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Bar effects on central star formation and AGN activity
Seulhee Oh, Kyuseok Oh, Sukyoung K. Yi
Galactic bars are often suspected to be a channel of gas inflow to the galactic center and trigger central star formation and active galactic nuclei (AGN) activity. However, the cu…
A WFC3 study of globular clusters in NGC 4150 - an early-type minor merger
Sugata Kaviraj, R. Mark Crockett, Bradley C. Whitmore +8
We combine near-ultraviolet (NUV; 2250 Å) and optical (U, B, V, I) imaging from the Wide Field Camera 3 (WFC3), on board the Hubble Space Telescope (HST), to study the globular clu…
The SAURON Project - XIX. Optical and near-infrared scaling relations of nearby elliptical, lenticular and Sa galaxies
J. Falcón-Barroso, G. van de Ven, R. F. Peletier +16
[Abridged] We present ground-based MDM V-band and Spitzer/IRAC 3.6um-band photometric observations of the 72 representative galaxies of the SAURON Survey. In combination with the S…
The UV Upturn in Elliptical galaxies and Environmental Effects
Sukyoung K. Yi, Jihye Lee, Yun-Kyeong Sheen +3
It is suspected that the ultraviolet (UV) upturn phenomenon in elliptical galaxies and extended horizontal-branch stars in globular clusters have a common origin. An extremely high…
Improved and Quality-assessed Emission and Absorption Line measurements in Sloan Digital Sky Survey galaxies
Kyuseok Oh, Marc Sarzi, Kevin Schawinski +1
We present a new database of absorption and emission-line measurements based on the entire spectral atlas from the Sloan Digital Sky Survey (SDSS) 7th data release of galaxies with…
Early-type host galaxies of Type II and Ib Supernovae
Hyewon Suh, Sung-chul Yoon, Hyunjin Jeong +1
Recent studies find that some early-type galaxies host Type II or Ibc supernovae (SNe II, Ibc). This may imply recent star-formation activities in these SNe host galaxies, but a ma…