A circumstellar disk associated with a massive protostellar object

Details A circumstellar disk associated with a massive protostellar object A circumstellar disk associated with a massive protostellar object

Sep 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005natur.437..112j&link_type=abstract

Nature, Volume 437, Issue 7055, pp. 112-115 (2005).

Computer Science

35

Scientific paper

The formation process for stars with masses several times that of the Sun is still unclear. The two main theories are mergers of several low-mass young stellar objects, which requires a high stellar density, or mass accretion from circumstellar disks in the same way as low-mass stars are formed, accompanied by outflows during the process of gravitational infall. Although a number of disks have been discovered around low- and intermediate-mass young stellar objects, the presence of disks around massive young stellar objects is still uncertain and the mass of the disk system detected around one such object, M17, is disputed. Here we report near-infrared imaging polarimetry that reveals an outflow/disk system around the Becklin-Neugebauer protostellar object, which has a mass of at least seven solar masses (Msolar). This strongly supports the theory that stars with masses of at least 7Msolar form in the same way as lower mass stars.

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