6 papers
The Evolution of Galaxies: A Metaphysics Viewpoint
J. Schombert
This is the written version of an invited review talk for the 13 Feb 2004 AAAS Meeting in Seattle. The talk's goal is to present a philosophical view of extragalactic astronomy as…
Narrow Band Continuum Colors of Distant Cluster Populations
J. Schombert, K. Rakos
In this poster, we present new results on narrow band photometry for A2218 (=0.18) and A2125 (=0.25), two clusters with similar redshifts, but very different cluster properti…
Global Metallicities From Globulars Through To Elliptical Galaxies
K. Rakos, J. Schombert, A. Odell
We present narrow band data on dwarf ellipticals in nearby (Virgo, Fornax) and intermediate redshift clusters (A2125, A2218) in order to study their mean age and metallicities. In…
NVO and the LSB Universe
James M. Schombert
There is tremendous scientific potential in a National Virtual Observatory, particularly for projects that need to mine large databases for rare or unusual objects. However, the NV…
AGN Activity in Giant LSB Galaxies
James Schombert
A search of large, HI-rich disk galaxies finds a significantly higher fraction of low luminosity AGN signatures compared to other late-type galaxies. Approximately half of the gala…
Color Evolution from z=0 to z=1
Karl Rakos, James Schombert
Rest frame Stromgren photometry (3500A, 4100A, 4750A and 5500A) is presented for 509 galaxies in 17 rich clusters between z=0 and z=1 as a test of color evolution. Our observations…