High-resolution imaging of distant clusters. I - Close pairs, interactions, and the 'Butcher-Oemler' effect at Z = 0.4

Details High-resolution imaging of distant clusters. I - Close pairs, interactions, and the 'Butcher-Oemler' effect at Z = 0.4 High-resolution imaging of distant clusters. I - Close pairs, interactions, and the 'Butcher-Oemler' effect at Z = 0.4

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aj....104.2067l&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 104, no. 6, p. 2067-2071.

Astronomy and Astrophysics

Astronomy

83

Galactic Clusters, Galactic Evolution, Interacting Galaxies, Astronomical Spectroscopy, High Resolution, Red Shift

Scientific paper

New ground-based high-resolution images are presented of 23 blue galaxies whose membership has been confirmed spectroscopically in the two distant rich clusters Abell 370 and CL 0024+1654. The images have a stellar FWHM of 0.45 arcsec. Ten of these blue galaxies are found to have close companions, with separations on the scale of 1 to 2 arcsec. Several of the remaining blue galaxies also have peculiar morphologies and features, such as tidal tails, suggestive of interactions/mergers. At least 11 of the 23 blue galaxies are disk systems. It is suggested that galaxy-galaxy interactions, and possibly mergers, play an important role in the starburst mechanism responsible for the Butcher-Oemler effect at a redshift of about 0.4. It is concluded that galaxy-galaxy interactions/mergers are a primary mechanism responsible for the Butcher-Oemler effect over the range of redshifts studied to date.

Affiliated with

Also associated with

No associations

Rating

High-resolution imaging of distant clusters. I - Close pairs, interactions, and the 'Butcher-Oemler' effect at Z = 0.4 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 High-resolution imaging of distant clusters. I - Close pairs, interactions, and the 'Butcher-Oemler' effect at Z = 0.4, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-resolution imaging of distant clusters. I - Close pairs, interactions, and the 'Butcher-Oemler' effect at Z = 0.4 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1113006