NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-20 T23:32:57 PDT
Help | Comment | NED Home

For refcode 2002AJ....123.1389B:
Retrieve 77 NED objects in this reference.
Please click here for ADS abstract

NED Abstract

Copyright by American Astronomical Society. Reproduced by permission
2002AJ....123.1389B A HUBBLE SPACE TELESCOPE CENSUS OF NUCLEAR STAR CLUSTERS IN LATE-TYPE SPIRAL GALAXIES. I. OBSERVATIONS AND IMAGE ANALYSIS TORSTEN BOKER, SEPPO LAINE, AND ROELAND P. VAN DER MAREL Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218; boeker@stsci.edu, laine@stsci.edu, marel@stsci.edu MARC SARZI AND HANS-WALTER RIX Max-Planck-Institut fur Astronomie, Konigstuhl 17, D-69117 Heidelberg, Germany; sarzi@mpia-hd.mpg.de, rix@mpia-hd.mpg.de LUIS C. HO Observatories of the Carnegie Institution of Washington, 813 Santa Barbara Street, Pasadena, CA 91101-1292; lho@ociw.edu AND JOSEPH C. SHIELDS Department of Physics and Astronomy, Clippinger Research Laboratories, Ohio University, 251B, Athens, OH 45701-2979; shields@helios.phy.ohiou.edu Received 2001 October 8; accepted 2001 December 4 ABSTRACT We present new Hubble Space Telescope I-band images of a sample of 77 nearby late-type spiral galaxies with low inclination. The main purpose of this catalog is to study the frequency and properties of nuclear star clusters. In 59 galaxies of our sample, we have identified a distinct, compact (but resolved), and dominant source at or very close to the photocenter. In many cases, these clusters are the only prominent source within a few kiloparsecs from the galaxy nucleus. We present surface brightness profiles, derived from elliptical isophote fits, of all galaxies for which the fit was successful. We use the fitted isophotes at radii larger than 2" to check whether the location of the cluster coincides with the photocenter of the galaxy and confirm that in nearly all cases, we are truly dealing with "nuclear" star clusters. From analytical fits to the surface brightness profiles, we derive the cluster luminosities after subtraction of the light contribution from the underlying galaxy disk and/or bulge. Key words: galaxies: nuclei - galaxies: spiral - galaxies: star clusters - galaxies: statistics - galaxies: structure
Retrieve 77 NED objects in this reference.
Please click here for ADS abstract

Back to NED Home