Infall and the Formation of a Massive Star

Details Infall and the Formation of a Massive Star Infall and the Formation of a Massive Star

May 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aspc..387...71b&link_type=abstract

Massive Star Formation: Observations Confront Theory ASP Conference Series, Vol. 387, proceedings of the conference held 10-14 S

Astronomy and Astrophysics

Astronomy

Scientific paper

We present evidence of infall in a circumstellar rotating toroid enshrouding a luminous star in the massive star-forming region G24.78+0.08. Besides being one of the rare direct detections of infall in a young high-mass star, our finding stands unique for the simultaneous presence of three elements in the same massive object: a rotating, collapsing toroid, a bipolar outflow, ejected along the rotation axis, and a hypercompact ionized H II region. The large accretion rate and the existence of a hypercompact H II region confirm that the accretion cannot be spherically symmetric and must occur in a circumstellar disk.

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