Surface photometry in cores of globular clusters

Details Surface photometry in cores of globular clusters Surface photometry in cores of globular clusters

Feb 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...277l..49d&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 277, Feb. 15, 1984, p. L49-L52.

Astronomy and Astrophysics

Astronomy

78

Astronomical Photometry, Globular Clusters, Stellar Luminosity, Ultraviolet Photometry, X Ray Sources, Black Holes (Astronomy), Cores, Microdensitometers, Southern Sky, Stellar Evolution

Scientific paper

Photographic ultraviolet surface photometry has been carried out in nine southern globular clusters, to look for a brightness excess like that in M15. The effect is found in three of the clusters, and possibly in a fourth. Their profiles are consistent with the predictions of theory for a post-core-collapse stage. The core peak phenomenon does not seem to correlate with the presence of strong X-ray sources.

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