A dataset provided by the European Space Agency

Name: Completing The Census Of Activity And Rotation At 600 Myr With Praesepe
Published: 2016-04-24T22:00:00Z

Proposal ID	074257
Title	Completing The Census Of Activity And Rotation At 600 Myr With Praesepe
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0742570101
DOI	https://doi.org/10.5270/esa-spsk3rc
Principal Investigator, PI	Prof Marcel Agueros
Abstract	The relationship between stellar age, magnetic activity, and rotation has beencharacterized mainly from observations of <500-Myr-old open clusters.Investigations of stellar rotation and activity have also revealed the presenceof a saturation threshold where magnetic activity no longer correlates withRossby number. Measuring rotation periods and tracers of magnetic activity inolder open clusters is difficult, but essential to calibrating and understandingthe age-activity-rotation relation. We propose two 60 ksec observations thatwill complete our census of the virgul600 Myr open cluster Praesepe. Combining thesedata with our >550 optical spectra of Praesepe, we will test the coronalstripping model of saturation, while calibrating LX as an age estimator for field stars.
Publications	The composite X-ray spectra of radio-loud and radio-quiet SDSS quasars \|Zhou, Min-Hua, Gu, Min-Feng, \| RAA \| 21-4 \| 2021 \| 2021RAA....21....4Z \| http://ui.adsabs.harvard.edu/#abs/2021RAA....21....4Z 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 X\\u2011HESS: A large sample of highly accreting serendipitous AGN under the XMM\\u2011Newton microscope \|Laurenti, M., Tombesi, F., et al. \| AN \| 344-20230053 \| 2023 \| 2023AN....34430053L \| http://ui.adsabs.harvard.edu/#abs/2023AN....34430053L 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
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2015-04-09T20:33:18Z/2015-04-10T14:28:18Z
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	2016-04-24T22:00:00Z
Keywords	"optical spectra", "age estimator", "rotation periods", "stellar age", "stellar rotation", "characterized mainly", "field stars", "saturation threshold", "magnetic activity", "calibrating lx"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Prof Marcel Agueros, 2016, 'Completing The Census Of Activity And Rotation At 600 Myr With Praesepe', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-spsk3rc