Determination of Physical Quantities of Globular Clusters

Details Determination of Physical Quantities of Globular Clusters Determination of Physical Quantities of Globular Clusters

Jun 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989jkas...22...81k&link_type=abstract

Journal of the Korean Astronomical Society, vol. 22, no. 1, p. 81-99

Mathematics

Logic

Scientific paper

Applying five morphological parameters defined along the main seqence(MS), red giant branch(RGB) and horizontal branch(HB) in the C-M diagram(CMD), and the transition period-luminosity relation for RR Lyrae variables, some basic physical quantities such as helium abundance, age, mass and luminosity are determined for 21 well observed globular clusters with combination of evolutionary models and atmospheric models properly chosen by the numerical test. The dependences of these quantities on the age and chemical abundance are investigated.

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