Astronomy and Astrophysics – Astrophysics
Scientific paper
2002-12-20
Astrophys.Space Sci. 292 (2004) 325-337
Astronomy and Astrophysics
Astrophysics
12 pages, 9 figures, to appear in the proceedings of the conference "Chemistry as a Diagnostic of Star Formation" (C.L. Curry
Scientific paper
10.1023/B:ASTR.0000045034.17706.
Improving our understanding of the initial conditions and earliest stages of protostellar collapse is crucial to gain insight into the origin of stellar masses, multiple systems, and protoplanetary disks. Observationally, there are two complementary approaches to this problem: (1) studying the structure and kinematics of prestellar cores observed prior to protostar formation, and (2) studying the structure of young (e.g. Class 0) accreting protostars observed soon after point mass formation. We discuss recent advances made in this area thanks to (sub)millimeter mapping observations with large single-dish telescopes and interferometers. In particular, we argue that the beginning of protostellar collapse is much more violent in cluster-forming clouds than in regions of distributed star formation. Major breakthroughs are expected in this field from future large submillimeter instruments such as Herschel and ALMA.
Andre' Philippe
Belloche Arnaud
Bouwman Jeroen
Hennebelle Patrick
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