A dataset provided by the European Space Agency

Name 004954


DOI https://doi.org/10.5270/esa-eeqrdsu
Author Dr Manuel Guedel
Description CM Draconis is the least massive, fully eclipsing double-line spectroscopic bi- nary system known, with component masses of about 0.2 solar masses. The two al- most identical components eclipse each other every 15.2 hours. Eclipse studies of such systems are pivotal for our understanding of coronal structuring. We propose to monitor two (one primary, one secondary) eclipses. We request two times 3.8 hours of exposure time each centered at one of the eclipses. Light curve inversion techniques will then be sensitive to coronal structures out to about 3 stellar radii from each component. This investigation will provide new insight into extent, structure, and density of active stellar coronae. Results will be compared with the earlier-type, much more active YY Gem system.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2001-10-26T08:00:52Z/2003-08-19T19:09:10Z
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 2004-09-25T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2004-09-25T00:00:00Z, 004954, 17.56_20190403_1200. https://doi.org/10.5270/esa-eeqrdsu