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The Rosette Eye: The key transition phase in the birth of a massive star

Li, Jin Zeng, Smith, Michael D., Gredel, Roland, Davis, Chris J., Rector, Travis A. (2008) The Rosette Eye: The key transition phase in the birth of a massive star. Astrophysical Journal Letters, 679 (2). L101-L104. ISSN 1538-4357. (doi:10.1086/589445) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:15773)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided.
Official URL:
http://dx.doi.org/10.1086/589445

Abstract

Massive protostars dramatically influence their surroundings via accretion-induced outflows and intense radiation fields. They evolve rapidly, the disk and infalling envelope being evaporated and dissipated in similar to 10(5) yr. Consequently, they are very rare and investigating this important phase of early stellar evolution is extremely difficult. Here we present the discovery of a key transient phase in the emergence of a massive young star, in which ultraviolet radiation from the newborn giant has just punctured through its natal core. The massive young stellar object AFGL 961 II is readily resolved in the near-infrared. Its morphology closely resembles a cat's eye and is here dubbed the "Rosette Eye." Emerging ionized flows blow out an hourglass-shaped nebula, which, along with the existence of strong near-infrared excess, suggests the existence of an accretion disk in the perpendicular direction. The lobes of the hourglass, however, are capped with arcs of static H-2 emission produced by fluorescence. This study has strong implications for our understanding of how massive stars embark on their formation.

Item Type: Article
DOI/Identification number: 10.1086/589445
Uncontrolled keywords: accretion, accretion disks; ISM : jets and outflows; stars : early-type; stars : formation; stars
Subjects: Q Science
Divisions: Divisions > Division of Natural Sciences > Physics and Astronomy
Depositing User: Jane Griffiths
Date Deposited: 26 Mar 2009 14:17 UTC
Last Modified: 16 Nov 2021 09:53 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/15773 (The current URI for this page, for reference purposes)

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