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33 papers · 1 filter
Ultraviolet Signatures of Tidal Interaction in the Giant Spiral Galaxy, M101
William H. Waller, Ralph C. Bohlin, Robert H. Cornett +10
We present new evidence for tidal interactions having occurred in the disk of M101 in the last 10^8 - 10^9 years. Recent imaging of the far-ultraviolet emission from M101 by the Sh…
Determination of the Hubble Constant
Wendy L. Freedman
Recent developments in the determination of H0 are reviewed in the context of the 3 following questions: 1) What is required to measure an accurate value of H0? Given the wide rang…
Distant Galaxy Clusters Identified From Optical Background Fluctuations
Dennis Zaritsky, Amy E. Nelson, Julianne J. Dalcanton +1
We present the first high redshift (0.3 < z < 1.1) galaxy clusters found by systematically identifying optical low surface brightness fluctuations in the background sky. Using spec…
The Formation of Disk Galaxies
J. J. Dalcanton, D. N. Spergel, F J Summers
We present a scenario for the formation of disks which explains not only the properties of normal galaxies, but the properties of the population of low surface brightness galaxies…
A Catalog of Morphological Types in 10 Distant Rich Clusters of Galaxies
Ian Smail, Alan Dressler, Warrick J. Couch +4
We present catalogs of objects detected in deep images of 11 fields in 10 distant clusters obtained using WFPC-2 on board the Hubble Space Telescope. The clusters span the redshift…
The Las Campanas Redshift Survey Galaxy-Galaxy Autocorrelation Function
D. L. Tucker, A. Oemler, R. P. Kirshner +7
Presented are measurements of the observed redshift-space galaxy-galaxy autocorrelation function, xi(s), for the Las Campanas Redshift Survey (LCRS). For separations 2.0/h Mpc < s…