A dataset provided by the European Space Agency

Name 020306
Title THE DEPENDENCE OF CORONAL STRUCTURE ON STELLAR ROTATION USING YOUNG K DWARFS
URL

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0203060101
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0203060201
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0203060501

DOI https://doi.org/10.5270/esa-q2tdnxs
Author Dr ALEXANDER BROWN
Description We will study how coronal structure changes as a function of rotation rate by obtaining RGS and EPIC spectra for a sample of essentially identical, nearby (within 50 pc), Pleiades-age K dwarfs. Our targets (HD220140 2.76d, HD174429 0.95d, HD17925 6.6d, and HD82443 5.4d), plus stars already observed,cover the rotation period range from 0.5 to 6.6 days,and thus sample both the saturated and linearly-dependent portions of the coronal rotation-activity relation. We will measure coronal temperature-emission measure distributions, elemental abundances, and electron densities, investigate the coronal energy budget and how it relates to TR properties, and combine our results with those for other K dwarfs (e.g.AB Dor) to understand how activity level controls coronal structure.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2003-12-27T19:22:54Z/2004-04-08T08:23:39Z
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 2006-06-29T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2006-06-29T00:00:00Z, 020306, 17.56_20190403_1200. https://doi.org/10.5270/esa-q2tdnxs