7 papers · 1 filter
Photometry and Photometric Redshifts of Galaxies in the Hubble Deep Field South Nicmos Field
Hsiao-Wen Chen, Alberto Fernandez-Soto, Kenneth M. Lanzetta +4
We present an electronic catalog of infrared and optical photometry and photometric redshifts of 323 galaxies in the Hubble Deep Field South NICMOS field at http://www.ess.sunysb.e…
Constraints on the Unseen Galaxy Population from the Lyman-alpha Forest
Kenneth M. Lanzetta, Hsiao-Wen Chen, John K. Webb +1
Here we describe results of our attempt to determine what types of galaxies are responsible for the Lyman-alpha forest absorption systems, based on our ongoing imaging and spectros…
The Ultraviolet Luminosity Density of the Universe from Photometric Redshifts of Galaxies in the Hubble Deep Field
Sebastian M. Pascarelle, Kenneth M. Lanzetta, Alberto Fernandez-Soto
Studies of the Hubble Deep Field (HDF) and other deep surveys have revealed an apparent peak in the ultraviolet (UV) luminosity density, and therefore the star-formation rate densi…
Environmental Dependence of the Nature of Gaseous Envelopes of Galaxies at z < 1
Noriaki Yahata, Kenneth M. Lanzetta, John K. Webb +1
We present new statistical study on the origin of Lyman-alpha absorption systems that are detected in QSO fields. The primary objective is to investigate environmental dependence o…
Galaxies at Redshifts z > 5
Kenneth M. Lanzetta, Hsiao-Wen Chen, Sebastian Pascarelle +1
Here we describe our attempts to establish statistically complete samples of very high redshift galaxies by obtaining photometric redshifts of galaxies in Medium Deep Survey (MDS)…
High-Redshift Galaxies: The HDF and More
A. Fernandez-Soto, K. M. Lanzetta, A. Yahil
We review our present knowledge of high-redshift galaxies, emphasizing particularly their physical properties and the ways in which they relate to present-day galaxies. We also pre…