A dataset provided by the European Space Agency

Proposal ID 011153
Title GT Observations of Active Cool Stars: EK Dra
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0111530101
DOI https://doi.org/10.5270/esa-7244fx7
Principal Investigator, PI Dr Albert Brinkman
Abstract GT-EK Dra is the youngest, easily accessible solar analog, with an age of about100 Myr and a rotation velocity ten times the Sun.s. Its X-ray luminosity isabout 500 times the Sun.s, with frequent flares in the light curve. This targetis part of a study on the Sun in Time. in which we investigate the decline ofcoronal activity of a solar analog with time. Important aspects concern theemission measure distribution, the abundance pattern that might be activitydependent, and flare variability studies with respect to temperatures,abundances, densities, and mass motions. The pn camera will be used in SMLwindow mode with thick filter, while one MOS will use TIMING mode/medium filter to optimize detection of soft photons. The OM will be operated with the UVW2 filter.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2000-12-30T14:01:58Z/2000-12-31T05:17:04Z
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 2002-08-09T00:00:00Z
Keywords "uvw2 filter", "abundance pattern", "aspects concern", "xray luminosity", "active cool stars", "medium filter", "soft photons", "solar analog", "light curve", "ek dra", "pn camera", "coronal activity", "thick filter", "flare variability", "optimize detection", "mass motions", "sml window mode", "rotation velocity", "activity dependent", "frequent flare"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Albert Brinkman, 2002, 'GT Observations of Active Cool Stars: EK Dra', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-7244fx7