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Mixture Models in Astronomy
Michael A. Kuhn, Eric D. Feigelson
Mixture models combine multiple components into a single probability density function. They are a natural statistical model for many situations in astronomy, such as surveys contai…
The Structure of the Young Star Cluster NGC 6231. II. Structure, Formation, and Fate
Michael A. Kuhn, Konstantin V. Getman, Eric D. Feigelson +5
The young cluster NGC 6231 (stellar ages ~2-7 Myr) is observed shortly after star-formation activity has ceased. Using the catalog of 2148 probable cluster members obtained from Ch…
The Structure of the Young Star Cluster NGC 6231. I. Stellar Population
Michael A. Kuhn, Nicolás Medina, Konstantin V. Getman +4
NGC 6231 is a young cluster (age ~2-7 Myr) dominating the Sco OB1 association (distance ~1.59 kpc) with ~100 O and B stars and a large pre-main-sequence stellar population. We comb…
Candidate X-ray-Emitting OB Stars in the MYStIX Massive Star-Forming Regions
Matthew S. Povich, Heather A. Busk, Eric D. Feigelson +2
Massive, O and early B-type (OB) stars remain incompletely catalogued in the nearby Galaxy due to high extinction, bright visible and infrared nebular emission in H II regions, and…