Browsing by Title Facultad de Ciencias Físicas y Matemáticas
Now showing items 2236-2255 of 20545
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(EDP Sciences, 2015)Context. The formation of high mass stars and clusters occurs in giant molecular clouds. Objects in evolved stages of massive star formation such as protostars, hot molecular cores, and ultracompact HII regions have been ...
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(2014)Context. The formation processes and the evolutionary stages of high-mass stars are poorly understood compared to low-mass stars. Large-scale surveys are needed to provide an unbiased census of high column density sites ...
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(EDP SCIENCES, 2016)Context. Sensitive ground-based submillimeter surveys, such as ATLASGAL, provide a global view on the distribution of cold dense gas in the Galactic plane at up to two-times better angular-resolution compared to recent ...
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(Royal Astronomical Society, 2013-08-19)We present a complete sample of molecular clumps containing compact and ultracompact H II (UC H II) regions between = 10◦ and 60◦ and |b| < 1◦, identified by combining the APEX Telescope Large Area Survey of the Galaxy ...
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(ESO, 2009-02-20)Context. Thanks to its excellent 5100 m high site in Chajnantor, the Atacama Pathfinder Experiment (APEX) systematically explores the southern sky at submillimeter wavelengths, in both continuum and spectral line emission. ...
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(Royal Astronomical Society, 2014)By matching infrared-selected, massive young stellar objects (MYSOs) and compact H II regions in the Red MSX Source survey to massive clumps found in the submillimetre ATLASGAL (APEX Telescope Large Area Survey of the ...
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(Universidad de Chile, 2022)La difusa línea divisoria entre las enanas cafés y los exoplanetas gigantes ha despertado la curiosidad de astrónomos porque representan dos poblaciones de objetos astrofísicos, fundamentales para la comprensión de la ...
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(2003-10-01)Regional and large-scale circulation anomalies associated with periods of enhanced and reduced convective cloudiness over Uruguay are studied for austral spring and summer, when rainfall associated with deep convection is ...
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(Universidad de Chile, 2019)En esta tesis presento la evolución de las variables atmosféricas que determinan el clima planetario al variar el parámetro de oblicuidad. Usando un modelo de circulación general de la atmósfera acoplado a un océano soméro ...
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(Academic Press Inc., 2018)We present the evolution of the atmospheric variables that affect planetary climate by increasing the obliquity by using a general circulation model (PlaSim) coupled to a slab ocean with mixed layer flux correction. We ...
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(Universidad de Chile, 2012)En esta tesis se estudian los mecanismos físicos involucrados en el forzamiento atmosférico del océano superficial a escala estacional y sinóptica frente a Chile central. Para esto, se utilizaron observaciones disponibles ...
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(Frontiers Media, 2020)This paper quantifies the climatological contribution of atmospheric rivers (ARs) to annual snow accumulation in the Andes Cordillera between 26.5 degrees S and 36.5 degrees S. An AR identification algorithm, and a ...
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(American Meteorological Society, 2017)
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(UNIV CHICAGO PRESS, 2005-04-20)We present a coarsely sampled longitude-velocity (l-V) map of the region l = 300 degrees - 354 degrees, b = 0 degrees in the 492 GHz fine-structure transition of neutral atomic carbon (C-0 P-3(1) - P-3(0); [C I]), observed ...
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(Oxford University, 2017)We have conducted a search for optical circumstellar absorption lines in the spectra of 16 debris disc host stars. None of the stars in our sample showed signs of emission line activity in either Hα, CaII or Na I, confirming ...
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(Universidad de Chile, 2016)La fricción interna corresponde a la capacidad de los materiales de disipar la energía de ondas de sonido. Esta capacidad depende del tipo de material así como del tipo y cantidad de defectos que contenga. Durante muchos ...
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(Oxford University Press, 2020)The ATOMS, standing for ALMA Three-millimeter Observations of Massive Star-forming regions, survey has observed 146 active star-forming regions with ALMA band 3, aiming to systematically investigate the spatial distribution ...
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(Oxford University Press, 2020)We report studies of the relationships between the total bolometric luminosity (L-bol or L-TIR) and the molecular line luminosities of J = 1 - 0 transitions of (HCN)-C-13, (HCO+)-C-13, HCN, and HCO+ with data obtained from ...
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(Oxford, 2022)Investigating the physical and chemical structures of massive star-forming regions is critical for understanding the formation and the early evolution of massive stars. We performed a detailed line survey toward six dense ...
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(Universidad de Chile, 2015)En Chile, el sector industrial más activo en el desarrollo de la economía nacional ha sido la minería del cobre , tanto por nivel de las inversiones en cantidad y montos, como en el aporte de divisas que genera su exportación. ...
