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E+A Galaxies with Blue Cores: Active Galaxies in Transition
Yujin Yang, Christy Tremonti, Ann Zabludoff +1
HST ACS images reveal blue cores in four E+A, or post-starburst, galaxies. Follow-up spectroscopy shows that these cores have LINER spectra. The existence of LINERs, consistent wit…
Probing Galaxy Formation with He II Cooling Lines
Yujin Yang, Ann I. Zabludoff, Romeel Davé +5
Using high resolution cosmological simulations, we study hydrogen and helium gravitational cooling radiation. We focus on the HeII cooling lines, which arise from gas with a differ…
E+A Galaxies and the Formation of Early Type Galaxies at z~0
Yujin Yang, Ann I. Zabludoff, Dennis Zaritsky +2
We present HST/WFPC2 observations of the five bluest E+A galaxies (z~0.1) in the Zabludoff et al. sample to study whether their detailed morphologies are consistent with late-to-ea…
Gemini Near-IR Photometry of the Arches Cluster near the Galactic Center
Yujin Yang, Hong Soo Park, Myung Gyoon Lee +1
We present Near-IR photometry of the Arches cluster, a young and massive stellar cluster near the Galactic center. We have analyzed the high resolution (FWHM 0.2") H and K' band im…