Título
Blast: the mass function, lifetimes, and properties of intermediate mass cores from a 50 deg² submillimeter galactic survey in vela (ℓ ≈265º)
Autor
David Hughes
Nivel de Acceso
Acceso Abierto
Materias
Resumen o descripción
We present first results from an unbiased 50 deg² submillimeter Galactic survey at 250, 350, and 500 μm from the 2006 flight of the Balloon-borne Large Aperture Submillimeter Telescope. The map has resolution ranging from 36′′ to 60′′ in the three submillimeter bands spanning the thermal emission peak of cold starless cores.We determine the temperature, luminosity, and mass of more than 1000 compact sources in a range of evolutionary stages and an unbiased statistical characterization of the population. From comparison with C¹⁸O data, we find the dust opacity per gas mass, κr = 0.16 cm² gˉ¹ at 250 μm, for cold clumps. We find that 2% of the mass of the molecular gas over this diverse region is in cores colder than 14 K, and that the mass function for these cold cores is consistent with a power law with index α = −3.22±0.14 over the mass range
Editor
The Astrophysical Journal
Fecha de publicación
20 de diciembre de 2009
Tipo de publicación
Artículo
Versión de la publicación
Versión aceptada
Recurso de información
Formato
application/pdf
Idioma
Inglés
Audiencia
Estudiantes
Investigadores
Público en general
Sugerencia de citación
Netterfield, Calvin B., et al., (2009). Blast: the mass function, lifetimes, and properties of intermediate mass cores from a 50 deg² submillimeter galactic survey in vela (ℓ ≈265º), The Astrophysical Journal. Vol. 707(2):1824–1835.
Repositorio Orígen
Repositorio Institucional del INAOE
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432