Swanning around with Chandra: star and planet formation in Cygnus OB2

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Scientific paper

Understanding massive "starburst" clusters is crucial for the first stars, starburst galaxies, galactic nucleosynthesis, evolution and ISM mixing, and star and planet formation on universal and Galactic scales. Recent awareness that the 2 Myr old cluster Cygnus OB2, at only 1.5kpc, has supercluster characteristics, motivated a Chandra VLP survey of the region as part of a large multiwavelength legacy effort exploiting its proximity to learn about starburst astrophysics. I will present the first results from the ongoing analysis of the survey that was completed a year ago. About 10,000 stars down to 0.5 solar masses have been detected, proving the most complete census of a massive star forming region ever obtained and large star samples with which to test theories of giant molecular cloud collapse, massive star formation and protoplanetary disk evolution.

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