Evidence for Two Distinct Stellar Initial Mass Functions
Dennis Zaritsky (U. Arizona), Janet E. Colucci (UCSC), Peter M. Pessev (Gemini South), Rebecca A. Bernstein (UCSC), Rupali Chandar (U. Toledo)
http://xxx.yukawa.kyoto-u.ac.jp/abs/1209.3788
Stars and brown dwarfs in the sigma Orionis cluster. III. OSIRIS/GTC low-resolution spectroscopy of variable sources
J. A. Caballero, A. Cabrera-Lavers, D. Garcia-Alvarez, S. Pascual
http://arxiv.org/abs/1209.3679
The Spitzer Space Telescope Survey of the Orion A & B Molecular Clouds - Part I: A Census of Dusty Young Stellar Objects and a Study of their Mid-IR Variability
S. T. Megeath, R. Gutermuth, J. Muzerolle, E. Kryukova, K. Flaherty, J. Hora, L E. Allen, L. Hartmann, P. C. Myers, J. L. Pipher, J. Stauffer, E. T. Young, G. G. Fazio
http://xxx.yukawa.kyoto-u.ac.jp/abs/1209.3826
Orion Revisited - I. The massive cluster in front of the Orion Nebula Cluster
J. Alves, H. Bouy
http://arxiv.org/abs/1209.3787
