18.1k citations · 18.4k across the 7 of their papers we have counts for
7 papers
Observational Properties of Primordial Stellar Populations
N. Panagia, M. Stiavelli, H. C. Ferguson +1
We present the first results of a study of the expected properties of the first stellar generations in the Universe. In particular, we consider and discuss a series of properties t…
The distant Type Ia supernova rate
R. Pain, S. Fabbro, M. Sullivan +26
We present a measurement of the rate of distant Type Ia supernovae derived using 4 large subsets of data from the Supernova Cosmology Project. Within this fiducial sample, which su…
Survey of the ISM in Early-Type Galaxies. IV. The Hot Dust Component
F. Ferrari, M. G. Pastoriza, F. D. Macchetto +4
We present mid-IR photometric properties for a sample of 28 early-type galaxies observed at 6.75, 9.63 and 15 um with the ISOCAM instrument on board the ISO satellite. We find tota…
The Metallicity evolution of Damped Lyman-alpha systems
S. Savaglio, N. Panagia, M. Stiavelli
We have collected data for 69 Damped Lyman-alpha (DLA) systems, to investigate the chemical evolution of galaxies in the redshift interval 0.0 < z < 4.4. In doing that, we have ado…
HST Measurements of the Expansion of NGC 6543: Parallax Distance and Nebular Evolution
D. S. Reed, B. Balick, A. R. Hajian +5
The optical expansion parallax of NGC 6543 has been detected and measured using two epochs of HST images separated by a time baseline of only three years. We have utilized three se…
Measurements of Omega and Lambda from 42 High-Redshift Supernovae
S. Perlmutter, G. Aldering, G. Goldhaber +29
We report measurements of the mass density, Omega_M, and cosmological-constant energy density, Omega_Lambda, of the universe based on the analysis of 42 Type Ia supernovae discover…