We propose for XMM-Newton observations of two highly extincted fields in theChaII star forming region. Our aim is to complete the census of cloud membersusing X-ray emission as a means to discover young stars. A clear assessment ofthe full stellar population is essential to establish the evolutionary state ofa star forming cloud. ChaII seems to represent a comparatively young phase wheremany stars retain their disks. But a large number of low-mass members may stillbe hidden in the dark parts of the cloud. In contrast to earlier X-rayinstrumentation XMM-Newton provides enough sensitivity and an extended spectralrange allowing to penetrate the highly absorbed parts of ChaII, and study thestellar population across regions of high and varying extinction.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2004-01-11T13:32:40Z/2004-01-12T09:17:06Z
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 BEATE STELZER, 2005, 'USING X-RAYS TO PROBE THE STELLAR POPULATION IN CHA II', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-h2bip26
