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78 papers · 1 filter
Stellar populations and Lyman-alpha emission from lensed z > 6 galaxies
Daniel Schaerer, Roser Pello
We present results from an SED analysis of two lensed high-z objects, the z=6.56 galaxy HCM6A behind the cluster Abell 370 discovered by Hu et al. (2002) and the triple arc at z~7…
'Sculptor'-ing the Galaxy? The Chemical Compositions of Red Giants in the Sculptor Dwarf Spheroidal Galaxy
Doug Geisler, Verne V. Smith, George Wallerstein +2
We have used high-resolution, high signal-to-noise spectra obtained with the VLT and UVES to determine abundances of 17 elements in 4 red giants in the Sculptor dwarf spheroidal ga…
Clusters of Galaxies: New Results from the CLEF Hydrodynamics Simulation
S. T. Kay, A. C. da Silva, N. Aghanim +5
Preliminary results are presented from the CLEF hydrodynamics simulation, a large (N=2(428)^3 particles within a 200 Mpc/h comoving box) simulation of the LCDM cosmology that inclu…
Inferring coronal structure from X-ray lightcurves and Doppler shifts: a Chandra study of AB Doradus
G. A. J. Hussain, N. S. Brickhouse, A. K. Dupree +6
The Chandra X-ray observatory monitored the single cool star, AB Doradus, continuously for a period lasting 88 ksec (1.98 Prot) in 2002 December with the LETG/HRC-S. The X-ray ligh…
Spitzer and Hubble Constraints on the Physical Properties of the z~7 Galaxy Strongly Lensed by Abell 2218
E. Egami, J. -P. Kneib, G. H. Rieke +10
We report the detection of a z~7 galaxy strongly lensed by the massive galaxy cluster Abell 2218 (z=0.175) at 3.6 and 4.5 um using the Spitzer Observatory and at 1.1 um using the H…
The GALEX-VVDS Measurement of the Evolution of the Far-Ultraviolet Luminosity Density and the Cosmic Star Formation Rate
D. Schiminovich, O. Ilbert, S. Arnouts +10
In a companion paper (Arnouts et al. 2004) we presented new measurements of the galaxy luminosity function at 1500 Angstroms out to z~1 using GALEX-VVDS observations (1039 galaxies…