372 citations · 743 across the 5 of their papers we have counts for
5 papers
Optical Spectroscopy of Type Ia Supernovae
T. Matheson, R. P. Kirshner, P. Challis +19
We present 432 low-dispersion optical spectra of 32 Type Ia supernovae (SNe Ia) that also have well-calibrated light curves. The coverage ranges from 6 epochs to 36 epochs of spect…
H-delta in the Integrated Light of Galaxies: What Are We Actually Measuring?
L. C. Prochaska, J. A. Rose, N. Caldwell +5
We present a cautionary study exploring the reliability of the H-delta line in the integrated spectra of galaxies for determining galaxy ages. Our database consists of the observed…
UBVRI Light Curves of 44 Type Ia Supernovae
Saurabh Jha, Robert P. Kirshner, Peter Challis +2
We present UBVRI photometry of 44 type-Ia supernovae (SN Ia) observed from 1997 to 2001 as part of a continuing monitoring campaign at the Fred Lawrence Whipple Observatory of the…
Star formation histories of early-type galaxies. I: Higher order Balmer lines as age indicators
Nelson Caldwell, James A. Rose, Kristi Dendy Concannon
(shortened) We have obtained blue integrated spectra of 175 nearby early-type galaxies, covering a wide range in galaxy velocity dispersion, and emphasizing those with sigma < 100…
Spectral Variations in Early-Type Galaxies as a Function of Mass
K. D. Concannon, J. A. Rose, N. Caldwell
We report on the strengths of three spectral indicators - Mg_2, Hbeta, and Hn/Fe - in the integrated light of a sample of 100 field and cluster E/S0 galaxies. The measured indices…