The Origin of the Lambda Orionis Star Forming Region

Details The Origin of the Lambda Orionis Star Forming Region The Origin of the Lambda Orionis Star Forming Region

Oct 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009xmm..prop..143h&link_type=abstract

XMM-Newton Proposal ID #06539502

Computer Science

Stars, White Dwarfs, Solar System, B30_M, B30_Bridge

Scientific paper

The aim of this proposal is to verify whether the Lambda Orionis Star Forming region (LOSFR), composed by several dark clouds in a 10 deg diameter ring, was created by a SN explosion coming from the central cluster, or by cloud fragmentation. So far, we have carried out a multiwavelength study of the properties of three clusters within the region, Coll69 (in the center) and B30 & B35 (in the rim), finding clear evidences of age spread between them. We propose to image two regions between C69 and B30 to study the radial distribution of young stellar sources from the center to the rim. While a continuous number of sources would be consistent with a supernova explosion, a clear discontinuity would point towards cloud fragmentation as the most probable formation scenario.

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