Population studies - The age difference between the globular clusters NGC 288 and NGC 362

Details Population studies - The age difference between the globular clusters NGC 288 and NGC 362 Population studies - The age difference between the globular clusters NGC 288 and NGC 362

Apr 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...353l..17g&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 353, April 10, 1990, p. L17-L20.

Astronomy and Astrophysics

Astrophysics

81

Astronomical Photometry, Globular Clusters, Stellar Evolution, Charge Coupled Devices, Color-Magnitude Diagram, Milky Way Galaxy

Scientific paper

CCD and photoelectric BR photometry are presented of the globular clusters NGC 288 and NGC 362 over the B range from 14 to 22. The data were obtained to test in as differential a manner as possible the hypothesis of Searle and Zinn (1978) that age is the second parameter affecting horizontal-branch morphology, and that there is an age spread in the globular cluster system of the Galaxy. Superposition of color-magnitude data for the two clusters, together with comparison of the morphology in the vicinity of the main-sequence turnoff, demonstrate basic differences most readily explained in terms of NGC 362 being some 3 + or - 1 Gyr younger than NGC 288, as has been advocated by Bolte (1989). The data are most consistent with the view that the halo globular cluster system, and by inference the Galactic halo, formed in a chaotic manner as advocated by Searle and Zinn.

Affiliated with

Also associated with

No associations

Rating

Population studies - The age difference between the globular clusters NGC 288 and NGC 362 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Population studies - The age difference between the globular clusters NGC 288 and NGC 362, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Population studies - The age difference between the globular clusters NGC 288 and NGC 362 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1380272