Two Massive, Low-Luminosity Cores Toward Infrared Dark Clouds - Astrophysics > Astrophysics of GalaxiesReportar como inadecuado




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Abstract: This article presents high-resolution interferometric mosaics in the 850micron waveband of two massive, quiescent infrared dark clouds. The two cloudswere chosen based on their likelihood to represent environments preceding theformation of massive stars. The brightest compact sources detected in eachcloud have masses of approximately 110 and 60 solar masses with radii < 0.1 pc,implying mean volume densities of approximately 1 million particles per cubiccentimeter and mean column densities of about 1 gram per square centimeter.Supplementary data show these cores to be cold and inactive. Low upper limitsto their bolometric luminosities and temperatures place them at a very earlystage of evolution while current models of massive star formation suggest theyhave the potential to form massive stars.



Autor: Jonathan J. Swift

Fuente: https://arxiv.org/







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