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Paper: Clustered Star Formation Explored with X-rays and IR Observations of SOXS: L1641 and ι Orionis Regions
Volume: 448, 16th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun
Page: 705
Authors: Pillitteri, I.; Wolk, S. J.; Allen, L.; Megeath, S. T.; Gutermuth, R. A.; SOXS collaboration
Abstract: SOXS is a joint X-ray/IR large survey conducted with XMM-Newton and Spitzer south of the Orion Nebula Cloud (ONC). By means of combined IR and X-ray observation we have discovered and characterized a population of about 1800 PMS stars distributed among Class I, Class II, transition disk objects and Class III stars. We report on the X-ray clustering properties of the young stellar population in L1641 and south of ONC around ι Orionis. Small clusters of 10–50 Class I / II stars are found in L1641 while Class III objects are sparse and relatively less numerous. On the contrary, Class III candidates are more clustered around the star ι Orionis star and this fact suggests that an age older than ONC and a different star formation history in the suburbs of ι Orionis has taken place with respect to the ONC.
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