Proceedings of the International Astronomical Union

Table of Contents - January 2012 - Volume 8, Symposium S287 (Cosmic Masers - from OH to H0)  

Contributed Papers

Massive star-formation toward G28.87+0.07

J. J. Lia1a2, L. Moscadellia2, R. Cesaronia2, R. S. Furuyaa3, Y. Xua1, T. Usudaa3, K. M. Mentena4, M. Pestalozzia5, D. Eliava5 and E. Schisanoa5

a1 Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008, email: jjli@pmo.ac.cn

a2 INAF-Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5, I-50125 Firenze, Italy

a3 Subaru Telescope, National Astronomical Observatory of Japan, 650 North A'ohoku Place, Hilo, HI 96720, USA

a4 Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany

a5 INAF-Istituto Fisica Spazio Interplanetario, Via Fosso del Cavaliere 100, I-00133 Roma, Italy

Abstract

We investigated the high-mass star-forming region G28.87+0.07 by means of maser kinematics, including H2O, CH3OH, and OH, and radio to infrared, continuum observations. All observational evidence suggests that these masers are associated with the same young star of 20-30 M⊙, still in the main accretion phase and surrounded by a rich stellar cluster.

Keywords

  • ISM: individual objects (G28.87+0.07) – ISM: kinematics and dynamics – masers – techniques: interferometric