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SIMBA survey of southern high-mass star forming regions. I. Physical parameters of the 1.2-mm/IRAS sources
- S. Faúndez, L. Bronfman, G. Garay, R. Chini, L. Nyman, J. May
- Physics
- 1 October 2004
We report the results of a 1.2 mm continuum emission survey toward 146 IRAS sources thought to harbour high- mass star forming regions. The sources have FIR colors typical of UCHII regions and were…
A Search for Infall Motions toward Nearby Young Stellar Objects
- D. Mardones, P. Myers, M. Tafalla, D. Wilner, R. Bachiller, G. Garay
- Physics
- 1 July 1997
We report observations of 47 candidate protostars in two optically thick lines [H2CO (212-111) and CS (2-1)] and one optically thin line [N2H+ (1-0)] using the IRAM 30 m, SEST 15 m, and Haystack 37 m…
Massive Stars : Their Environment and Formation
Cloud environment is thought to play a critical role in determining the mechanism of formation of massive stars. In this contribution we review the physical characteristics of the environment around…
VLA observations of strong IRAS point sources associated with compact H II regions
- G. Garay, Luis F. Rodríguez, J. Moran, E. Churchwell
- Physics
- 1 November 1993
We present multifrequency radio continuum observations made with the Very Large Array of a sample of 16 strong IRAS point sources associated with compact H II regions. Twelve sources were observed at…
Millimetre continuum observations of southern massive star formation regions. I. SIMBA observations of cold cores
We report the results of a 1.2-mm continuum emission survey toward 131 star-forming complexes suspected of undergoing massive star formation. These regions have previously been identified as…
ATLASGAL - The APEX telescope large area survey of the galaxy at 870 μm
- F. Schuller, K. Menten, A. Weiss
- Physics
- 20 February 2009
Context. Thanks to its excellent 5100 m high site in Chajnantor, the Atacama Pathfinder Experiment (APEX) systematically explore s the southern sky at submillimeter wavelengths, both in continuum and…
Discovery of a Highly Collimated Molecular Outflow in the Southern Bok Globule BHR 71
- T. Bourke, G. Garay, A. R. Hyland
- Physics
- 20 February 1997
We report observations of the southern Bok globule BHR 71 in the J = 1 → 0 and J = 2 → 1 lines of 12CO, the J = 1 → 0 lines of 13CO and C18O, and (J, K) = (1, 1) and (2, 2) inversion lines of NH3…
Star-forming protoclusters associated with methanol masers
- V. Minier, M. Burton, S. Longmore
- Physics
- 26 November 2004
We present a multiwavelength study of five methanol maser sites which are not directly associated with a strong (>100 mJy) radio continuum source: G 31.28+0.06, G 59.78+0.06, G 173.49+2.42 (S231,…
CHEMISTRY IN INFRARED DARK CLOUD CLUMPS: A MOLECULAR LINE SURVEY AT 3 mm
- P. Sanhueza, J. Jackson, J. Foster, G. Garay, Andrea Silva, S. C. Finn
- Physics
- 1 May 2011
We have observed 37 Infrared Dark Clouds (IRDCs), containing a total of 159 clumps, in high-density molecular tracers at 3 mm using the 22 m ATNF Mopra Telescope located in Australia. After…
A CLUSTER IN THE MAKING: ALMA REVEALS THE INITIAL CONDITIONS FOR HIGH-MASS CLUSTER FORMATION
- J. Rathborne, S. Longmore, A. Walsh
- Physics
- 29 January 2015
G0.253+0.016 is a molecular clump that appears to be on the verge of forming a high-mass cluster: its extremely low dust temperature, high mass, and high density, combined with its lack of prevalent…
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