Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· Full Refereed Journal Article (PDF/Postscript)
· On-line Data
· References in the article
· Citations to the Article (15) (Citation History)
· Refereed Citations to the Article
· SIMBAD Objects (117)
· NED Objects (1)
· Associated Articles
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
Compact Star Clusters in M81. I. Data from Hubble Space Telescope Wide Field Planetary Camera 2 Imaging
Authors:
Chandar, Rupali; Ford, Holland C.; Tsvetanov, Zlatan
Affiliation:
AA(; Department of Physics and Astronomy, Johns Hopkins University, 3701 San Martin Drive, Baltimore, MD 21218; , , .), AB(; Department of Physics and Astronomy, Johns Hopkins University, 3701 San Martin Drive, Baltimore, MD 21218; , , .), AC(; Department of Physics and Astronomy, Johns Hopkins University, 3701 San Martin Drive, Baltimore, MD 21218; , , .)
Publication:
The Astronomical Journal, Volume 122, Issue 3, pp. 1330-1341. (AJ Homepage)
Publication Date:
09/2001
Origin:
UCP
AJ Keywords:
galaxies: individual (M81), Galaxies: Star Clusters, Galaxies: Stellar Content
DOI:
10.1086/322127
Bibliographic Code:
2001AJ....122.1330C

Abstract

In this paper, we present the discovery of 114 compact star clusters in the nearby spiral galaxy M81 from B-, V-, and I-band Hubble Space Telescope Wide Field Planetary Camera 2 imaging in eight fields, covering a total area of ~40 arcmin2. The fields sample a variety of environments (both spiral and interarm regions), as well as a range of projected galactocentric distances from 2 to 12 kpc. The sample is complete to V~22, deeper by ~1 mag than any previous cluster survey in M81. We present details of the separation of clusters from both stellar sources and background galaxies, which has been based solely on structural parameters and morphology and not using any color cuts, as is necessary for ground-based surveys. We present magnitudes and colors of detected clusters. Surface brightness profiles are compared with single-mass King models, giving a range of core radii for the clusters in our sample between 0.2 and 7 pc. Based on observations with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy (AURA), Inc., under NASA contract NAS 5-26555.

Associated Articles

Part 1     Part  2    

Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)
   

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints