24T04:20:06Z
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	2017-11-11T23:00:00Z
Last Update	2025-01-27
Keywords	"mass loss", "measurements support", "coronal xray emission", "superwind phase", "agb stars", "magnetic fields", "post agb stars", "xray emission", "post agb phase", "magnetic flux", "stellar magnetic processes", "xray fluxes", "late stages", "deep xmm", "evolved stars", "asymmetric shaping", "xmm xray", "coronal origin", "stellar evolution", "XMM"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Rodolfo Montez, 2017, 'Magnetic Flux and Coronal X-ray Emission in the Late Stages of Stellar Evolution', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-4vrmpoe