1986/06/01 by S. G. Djorgovski, Ivan R. King · 5 citations
Physics and Astronomy · #Stellar, planetary, and galactic studies #Astro and Planetary Science #Astronomy and Astrophysical Research
paper · pdf · doi:10.1086/184685
openalex publication_date 1986/06/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04
This is a preliminary report on surface photometry of the major fraction of known globular clusters, to see which of them show the signs of a collapsed core. The authors find more than 20 examples, or one-fifth of the total. Core classifications are given for all clusters examined. The fraction of collapsed-core clusters may be an index of how long a cluster takes to reexpand after collapse.