The Stellar Initial Mass Function: Constraints from Young Clusters and Theoretical Perspectives

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dc.creatorMeyer, Michael R.
dc.creatorAdams, Fred C.
dc.creatorHillenbrand, Lynne A.
dc.creatorCarpenter, John M.
dc.creatorLarson, Richard B.
dc.date1999-02-14
dc.date.accessioned2026-07-07T02:30:27Z
dc.date.available2026-07-07T02:30:27Z
dc.descriptionWe summarize recent observational and theoretical progress aimed at understanding the origin of the stellar initial mass function (IMF) with specific focus on galactic star-forming regions. We synthesize data from various efforts to determine the IMF in very young, partially-embedded stellar clusters and find: i) no significant variations in the low-mass IMF have been observed between different star-forming regions; and ii) the mass distributions of young stars just emerging from molecular clouds are consistent with having been drawn from the IMF derived from field stars in the solar neighborhood. These results apply only to gross characterizations of the IMF (e.g. the ratio of high to low mass stars); present observations do not rule out more subtle regional differences. Further studies are required in order to assess whether or not there is evidence for a universal turnover near the hydrogen--burning limit. We also provide a general framework for discussing theories of the IMF, and summarize recent work on several physical mechanisms which could play a role in determining the form of the stellar initial mass function.
dc.description30 pages, 3 figures, 1 table: To appear in Protostars & Planet IV, eds. V. Mannings, A. Boss, S. Russell (Tucson: The University of Arizona Press)
dc.identifierhttps://arxiv.org/abs/astro-ph/9902198
dc.identifierhttp://arxiv.org/abs/astro-ph/9902198
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/13820
dc.subjectAstrophysics
dc.titleThe Stellar Initial Mass Function: Constraints from Young Clusters and Theoretical Perspectives
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