On the contraction of protostellar clouds with different metallicities

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1 Citation (Scopus)

Abstract

We examine the thermal and chemical evolution of gravitationally collapsing protostellar clouds with metallicity 0 ≤ Z/Z ≤ 1. During the first collapse stage, the temperatures are higher for lower metallicity clouds. However, in the course of the adiabatic contraction of transient cores, the evolutionary trajectories of the clouds converge to a curve that is determined only by fundamental physical constants. The trajectories coincide each other thereafter. The size of the stellar core at formation is the same regardless of metallicity.

Original languageEnglish
Pages (from-to)807-813
Number of pages7
JournalAstrophysics and Space Science
Volume276
Issue number2-4
DOIs
Publication statusPublished - 2001
Externally publishedYes

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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