NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2018-11-17 T09:27:58 PST
Help | Comment | NED Home

For refcode 1996ApJ...462...50H:
Retrieve 53 NED objects in this reference.
Please click here for ADS abstract

NED Abstract

Copyright by American Astronomical Society. Reproduced by permission
1996ApJ...462...50H THE FORMATION OF DWARF GALAXIES IN TIDAL DEBRIS: A STUDY OF THE COMPACT GROUP ENVIRONMENT SALLY D. HUNSBERGER AND JANE C. CHARLTON Astronomy and Astrophysics Department, Pennsylvania State University, University Park, PA 16802; sdh@astro.psu.edu; charlton@astro.psu.edu AND DENNIS ZARITSKY University of California Observatories/Lick Observatories and Board of Studies in Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064; dennis@ucolick.org Received 1995 October 3; accepted 1995 November 14 ABSTRACT From R-band images of 42 Hickson compact groups, we present a sample of 47 candidate dwarf galaxies that are associated with the tidal tails and arms in the groups. The candidates, found in 15 tidal features, have R magnitudes and masses (for M/L = 1) in the ranges - 16.5 <= M_R_ - 5 log h_75_ <= -11.5 and 2 x 10^6^ M_sun_ <= M <= 2 x 10^8^ M_sun_, respectively. Their masses and locations are compared to the predictions of theoretical/N-body tidal dwarf formation scenarios. Considering the longevity of tidal debris in the compact group environment and the results of this survey, we estimate the contribution of the tidal dwarf formation mechanism to the population of dwarf galaxies observed at large in compact groups. If the majority of our dwarf galaxy candidates are confirmed as being gravitationally bound stellar systems, then a significant fraction, perhaps as much as one-half, of the dwarf population in compact groups is the product of interactions among giant parent galaxies. Subject headings: galaxies: clusters: general - galaxies: formation - galaxies: interactions
Retrieve 53 NED objects in this reference.
Please click here for ADS abstract

Back to NED Home