A dataset provided by the European Space Agency

Name: What Can Old Stars Tell Us About The Lives They Led? A Survey of Praesepe
Published: 2014-11-15T00:00:00Z

Proposal ID	072162
Title	What Can Old Stars Tell Us About The Lives They Led? A Survey of Praesepe
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0721620101
DOI	https://doi.org/10.5270/esa-02l86n2
Principal Investigator, PI	Prof Marcel Agueros
Abstract	Measuring stellar rotation periods (Prot) and coronal and chromospheric emissionin older open clusters is challenging, but essential to calibrate theage-activity-rotation relation that governs the evolution of low-mass andsolar-mass stars. We propose 60 ksec observations of three fields in the old(~600 Myr) Praesepe open cluster. These observations will double the overallnumber of X-ray-detected cluster members and of detected members with measuredProt. These detections will a) calibrate LX as an age estimator for field stars;b) establish the dependence of (unsaturated) LX on Rossby number for old, slowlyrotating stars; and c) combined with optical spectra, determine if chromosphericand coronal emission transition into the saturated regime at the same threshold.
Publications	XMM-Newton publication statistics \|Ness J.-U. Parmar A. N. et al. \| AN \| 335-210 \| 2014 \| 2014AN....335..210N \| http://ui.adsabs.harvard.edu/#abs/2014AN....335..210N 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 AGN spectral states from simultaneous UV and X-ray observations by XMM-Newton \|Svoboda J. Guainazzi M. \| A&A \| 603-127 \| 2017 \| 2017A&A...603A.127S \| http://ui.adsabs.harvard.edu/#abs/2017A&A...603A.127S 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 strongly irradiated planets in Praesepe \|King George W. Wheatley Peter J. et al. \| MNRAS \| 512-41 \| 2022 \| 2022MNRAS.512...41K \| http://ui.adsabs.harvard.edu/#abs/2022MNRAS.512...41K The Factory and the Beehive. IV. A Comprehensive Study of the Rotation X-Ray Activity Relation in Praesepe and the Hyades \|Nu00fau00f1ez Alejandro Agu00fceros Marcel A. et al. \| ApJ \| 931-45 \| 2022 \| 2022ApJ...931...45N \| http://ui.adsabs.harvard.edu/#abs/2022ApJ...931...45N 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	2013-10-30T10:52:35Z/2013-10-31T06:49:15Z
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	2014-11-15T00:00:00Z
Last Update	2025-01-27
Keywords	"slowly rotating stars", "chromospheric emission", "field stars", "unsaturated lx", "calibrate lx", "age estimator", "myr praesepe", "optical spectra", "saturated regime", "low mass", "coronal emission transition", "solar mass stars", "stars tell"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Prof Marcel Agueros, 2014, 'What Can Old Stars Tell Us About The Lives They Led? A Survey of Praesepe', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-02l86n2