We propose observations with XMM-EPIC in two regions near Bellatrix (Gamma Ori).Both fields contain some weak-line T Tauri type stars (WTTS) which have beenrecently recognized as members of a nearby (virgul100 pc) young (virgul25 Myr) stellarassociation. Our goal is to study the young stellar population in our vicinityin order to understand the star formation history of the solar neighbourhood.Particular goals for this proposal are: i) to detect the faintest X-ray sourcesmembers of the association in those regions; ii) to study the X-ray propertiesof the most conspicuous sources and characterize the sample in terms of coronalemission; iii) to compare the results with those obtained in field stars inorder to investigate the star formation history in the solar vicinity.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2008-03-14T15:21:29Z/2008-03-15T00:22:39Z
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.
European Space Agency, Dr Javier Lopez-Santiago, 2009, 'The 32 Ori association: a test for the star formation history in our vicinity', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-wlzgxri
