1.4k citations · 1.9k across the 12 of their papers we have counts for
12 papers
An Undergraduate Test of Gravitational Time Dilation
Brian Patterson, Mario Serna, Jerry F. Sell +11
Students at Colorado College and cadets at the US Air Force Academy have conducted an experimental test of gravitational time dilation. This relativistic effect, highlighted in the…
Measurement of Gravitational Time Dilation: An Undergraduate Research Project
M. Shane Burns, Michael D. Leveille, Armand R. Dominguez +10
General relativity predicts that clocks run more slowly near massive objects. The effect is small---a clock at sea level lags behind one 1000 m above sea level by only 9.4 ns/day.…
Precision Measurement of The Most Distant Spectroscopically Confirmed Supernova Ia with the Hubble Space Telescope
D. Rubin, R. A. Knop, E. Rykoff +25
We report the discovery of a redshift 1.71 supernova in the GOODS North field. The Hubble Space Telescope (HST) ACS spectrum has almost negligible contamination from the host or ne…
Spectra and Light Curves of Six Type Ia Supernovae at 0.511 < z < 1.12 and the Union2 Compilation
R. Amanullah, C. Lidman, D. Rubin +42
We report on work to increase the number of well-measured Type Ia supernovae (SNe Ia) at high redshifts. Light curves, including high signal-to-noise HST data, and spectra of six S…
Constraining dust and color variations of high-z SNe using NICMOS on Hubble Space Telescope
S. Nobili, V. Fadeyev, G. Aldering +24
We present data from the Supernova Cosmology Project for five high redshift Type Ia supernovae (SNe Ia) that were obtained using the NICMOS infrared camera on the Hubble Space Tele…
Interpretation of the Cosmological Metric
Richard J. Cook, M. Shane Burns
The cosmological Robertson-Walker metric of general relativity is often said to have the consequences that (1) the recessional velocity of a galaxy at proper distance ob…