A dataset provided by the European Space Agency

Name: Calibrating the time-evolution of the high-energy emission of M stars
Published: 2019-01-29T23:00:00Z

Proposal ID	080005
Title	Calibrating the time-evolution of the high-energy emission of M stars
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0800050101
DOI	https://doi.org/10.5270/esa-o0r4cto
Principal Investigator, PI	Dr Beate Stelzer
Abstract	We aim at the detection of the quiescent X-ray emission from the M dwarfLP617-34, as invaluable calibration point for the activity-age relation of Mdwarfs at the faint/old end. Analogous to our previous targets, LP617-34 is awide companion to a white dwarf (WD), and we infer the age of the M dwarf (7.7Gyr) from the progenitor and cooling age of the WD. Our target is the oldestknown of such systems, and the only remaining one at >5Gyr that can be resolvedwith XMM-Newton (separation ~ 22). Transient X-ray emission was detected fromthe M dwarf during an XMM-Newton slew but its quiescent emission is required toconstrain the activity - age relation, which is key for understanding stellardynamos and the irradiation of planet atmospheres with high-energy photons.
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 Dynamical state of galaxy clusters evaluated from X-ray images \|Yuan Z. S. Han J. L. \| MNRAS \| 513-3013 \| 2022 \| 2022MNRAS.513.3013Y \| http://ui.adsabs.harvard.edu/#abs/2022MNRAS.513.3013Y 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 Search for Young Stellar Objects within 4XMM-DR13 Using CatBoost and SPE \|Ma Xiangyao Zhang Yanxia et al. \| AJ \| 168-210 \| 2024 \| 2024AJ....168..210M \| http://ui.adsabs.harvard.edu/#abs/2024AJ....168..210M
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2018-01-12T06:02:40Z/2018-01-12T19:47:18Z
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	2019-01-29T23:00:00Z
Last Update	2025-08-04
Keywords	"XMM", "quiescent xray emission", "energy photons", "planet atmosphere", "XMM-Newton", "white dwarf wd", "wide companion", "invaluable calibration", "energy emission", "time evolution", "dwarf lp617", "xmm newton slew", "xmm newton separation", "activity age relation", "transient xray emission", "cooling age", "stellar dynamos", "quiescent emission"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Beate Stelzer, 2019, 'Calibrating the time-evolution of the high-energy emission of M stars', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-o0r4cto