A dataset provided by the European Space Agency

Name 065368
Title The outer atmospheres of flare stars discovered with GALEX in the near-UV
URL

http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0653680101
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0653680201
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0653680601
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0653681001
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0653681101

DOI 10.5270/esa-fbpoo79
Author Dr Beate Stelzer
Description Magnetic activity produces copious UV and X-ray emission in the chromosphere, transition region and corona of late-type stars. Both types of radiation are believed to be crucial for the evolution of the atmospheres of the planet but their relative importance is not known. While X-rays penetrate deeper into the planet atmosphere, UV fluxes may be higher and significantly affect the outer layers of the planet atmosphere. We aim at a comprehensive study of the strength and range of X-ray and UV fluxes for M dwarfs identified in the GALEX All-Sky Survey. In this proposal we ask for the corresponding X-ray measurements.
Publication Serendipitous UV source catalogues for 10 years of XMM and 5 years of Swift . Yershov, V. N., . Ap&SS . 354-97 . 2014 . 2014Ap&SS.354...97Y ,
XMM-Newton publication statistics . Ness, J.-U., Parmar, A. N., et all. . AN . 335-210 . 2014 . 2014AN....335..210N ,
The Million Optical - Radio-X-ray Associations (MORX) Catalogue . Flesch, Eric W., . PASA . 33-52 . 2016 . 2016PASA...33...52F ,
AGN spectral states from simultaneous UV and X-ray observations by XMM-Newton . Svoboda, J., Guainazzi, M., . A&A . 603-127 . 2017 . 2017A&A...603A.127S ,
A Comparison of X-Ray Photon Indices among the Narrow- and Broad-line Seyfert 1 Galaxies . Ojha, Vineet, Chand, Hum, et all. . ApJ . 896-95 . 2020 . 2020ApJ...896...95O ,
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 Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2012-05-07T00:00:00Z, 065368, 17.56_20190403_1200. https://doi.org/10.5270/esa-fbpoo79