activity
19952026
most citedDiscovery of a Supernova Explosion at Half the Age of the Universe and its Cosmological Implications

2.5k citations · 31k across the 290 of their papers we have counts for

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Showing 2007 · astro-phShow all

8 papers · 2 filters

astro-ph2007★ 31 cited

The Subaru/XMM-Newton Deep Survey (SXDS) - V. Optically Faint Variable Object Survey

Tomoki Morokuma, Mamoru Doi, Naoki Yasuda +19

We present our survey for optically faint variable objects using multi-epoch (8-10 epochs over 2-4 years) -band imaging data obtained with Subaru Suprime-Cam over 0.918 deg…

astro-ph2007★ 29 cited

Light curves of five type Ia supernovae at intermediate redshift

R. Amanullah, V. Stanishev, A. Goobar +14

We present multi-band light curves and distances for five type Ia supernovae at intermediate redshifts, 0.18<z<0.27. Three telescopes on the Canary Island of La Palma, INT, NOT and…

astro-ph2007★ 143 cited

Verifying the Cosmological Utility of Type Ia Supernovae: Implications of a Dispersion in the Ultraviolet Spectra

R. S. Ellis, M. Sullivan, P. E. Nugent +16

We analyze the mean rest-frame ultraviolet (UV) spectrum of Type Ia Supernovae (SNe Ia) and its dispersion using high signal-to-noise Keck-I/LRIS-B spectroscopy for a sample of 36…

astro-ph2007★ 91 cited

SNLS Spectroscopy: Testing for Evolution in Type Ia Supernovae

T. J. Bronder, I. M. Hook, P. Astier +19

Aims: We present a quantitative study of a new data set of high redshift Type Ia supernovae spectra, observed at the Gemini telescopes during the first 34 months of the Supernova L…

astro-ph2007★ 41 cited

Properties of a Gamma Ray Burst Host Galaxy at z ~ 5

P. A. Price, A. Songaila, L. L. Cowie +9

We describe the properties of the host galaxy of the gamma-ray burst GRB060510B based on a spectrum of the burst afterglow obtained with the Gemini North 8m telescope. The galaxy l…

astro-ph2007★ 64 cited

Quantitative comparison between Type Ia supernova spectra at low and high redshifts: A case study

G. Garavini, G. Folatelli, S. Nobili +44

We develop a method to measure the strength of the absorption features in Type Ia supernova (SN Ia) spectra and use it to make a quantitative comparison between the spectra of Type…

astro-ph2007★ 887 cited

SALT2: using distant supernovae to improve the use of Type Ia supernovae as distance indicators

J. Guy, P. Astier, S. Baumont +22

We present an empirical model of Type Ia supernovae spectro-photometric evolution with time. The model is built using a large data set including light-curves and spectra of both ne…

astro-ph2007★ 6 cited

The Supernova Type Ia Rate Evolution with SNLS

J. D. Neill, M. Sullivan, D. Balam +36

We present a progress report on a project to derive the evolution of the volumetric supernova Type Ia rate from the Supernova Legacy Survey. Our preliminary estimate of the rate ev…