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Were progenitors of local L* galaxies Lyman-alpha emitters at high redshift?
Hidenobu Yajima, Yuexing Li, Qirong Zhu +3
The Lya emission has been observed from galaxies over a redshift span z ~ 0 - 8.6. However, the evolution of high-redshift Lya emitters (LAEs), and the link between these populatio…
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…
A Swift Look at SN 2011fe: The Earliest Ultraviolet Observations of a Type Ia Supernova
Peter J. Brown, Kyle S. Dawson, Massimiliano de Pasquale +8
We present the earliest ultraviolet (UV) observations of the bright Type Ia supernova SN 2011fe/PTF11kly in the nearby galaxy M101 at a distance of only 6.4 Mpc. It was discovered…
The Evolution of Ly-alpha Emitting Galaxies Between z = 2.1 and z = 3.1
Robin Ciardullo, Caryl Gronwall, Christopher Wolf +11
We describe the results of a new, wide-field survey for z=3.1 Ly-alpha emission-line galaxies (LAEs) in the Extended Chandra Deep Field South (ECDF-S). By using a nearly top-hat 50…
A Search for Lyman Break Galaxies in the CDF-S Using Swift UVOT
Antara R. Basu-Zych, Ann E. Hornschemeier, Erik A. Hoversten +2
(Abridged) While the Swift satellite is primarily designed to study gamma-ray bursts, its ultraviolet and optical imaging and spectroscopy capabilities are also being used for a va…
X-ray Constraints on the Lyman-Alpha Escape Fraction
Zhen-Ya Zheng, Sangeeta Malhotra, Jun-Xian Wang +7
We have coadded X-ray flux of all known Lyman Alpha Emitters (LAEs) in the 4 Msec Chandra Deep Field South (CDF-S) region, to place sensitive upper limits on the average unobscured…