Browsing by Author "XX644848"
Now showing items 21-40 of 102
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(IOP PUBLISHING LTD, 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 star formation, make ...
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(The American Astronomical Society, 2000-03-10)We present sensitive Very Large Array (VLA) radio continuum observations at 3.6 cm toward the star-forming region GGD 14 (also known as GGD 12/13/14/15, G213.88-11.84, and AFGL 890). In addition to the previously known ...
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(2007)Aims. Our goal is to determine the physical properties of molecular gas located in different environments of the SMC-from near the vicinity of hot HII regions to cold, quiescent clouds - via modelling and simulations, and ...
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(1993-08-20)We present observations of the (2, 2) and (3, 3) inversion transitions of ammonia toward a group of compact H II regions near l = 10-degrees.5, b = 0-degrees.0, made at 4'' resolution using the VLA. We detected three ...
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(1990-10-10)The VLA was used to map the NH3 emission in the lines of the (J,K) = (2,2) and (J,K) = (3,3) inversion transitions toward the warm molecular cloud associated with the compact H II region G34.3 + 0.2. The main HF line of ...
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(1988-08-15)A complete CO survey of the central 6 deg x 6 deg of the LMC was performed in order to determine the distribution of molecular clouds. At least 10 percent of the region studied exhibits CO line emission, with peak line ...
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(2007-11-01)Continuumdata at 25 and 88 GHz toward the luminous young stellar object IRAS 16547 4247 (G343.126 0.062) have been obtained with the Australia Telescope Compact Array. The triple emission source identified previously ...
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(2013-04-01)We present subarcsecond observations toward the massive star-forming region G75.78+0.34. We used the Very Large Array to study the centimeter continuum and H2O and CH3OH maser emission, and the Owens Valley Radio Observatory ...
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(2002-06-01)We report sensitive, high angular resolution VLA 3.6 cm and 7 mm continuum observations toward the starforming region Cepheus A. Three embedded young stellar objects (YSOs) were found within a projected area of 0 .6#0 ...
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(BLACKWELL PUBLISHING, 2007-10-11)We report the detection of the SiO (J = 2−1) transition from the massive cold dense core G333.125−0.562. The core remains undetected at wavelengths shorter than 70 μm and has compact 1.2-mm dust continuum. The SiO emission ...
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(Oxford University Press, 2016)Much of the dense gas in molecular clouds has a filamentary structure but the detailed structure and evolution of this gas is poorly known. We have observed 54 cores in infrared dark clouds (IRDCs) using N2H+ (1-0) and ...
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(EDP SCIENCES S A, 2007-02)Aims. We present molecular line observations of the molecular core associated with IRAS 16547-4247, which have allowed us to determine its physical and kinematical properties at angular resolutions of similar to 18". ...
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(UNIV CHICAGO PRESS, 2008-01-01)G331.5-0.1 in the Norma spiral arm is one of the most luminous and extended cores of a giant molecular cloud (GMC), containing at least six massive and dense dust condensations. Here we report the discovery, from observations ...
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(UNIV CHICAGO PRESS, 2004-07-20)We report the identification, from a 1.2 mm dust continuum emission survey toward massive star-forming regions, of four strong 1.2 mm sources without counterparts at mid-infrared (Midcourse Space Experiment [MSX]) and ...
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(1999-03-20)j\3.4 mm toward the Cepheus A East star-forming region. The HCO` line shows emission up to velocities of D50 km s~1 relative to the ambient cloud velocity. The spatial distribution of the highvelocity gas is bipolar, ...
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(IOP Publishing Ltd, 2018)We report ALMA observations with resolution approximate to 0 ''.5 at 3 mm of the extended Sgr B2 cloud in the Central Molecular Zone (CMZ). We detect 271 compact sources, most of which are smaller than 5000 au. By ruling ...
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(1999)We present VLA observations of the J; K 1; 1 , (2, 2), (3, 3) and (4, 4) inversion transitions of NH3 toward the HW 2 object in Cepheus A, with 1-arcsec angular resolution. Emission is detected in the main hyperfine ...
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(IOP, 2020)We present ALMA high spatial resolution observations toward two star-forming regions located in one of the most extreme zones of star formation in the Galaxy, the Carina Nebula. One region is located at the center of the ...
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(Universidad de ChileCyberDocs, 2010)
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(Universidad de Chile, 2012)Estudiamos la emisión continua de polvo de 17 núcleos densos masivos buscando caracterizar etapas tempranas de formación de estrellas masivas. Para ello elegimos fuentes con L > 1 × 10⁴ L_sol satisfaciendo el criterio de ...
