Published January 20, 2012 | Version v1
Journal article

OBSERVATIONS OF MOLECULAR OUTFLOW IN CAR 291.6-01.9

  • 1. School of Physics, University of New South Wales, NSW 2052 (Australia)
  • 2. Physics Institute, University of Bern, Bern CH-3012 (Switzerland)

Description

We report the first observations of a dense molecular gas nebula and bipolar outflow in Car 291.6-01.9, showing characteristics of an embedded young stellar object (YSO). Using the Mopra radio telescope near Coonabarabaran, Australia, we image the kinematic structure of several emission features to examine physical properties within a molecular clump of mass ∼3.2 ± 0.6 × 103 M☉ in which a stellar cluster may be forming. Motivated by acquiring a more thorough understanding of star formation we ask what may have initiated collapse in the clump; observed outflow alignment is suggestive of ∼1.0 pc distant massive star HD 308280 radiative-driven compression as a formation trigger for the dense core. An outflow derived age of <106 years, together with significant C18O and SO core depletion, support the case for the core as the host of an extremely YSO cluster.

Availability note (English)

Available from http://dx.doi.org/10.1088/0004-637X/745/1/64

Additional details

Identifiers

Publishing Information

Journal Title
Astrophysical Journal
Journal Volume
745
Journal Issue
1
Journal Page Range
[9 p.]
ISSN
0004-637X
CODEN
ASJOAB

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
43099063
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
MASS; NEBULAE; RADIO TELESCOPES; STAR EVOLUTION; STARS
Descriptors DEC
ANTENNAS; ELECTRICAL EQUIPMENT; ELECTRONIC EQUIPMENT; EQUIPMENT; EVOLUTION; RADIO EQUIPMENT; TELESCOPES