CCD photometry of globular clusters in NGC 3377

Journal Article · Sat Sep 01 00:00:00 EDT 1990 · Publications of the Astronomical Society of the Pacific; (USA)

DOI:https://doi.org/10.1086/132724· OSTI ID:6062611

Harris, W E ^[1]

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1. McMaster Univ., Hamilton (Canada)

New CCD photometry to a limit B = 24.3 is presented for a sample of globular clusters around NGC 337, an intermediate-size elliptical in the Leo group. Assuming that the luminosity function of its globular clusters follows the same log-normal form as in other galaxies, a peak frequency level (turnover magnitude) of B(0) = 23.35 + or - 0.40 is derived for a combined sample of clusters in NGC 3377 and NGC 3379. Matching this to the globular clusters in the Milky Way then gives a distance modulus (m - M)B (Leo) = 30.2, or d = (10.7 + or - 2.2) Mpc, in good agreement with other recent distance-scale methods. The clusters around NGC 3377 follow a highly ellipsoidal space distribution; two different tests show that their distribution is at least as flattened as the E6 shape of the galaxy itself. 31 refs.

• OSTI ID: 6062611
• Journal Information: Publications of the Astronomical Society of the Pacific; (USA), Vol. 102; ISSN 0004-6280
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
STAR CLUSTERS
PHOTOMETRY
CHARGE-COUPLED DEVICES
COMPARATIVE EVALUATIONS
DISTANCE
ELLIPTICAL CONFIGURATION
GALAXIES
GALAXY CLUSTERS
LUMINOSITY
SPATIAL DISTRIBUTION
CONFIGURATION
DISTRIBUTION
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
SEMICONDUCTOR DEVICES
640102* - Astrophysics & Cosmology- Stars & Quasi-Stellar
Radio & X-Ray Sources