A dataset provided by the European Space Agency

Name: Calibrating the time-evolution of the high-energy emissions of GKM stars
Published: 2017-01-05T23:00:00Z

Proposal ID	076038
Title	Calibrating the time-evolution of the high-energy emissions of GKM stars
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0760380101 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0760380201
DOI	https://doi.org/10.5270/esa-1o0a8mv
Principal Investigator, PI	Dr Ignasi Ribas
Abstract	The time-evolution of X-ray to UV stellar fluxes is key to understand planetaryatmospheres via effects such as photochemistry and evaporation. While the fluxevolution of solar-type stars is well understood, this is not the case of K andM stars. Our approach is to determine the variation of L_x with age for KM starsby observing wide pairs with a white dwarf that serves as a chronometer. Here weplan to nail down the typical X-ray emission level at an age of ~4 Gyr. Wepropose very deep X-ray observations of 3 M stars, reaching the lowest X-rayemission levels observed in volume-limited M dwarf samples of unknown age.Comparison with the distribution in a volume-limited sample will allow us toestimate the fraction of M dwarfs younger than 4 Gyr.
Publications	Blasts from the Past: Supernova Shock Breakouts among X-Ray Transients in the XMM-Newton Archive \|Alp Dennis Larsson Josefin \| ApJ \| 896-39 \| 2020 \| 2020ApJ...896...39A \| http://ui.adsabs.harvard.edu/#abs/2020ApJ...896...39A 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 Luminosity Function and Event Rate Density of XMM-Newton-selected Supernova Shock Breakout Candidates \|Sun Hui Liu He-Yang et al. \| ApJ \| 927-224 \| 2022 \| 2022ApJ...927..224S \| http://ui.adsabs.harvard.edu/#abs/2022ApJ...927..224S XMM-Newton-discovered Fast X-ray Transients: host galaxies and limits on contemporaneous detections of optical counterparts \|Eappachen D. Jonker P. G. et al. \| MNRAS \| 527-11823 \| 2024 \| 2024MNRAS.52711823E \| http://ui.adsabs.harvard.edu/#abs/2024MNRAS.52711823E The XMM-Newton Line Emission Analysis Program (X-LEAP). I. Emission-line Survey of O VII O VIII and Fe L-shell Transitions \|Pan Zeyang Qu Zhijie et al. \| ApJS \| 271-62 \| 2024 \| 2024ApJS..271...62P \| http://ui.adsabs.harvard.edu/#abs/2024ApJS..271...62P 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	2015-11-28T19:54:22Z/2015-12-18T01:52:58Z
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	2017-01-05T23:00:00Z
Last Update	2025-01-27
Keywords	"time evolution", "deep xray", "uv stellar fluxes", "wide pairs", "km stars", "energy emissions", "volume limited", "dwarf samples", "volume limited sample", "flux evolution", "white dwarf", "gkm stars", "solar type stars"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Ignasi Ribas, 2017, 'Calibrating the time-evolution of the high-energy emissions of GKM stars', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-1o0a8mv