A dataset provided by the European Space Agency

Proposal ID 060212
Title A twin cluster to Collinder 69 in the lambda Orionis star forming region
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0602120101

DOI https://doi.org/10.5270/esa-toh4srj
Principal Investigator, PI Dr Beate Stelzer
Abstract The lambda Ori star forming region (5 Myr, 400 pc) is surrounded by a 5 x 5 degwide molecular ring probably formed by a supernova explosion. Our previousmulti-wavelength studies focused on the most well-known areas within the cloudcomplex. For a complete picture of star formation, believed to be determined bythe supernova blast, the large-scale distribution of the pre-main sequencepopulation in lambda Ori needs to be examined. We suspect a further pre-mainsequence cluster to be associated with a concentration of B-type stars near theNE of the molecular ring. A search for X-ray emission is the most efficient wayof identifying the low-mass cluster. The properties of its members will then becompared to the other lambda Ori subgroups.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2009-09-05T23:06:37Z/2009-09-06T13:32:08Z
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.
Creator Contact https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk
Date Published 2010-09-22T00:00:00Z
Last Update 2025-01-27
Keywords "lambda ori subgroups", "twin cluster", "star formation", "type stars", "supernova explosion", "low mass cluster", "scale distribution", "complete picture", "multi wavelength", "xray emission", "lambda ori", "cloud complex", "molecular ring", "supernova blast"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Beate Stelzer, 2010, 'A twin cluster to Collinder 69 in the lambda Orionis star forming region', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-toh4srj