We have carried out a study of the luminosity function (henceforth LF) of galaxies in the region of the HDF-North using our very complete redshift catalog. We divide the sample into five redshift bins covering the range 0.01 < z < 1.5 and consider three primary galaxy spectral classes. We solve for the LF at four rest frame wavelengths from 0.24 to 2.2μ. We find that the LFs for quiescent galax...

We show a comparison of the rest-frame UV morphologies of a sample of 162 intermediate redshift (zmedian = 1.02) galaxies with their rest-frame optical morphologies. We select our sample from the deepest near-UV image obtained with the Hubble Space Telescope (HST) using the WFPC2 (F300W) as part of the parallel observations of the Hubble Ultra Deep Field campaign overlapping with the HST/ACS GO...

Using deep HST ACS imaging and VLT FORS2 spectra, we determined the velocity dispersions, effective radii and surface brightnesses for four early-type galaxies in the z = 1.237 cluster RDCS 1252.9-2927. All four galaxies are massive, > 10 11 M ⊙. These four galaxies, combined with three from RDCS 0848+4453 at z = 1.276, establish the Fundamental Plane of massive early-type cluster galaxies at ¯...

In the present paper we analyze Fréchet frame of the form {φ(·−j) | j ∈ Z}. With a known condition on φ, we show that the given sequence constitutes a frame for a test space isomorphic to the space of periodic smooth functions so that its dual is the multiple of the space of periodic distributions by φ̂. AMS Mathematics Subject Classification (2000): 42C15,42C40,42C99,46A35,46B20

In this work we provide polyphase, modulation, and frame theoretical analyses of a filter bank on a discrete abelian group. Thus, multidimensional or cyclic filter banks as well as filter banks for signals in `(Z×Zs) or `(Zr ×Zs) spaces are studied in a unified way. We obtain perfect reconstruction conditions and the corresponding frame bounds.

We present the broad-band UV through mid-infrared spectral energy distributions (SEDs) of a sample of 72 spectroscopically-confirmed star-forming galaxies at z = 2.30± 0.3. Located in a 72 arcmin field centered on the bright background QSO, HS1700+643, these galaxies were pre-selected to lie at z ∼ 2 based solely on their rest-frame UV colors and luminosities, and should be representative of UV...

We have discovered an excess of extremely red objects (EROs) surrounding the z = 2.69 quasar QSO 1213–0017 (UM 485). Optical/IR colors for these galaxies are consistent with z = 1 − 2 ellipticals, and there are at least 5 galaxies with spectroscopic redshifts at z ≈ 1.31. Keck optical spectra for 3 of the red galaxies show rest-frame UV breaks resembling local elliptical galaxies. Our initial r...

There exists a gradual, but persistent, evolutionary effect in the galaxy population such that galaxy structure and morphology change with redshift. This galaxy structure-redshift relationship is such that an increasingly large fraction of all bright and massive galaxies at redshifts 2 < z < 3 are morphologically peculiar at wavelengths from rest-frame ultraviolet to rest-frame optical. There a...

Deep observations of the Chandra Deep Field South have been secured at 15μm with AKARI/IRC infrared space telescope. From these observations, we define a sample of mid infrared-selected galaxies at 15μm and we also obtain 15μm flux densities for a sample of Lyman Break Galaxies at z ∼ 1 already observed at 24μm with Spitzer/MIPS. Number counts for the mid infrared-selected sample show a bump ar...