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Author Saul, M.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword ASTROPHYSICS, COSMOLOGY AND ASTRONOMY ♦ AMPLIFICATION ♦ CHANNELING ♦ CLOUDS ♦ CONVERGENCE ♦ HERBIG-HARO OBJECTS ♦ IMAGES ♦ MASS ♦ METHYL METHANESULFONATE ♦ MOLECULES ♦ PROTOSTARS ♦ ROTATION ♦ STAR CLUSTERS ♦ STAR EVOLUTION ♦ TURBULENCE ♦ TURBULENT FLOW ♦ VELOCITY
Abstract Compelled to observe a young, intermediate mass (IM) protostar candidate, we image velocity structure in a variety of molecular lines toward a strong millimeter continuum peak, MMS 13, in the young stellar object cluster R Corona Australis. We report the detection of N{sub 2}H{sup +} (1–0) and C{sup 34}S (2–1) corresponding to a filamentary IM core coincident with a site of turbulent flow convergence and Spitzer infrared emission minimum. Several emission features including a central decay of turbulence, kinematic signatures of bulk infall, and strong winds support mass and age estimates in indicating the presence of a proto-Herbig Ae system in the region. Channeling of center velocity flow with turbulence amplification along the rotation axis drives wind generation in the system candidate.
ISSN 0004637X
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-08-10
Publisher Place United States
Journal Astrophysical Journal
Volume Number 809
Issue Number 1


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