Proposal ID | 065368 |
Title | The outer atmospheres of flare stars discovered with GALEX in the near-UV |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0653680101 |
DOI | https://doi.org/10.5270/esa-fbpoo79 |
Principal Investigator, PI | Dr Beate Stelzer |
Abstract | Magnetic activity produces copious UV and X-ray emission in the chromosphere,transition region and corona of late-type stars. Both types of radiation arebelieved to be crucial for the evolution of the atmospheres of the planet buttheir relative importance is not known. While X-rays penetrate deeper into theplanet atmosphere, UV fluxes may be higher and significantly affect the outerlayers of the planet atmosphere. We aim at a comprehensive study of the strengthand range of X-ray and UV fluxes for M dwarfs identified in the GALEX All-SkySurvey. In this proposal we ask for the corresponding X-ray measurements. |
Publications |
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Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2010-07-27T01:55:10Z/2011-04-19T21:16:15Z |
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 | 2012-05-07T00:00:00Z |
Last Update | 2025-01-27 |
Keywords | "transition region", "planet atmosphere", "penetrate deeper", "relative importance", "flare stars", "late type stars", "outer layers", "xray emission", "uv fluxes", "outer atmosphere", "xray measurements", "sky survey" |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Dr Beate Stelzer, 2012, 'The outer atmospheres of flare stars discovered with GALEX in the near-UV', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-fbpoo79 |