Proposal ID | 011152 |
Title | GT Observations of Active Cool Stars: 47 Cas |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0111520101 |
DOI | https://doi.org/10.5270/esa-qejl9xg |
Principal Investigator, PI | Dr Albert Brinkman |
Abstract | GT-The activity of 47 Cas with about 1000 times the Suns X-ray luminosity isattributed to a one-solar-mass companion to the optically visible F star. Thesystem very young. Frequent flares are detected in the X-ray light curve. Thistarget is part of a study on the Sun in Time on the decline of the coronalactivity of a solar analog with time. Important aspects are the emission measuredistribution, the abundance pattern that might be activity dependent, and flarevariability studies with respect to temperatures, abundances, densities, andmass motions. The pn camera and one MOS will be used in TIMING/medium filtermode. Coordinated radio observations with the VLA will be requested. |
Publications |
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Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2001-02-21T11:50:32Z/2001-09-11T13:39:01Z |
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 | 2002-10-12T00:00:00Z |
Last Update | 2025-01-27 |
Keywords | "flare variability", "active cool stars", "frequent flare", "coordinated radio", "solar analog", "medium filter mode", "xray luminosity", "solar mass companion", "mass motions", "optically visible", "activity dependent", "abundance pattern", "pn camera", "xray light curve", "coronal activity" |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Dr Albert Brinkman, 2002, 'GT Observations of Active Cool Stars: 47 Cas', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-qejl9xg |