A dataset provided by the European Space Agency

Name 014037
Title The Coronae of G Giants
URL

http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0140370401

DOI 10.5270/esa-pizwwht
Author Dr Philippe Gondoin
Description We propose to perform XMM-Newton observations of two slowly rotating G giants, HD 85444 and HD 141714, for a total exposure of 158 ksec. RGS and EPIC spectra will be used to constrain the geometry of coronal loop systems in their coronae. Results will be compared with those obtained from the analysis of XMM-Newton spectra of rapidly rotating G giants. The study intend to test whether a transition from star-size magnetic structures to compact coronal arcades occurs in the coronae of giants between slow and fast rotators.
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Cross-correlation of the 2XMMi catalogue wi...
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2003-03-02T19:14:14Z/2003-03-03T04:36:14Z
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 2004-03-29T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2004-03-29T00:00:00Z, 014037, 17.56_20190403_1200. https://doi.org/10.5270/esa-pizwwht