We propose observations with XMM-EPIC/MOS in five distinct sibling associationsbelonging to the Lambda Orionis Star Forming Region (2-5 Myr, 340 pc). We havealready optical and IR photometry and spectroscopy for objects down to 0.015M(sun). The goals are: i) Assess the membership of our candidates and detect newmembers. ii) Derive accurate IMFs for each association, checking theuniversality of the IMF. iii) Study the properties and evolution of the X-rayLuminosity Functions.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2005-10-01T03:47:18Z/2005-10-01T12:10:03Z
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 David Barrado y Navascues, 2006, 'The Lambda Orionis Star Forming Region: a Test for the Universality of the IMF', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-38khoab
