| Proposal ID | 072017 |
| Title | X-raying CoRoT2a, the most active planet host-star known to date |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0720173001 |
| DOI | https://doi.org/10.5270/esa-y2nxlml |
| Principal Investigator, PI | Prof Jurgen Schmitt |
| Abstract | Stellar activity plays a key role in the evolution of planetary systems. HotJupiters around active stars are immersed in intense high-energy radiationfields and particle emission. In particular hydrodynamic blow-off of the outerplanetary atmosphere should occur, which leads to larger X-ray radii of hotJupiters and to deeper eclipse depths at X-ray wavelengths, which should beobservable with XMM-Newton. The extrasolar planet system CoRoT-2 harbors themost active planet host-star known to date; its unique properties actually allowto perform sensitive X-ray observations of planetary transits and study suchblow-off phenomena. We simultaneously study the X-ray and optical variability ofCoRoT-2 by observing 15 transits distributed over almost eight stellar rotations. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2013-09-28T20:10:44Z/2014-04-29T17:53:01Z |
| 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 | 2015-05-27T22:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "transits distributed", "xmm newton", "stellar activity plays", "planetary transits", "hot jupiters", "key role", "perform sensitive xray", "deeper eclipse depths", "xray wavelengths", "larger xray radii", "active planet", "energy radiation fields", "stellar rotations", "particle emission", "XMM-Newton", "planetary systems", "outer planetary atmosphere", "properties actually", "x raying corot2a", "optical variability", "XMM", "hydrodynamic blow", "active stars" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Prof Jurgen Schmitt, 2015, 'X-raying CoRoT2a, the most active planet host-star known to date', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-y2nxlml |