A dataset provided by the European Space Agency

Proposal ID 074346
Title An X-ray survey of ultra-active planet hosts
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DOI https://doi.org/10.5270/esa-wd35q25
Principal Investigator, PI Prof Jurgen Schmitt
Abstract We propose to obtain snapshot observations of a sample of ultra-active planethosts. The sample is complete in that it comprises all known transiting systems(not observed/proposed) within 250 pc, orbital periods below 10 days and strongactivity as photometric variations in excess of 1% and/or Ca II emission; thesample does include all suitable objects detected by Kepler. The sensitivity ofthe proposed XMM-Newton observations allows the detection of stars with X-rayluminosities in excess of 10^29 erg/sec. Because of the proximity to their hoststhese planets are the prime candidates for the process of planetary atmosphericevaporation through hydrodynamic blow-off. With our study we establish thehosts high-energy properties and pave the way for meaningful follow-up studies.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2014-07-10T12:21:46Z/2014-10-22T00:54:23Z
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 2015-11-04T23:00:00Z
Last Update 2025-01-27
Keywords "photometric variations", "orbital periods", "xmm newton", "XMM-Newton", "xray luminosities", "transiting systems", "suitable objects", "XMM", "hydrodynamic blow", "xray survey", "energy properties", "prime candidates", "ca ii emission", "planetary atmospheric evaporation"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Prof Jurgen Schmitt, 2015, 'An X-ray survey of ultra-active planet hosts', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-wd35q25