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On the Origin of Exponential Disks at High Redshift
Bruce G. Elmegreen, Debra Meloy Elmegreen, David R. Vollbach +2
The major axis and ellipse-fit intensity profiles of spiral galaxies larger than 0.3'' in the Hubble Space Telescope Ultra Deep Field (UDF) are generally exponential, whereas the m…
Galaxy Morphologies in the Hubble Ultra Deep Field: Dominance of Linear Structures at the Detection Limit
Debra Meloy Elmegreen, Bruce G. Elmegreen, Douglas S. Rubin +1
Galaxies in the Hubble Ultra Deep Field (UDF) larger than 10 pixels (0.3 arcsec) have been classified according to morphology and their photometric properties are presented. There…
Central Blue Clumps in Elliptical Galaxies of the Hubble Ultra Deep Field
Debra Meloy Elmegreen, Bruce G. Elmegreen, Thomas E. Ferguson
Elliptical galaxies larger than 10 pixels in the Hubble Ultra Deep Field (UDF) were surveyed for internal structure; 30 out of 100 in a sample of 884 morphologically classified gal…
Stellar Populations in Ten Clump-Cluster Galaxies of the Ultra Deep Field
Bruce G. Elmegreen, Debra Meloy Elmegreen
Color-color diagrams for the clump and interclump emission in 10 clump-cluster galaxies of the Ultra Deep Field are made from B,V,i, and z images and compared with models to determ…