Browsing by Author "XX564637"
Now showing items 21-40 of 49
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(Universidad de ChilePrograma Cybertesis, 2007)
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(Nature Publishing Group, 2015)The loss of mass from protostars, in the form of a jet or outflow, is a necessary counterpart to protostellar mass accretion(1,2). Outflow ejection events probably vary in their velocity and/or in the rate of mass loss. ...
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(Universidad de ChilePrograma Cybertesis, 2008)La región G34.43+0.24 es una nube molecular opaca en la emisión del Infrarrojo medio, la cual presenta una forma filamentaria. Tiene una extensión de ~10 pc y está ubicada a una distancia de 3.7 kpc. Esta región se escogió ...
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(Universidad de Chile, 2010)En esta tesis doctoral se investigan las condiciones físicas y geométricas de la estructura (denominada toro) responsable del exceso en infrarrojo (IR) observado en la distribución espectral de energía (SED) de galaxias ...
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(Oxford University Press, 2020)We studied the filament structures and cold dense cores in OMC-2,3 region in Orion A North molecular cloud using the high-resolution N2H+ (1-0) spectral cube observed with the Atacama Large Millimeter/Submillimeter Array ...
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(The Korean Astronomical Society, 2015-09)The physical and chemical properties of prestellar cores, especially massive ones, are still far from being well understood due to the lack of a large sample. The low dust temperature (< 14 K) of Planck cold clumps makes ...
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(EDP Science, 2020)In this article, we simulated the collisions of an OH center dot projectile impacting on a methanol cluster formed by ten units of methanol to mimic an ice mantle (CH3OH)(10). The chemical processes occurring after the ...
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(2010-02-10)We report molecular line and dust continuum observations, made with the Swedish-ESO Submillimeter Telescope, toward four young high-mass star-forming regions associated with highly luminous (L > 6 × 105 L ) Infrared Astronomical ...
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(2010-02-10)We present sensitive near-infrared (J, H, and K) imaging observations toward four luminous massive star-forming regions in the Norma Spiral Arm: G324.201+0.119, G328.307+0.432, G329.337+0.147, and G330.949−0.174. We ...
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(The American Astronomical Society, 2015-01-20)We report molecular line observations, made with ASTE and SEST, and dust continuum observations at 0.87 mm, made with APEX, toward the cold dust core G305.136+0.068. The molecular observations show that the core is isolated ...
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(Universidad de Chile, 2015)En el contexto del modelo de formacion jerárquico, las galaxias son esculpidas por una secuencia de colisiones y eventos de acreción. En algunas de estas colisiones los núcleos de cada galaxia migran a la región central ...
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(IOP PUBLISHING LTD, 2008-06)The triple radio source detected in association with the luminous infrared source IRAS 16547-4247 has previously been studied with high angular resolution and high sensitivity with the Very Large Array at 3.6 cm wavelength. ...
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(Universidad de Chile, 2012)Uno de los problemas claves en el estudio de la formación de estrellas es determinar si acaso el paradigma de formación de estrellas de baja masa, específicamente, contracción gravitacional y la posterior presencia de un ...
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(2007-10-20)We report observations of dust continuum emission at 1.2 mm toward the star-forming region NGC 6334 made with the SEST SIMBAbolometer array. The observations cover an area of 2 deg2 with approximately uniform noise. We ...
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(Universidad de Chile, 2011)Los procesos de formación y evolución temprana de estrellas de alta masa aun no se entienden bien. El estudio de las estrellas masivas es, tanto desde el punto de vista observacional como teórico, mucho mas complejo que ...
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Methanol and silicon monoxide observations toward bipolar outflows associated with Class 0 objects (2002-03-10)We report Swedish-ESO Submillimetre Telescope observations of seven bipolar outÑows thought to be associated with Class 0 objects in the t\0 J\3]2 and J\2]1 transitions of SiO and Jk\ 3k and transitions of Methanol and ...
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(The American Astronomical Society, 2014-03-01)We present a survey of 28 molecular outflows driven by low-mass protostars, all of which are sufficiently isolated spatially and/or kinematically to fully separate into individual outflows. Using a combination of new and ...
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(2010-05-17)We present molecular line observations, made with angular resolutions of 2000, toward the filamentary infrared dark cloud G34.43+0.24 using the APEX [CO(3 ! 2), 13CO(3 ! 2), C18O(3 ! 2) and CS(7 ! 6) transitions], ...
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(IOP Publisihing, 2016)We are performing a series of observations with ground-based telescopes toward Planck Galactic cold clumps (PGCCs) in the lambda Orionis complex in order to systematically investigate the effects of stellar feedback. In ...
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(IOP, 2020)Carbon-bearing molecules, particularly CO, have been widely used as tracers of molecular gas in the interstellar medium (ISM). In this work, we aim to study the properties of molecules in diffuse, cold environments, where ...
