Fragmentation, Fragment Interactions and the Stellar Mass Spectrum

Details Fragmentation, Fragment Interactions and the Stellar Mass Spectrum Fragmentation, Fragment Interactions and the Stellar Mass Spectrum

Jan 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a....93..160b&link_type=abstract

Astronomy and Astrophysics, Vol. 93, P. 160, 1981

Astronomy and Astrophysics

Astrophysics

25

Scientific paper

It is shown that the ratio of the mean collision time of a fragment of mass m with any other fragment to its own free-fall time is a strongly dependent function of mass. This shows that most likely, fragment interactions is the dominant mechanism for explaining the stellar mass spectrum in open clusters for masses ≳ 1 Msun, whereas collisions are negligible for lower mass fragments and thus fragmentation within the cloud influences more strongly the mass spectrum at the low mass end. This result holds also when the fragments do not satisfy the Jeans criterion.

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