Washington photometry of the globular cluster system around NGC 3311. 2: Spatial structure and mass spectrum

Details Washington photometry of the globular cluster system around NGC 3311. 2: Spatial structure and mass spectrum Washington photometry of the globular cluster system around NGC 3311. 2: Spatial structure and mass spectrum

Mar 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aj....109.1033m&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 109, no. 3, p. 1033-1043

Astronomy and Astrophysics

Astronomy

31

Density Distribution, Galactic Halos, Globular Clusters, Mass Distribution, Mass To Light Ratios, Spatial Distribution, Star Distribution, Stellar Magnitude, Data Reduction, Image Analysis, Luminosity, Statistical Analysis, Stellar Spectrophotometry, Velocity Distribution

Scientific paper

We present Washington T1 photometry of globular clusters around NGC 3311, the central cD in the A1060 (Hydra I) galaxy cluster. The surface density profile of the globular cluster system (GCS) is traced over galactocentric radii 0.4 arcmin less than or approximately = R less than or approximately = 3.5 arcmin (5 less than or approximately = R less than or approximately = 45 kpc); we find Sigmacl approximates R-1.4, which follows the radial profile of the galaxy's halo light very closely in this region. The balance of current observational evidence suggests that the only places in D/cD systems where such halo-GCS congruities exist ar the envelopes of cD galaxies. The shape of the GCS at R greater than or approximately = 0.9 arcmin is found to be at least E3 (and possibly even E4), which, in turn is at least as elliptical as the galaxy itself at these radii. The mass spectrum of the most luminous globular clusters is also investigated; it follows a power law of logarithmic slope -2.9 +/- 0.2 for Mv less than or approximately = -9, which is identical to the value (-3.2 +/- 0.5) appropriate for a similar (but narrower) mass range in the GCSs of early-type galaxies in Virgo. The specific frequency of the NGC 3311 GCS is calculated as 15 +/- 6; this is somewhat lower than previous investigations had indicated, but is almost identical to the value for M87, and thus still firmly in the high-S N regime.

Affiliated with

Also associated with

No associations

Rating

Washington photometry of the globular cluster system around NGC 3311. 2: Spatial structure and mass spectrum 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 Washington photometry of the globular cluster system around NGC 3311. 2: Spatial structure and mass spectrum, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Washington photometry of the globular cluster system around NGC 3311. 2: Spatial structure and mass spectrum will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-883860