Other
Scientific paper
Dec 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aas...193.0305r&link_type=abstract
American Astronomical Society, 193rd AAS Meeting, #03.05; Bulletin of the American Astronomical Society, Vol. 30, p.1247
Other
Scientific paper
We report on our continuing program of identifying distant collisional ring galaxies in red WFPC2 images obtained from the Hubble Space Telescope Archives. Collisional ring galaxies have organized regions of enhanced star formation that make them readily identifiable at high redshift with the image resolution of the HST. The aim of this program is to produce a catalog of distant ring galaxies to be used in a redshift survey to directly measure the exponent, textit {m}, in the parameterization of the interaction/merger rate as a function of textit {z}, textit {(1 + z)}(m) . To date, we have visually scanned approximately 100 random WFPC2 fields and have identified between 15 and 20 excellent collisional ring galaxy candidates. We will present our comparison of the photometric and physical properties of our updated sample with those of nearby ring galaxies, which has allowed estimated redshifts to be determined for our sample. The large majority of these galaxies have estimated redshifts less than 1. We find that the number of candidate ring galaxies we have identified is much higher than that predicted by low values of textit {m} (0 or 1). In fact, we can rule these low values of textit {m} at greater than the 3 sigma level. This suggests a very steeply increasing galaxy interaction rate with redshift out to textit {z} = 1. We will compare our value for textit {m} with previous determinations made using other methods.
Lavery Russell J.
Reed Michael D.
Remijan Anthony J.
No associations
LandOfFree
Distant Ring Galaxies and the Galaxy Interaction Rate at High Redshift - II 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 Distant Ring Galaxies and the Galaxy Interaction Rate at High Redshift - II, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Distant Ring Galaxies and the Galaxy Interaction Rate at High Redshift - II will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-992247