51 citations · 267 across the 13 of their papers we have counts for
6 papers · 1 filter
The Optical Green Valley vs Mid-IR Canyon in Compact Groups
Lisa May Walker, Natalie Butterfield, Kelsey Johnson +7
Compact groups of galaxies provide conditions similar to those experienced by galaxies in the earlier universe. Recent work on compact groups has led to the discovery of a dearth o…
Stellar Populations in Compact Galaxy Groups: a Multi-Wavelength Study of HCGs 16, 22, and 42, their Star Clusters and Dwarf Galaxies
I. S. Konstantopoulos, A. Maybhate, J. C. Charlton +10
We present a multi-wavelength analysis of three compact galaxy groups, HCGs 16, 22, and 42, which describe a sequence in terms of gas richness, from space- (Swift, HST, Spitzer) an…
Examining the Role of Environment in a Comprehensive Sample of Compact Groups
Lisa May Walker, Kelsey E. Johnson, Sarah C. Gallagher +2
(Abridged) Compact groups, with their high number densities, small velocity dispersions, and an interstellar medium that has not been fully processed, provide a local analog to con…
The merger history, AGN and dwarf galaxies of Hickson Compact Group 59
I. S. Konstantopoulos, S. C. Gallagher, K. Fedotov +16
Compact group galaxies often appear unaffected by their unusually dense environment. Closer examination can, however, reveal the subtle, cumulative effects of multiple galaxy inter…
Mid-Infrared Evidence for Accelerated Evolution in Compact Group Galaxies
Lisa May Walker, Kelsey E. Johnson, Sarah C. Gallagher +5
Compact galaxy groups are at the extremes of the group environment, with high number densities and low velocity dispersions that likely affect member galaxy evolution. To explore t…
Mid-Infrared Evidence for Accelerated Evolution in Compact Group Galaxies
Lisa May Walker, Kelsey E. Johnson, Sarah C. Gallagher +4
We find evidence for accelerated evolution in compact group galaxies from the distribution in mid-infrared colorspace of 42 galaxies from 12 Hickson Compact Groups (HCGs) compared…