381 citations · 451 across the 4 of their papers we have counts for
5 papers · 1 filter
The Current Understanding on the UV Upturn
Sukyoung K. Yi
The unexpected high bump in the UV part of the spectrum found in nearby giant elliptical galaxies, a.k.a. the UV upturn, has been a subject of debate. A remarkable progress has bee…
A Search for Extended Ultraviolet Disk (XUV-disk) Galaxies in the Local Universe
David A. Thilker, Luciana Bianchi, Gerhardt Meurer +26
We have initiated a search for extended ultraviolet disk (XUV-disk) galaxies in the local universe. Herein, we compare GALEX UV and visible--NIR images of 189 nearby (D40 Mpc) S…
UV Bright Globular Clusters in M87: More Evidence for Super-helium-rich Stellar Populations?
S. Kaviraj, S. T. Sohn, R. W. O'Connell +3
We study the UV and optical properties of 38 massive GCs in M87, imaged using the HST/STIS and WFPC2 instruments. The majority of these GCs appear extremely bright in the FUV - rou…
On the globular cluster formation history of NGC 5128
S. Kaviraj, I. Ferreras, S. -J. Yoon +1
We deduce the globular cluster formation history of the nearby elliptical NGC 5128 by using a phenomenological chemical enrichment model to reproduce its observed metallicity distr…
Spectrophotometric Dating of Elliptical Galaxies in the Ultraviolet
Y. -W. Lee, J. -H. Woo, S. Yi +1
The UV upturn phenomenon observed in elliptical galaxies is attractive for its potential value as an age indicator of old stellar systems. We present our most recent population mod…