62 citations · 348 across the 21 of their papers we have counts for
21 papers
Comparative studies of Population Synthesis Models in the frame work of modified Strömgren filters
Yuvraj Harsha Sreedhar, Karl Rakos, Gerhard Hensler
Evolutionary models form a vital part of stellar population research to understand their evolution, but despite their long history of development, they often misrepresent and misin…
Ages and Metallicities of Cluster Galaxies in A779 using Modified Strömgren Photometry
Yuvraj Harsha Sreedhar, Andrew P. Odell, Karl D. Rakos +2
In the quest for the formation and evolution of galaxy clusters, Rakos and co-workers introduced a spectrophotometric method using the modified Strömgren photometry. But with the c…
The Age of Ellipticals and the Color-Magnitude Relation
James Schombert, Karl Rakos
Using new narrowband color observations of early-type galaxies in clusters, we reconstruct the color-magnitude relation (CMR) with a higher degree of accuracy than previous work. W…
Tests of Chemical Enrichment Scenarios in Ellipticals Using Continuum Colors and Spectroscopy
J. Schombert, K. Rakos
We combine spectroscopic metallicity values with integrated narrowband continuum colors to explore the internal metallicity distribution in early-type galaxies. The different techn…
The Age of Cluster Galaxies from Continuum Colors
K. Rakos, J. Schombert, A. Odell
We determine the age of 1,104 early-type galaxies in eight rich clusters ( to ) using a new continuum color technique. We find that galaxies in clusters divide i…
Age and Metallicities of Cluster Galaxies: A1185 and Coma
K. Rakos, J. Schombert, A. Odell
We present age and metallicities determinations based on narrow band continuum colors for the galaxies in the rich clusters A1185 and Coma. Using a new technique to extract luminos…