The Eta Chamaleontis cluster (6-8 Myr, d virgul 97 pc) is one of the most importantnearby T associations. Its members are in an evolutionary stage in which warminner discs, and consequently most of the accretion phenomena, are lost. Theseare also the time scales of planetary formation and migration. We propose tomake observations pointed at the centre of the Eta Chamaleontis cluster usingthe EPIC cameras. We will analyse the X-ray emission of the detected sources.Our aim is to establish a complete census of X-ray emitters members of thecluster and characterize their corona in terms of temperature, emission measure,and X-ray luminosity. The results will be compared with those of other young Tassociations, both isolated and in star-forming regions.
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Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2009-06-03T07:46:27Z/2009-06-03T21:11:42Z
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, 2010, 'X-ray emission in the Eta Chamaleontis cluster', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-ojgs0yu
