منابع مشابه
Ammonia in Infrared Dark Clouds
Context. While low mass clouds have been relatively well studied, our picture of high-mass star formation remains unclear. Infrared Dark Clouds appear to be the long sought population of cold and dense aggregations with the potential of harbouring the earliest stages of massive star formation. Up to now there has been no systematic study on the temperature distribution, velocity fields, chemica...
متن کاملLocal Interstellar Medium Kinematics towards the Southern Coalsack and Chamaeleon-Musca dark clouds
ABSTRACT The results of a spectroscopic programme aiming to investigate the kinematics of the local interstellar medium components towards the Southern Coalsack and Chamaeleon-Musca dark clouds are presented. The analysis is based upon high-resolution (R ≈ 60 000) spectra of the insterstellar NaI D absorption lines towards 63 B-type stars (d 6 500 pc) selected to cover these clouds and the conn...
متن کاملPhysical association between the Southern Coalsack and the Chamaeleon - Musca dark clouds ?
The results of a photometric programme aiming to investigate the hypothesis of a physical association between the Southern Coalsack and the Chamaeleon-Musca dark clouds are presented. The analysis is based upon uvbyβ photometry for 1017 stars selected from the Smithsonian Astrophysical Observatory star catalog to cover these clouds and the connecting area defined by the galactic coordinates: 30...
متن کاملEastern and Southern Africa
This Report is a product of the staff of IFAD and the judgements made herein do not necessarily reflect the views of its Member Countries or the representatives of those Member Countries appointed to its Executive Board. IFAD does not guarantee the accuracy of the data included in this publication and accepts no responsibility whatsoever for any consequence of their use. Designations employed i...
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ژورنال
عنوان ژورنال: Intereconomics
سال: 1976
ISSN: 0020-5346,1613-964X
DOI: 10.1007/bf02929490