2.7k citations · 37k across the 285 of their papers we have counts for
6 papers · 2 filters
Using Line Profiles to Test the Fraternity of Type Ia Supernovae at High and Low Redshifts
S. Blondin, L. Dessart, B. Leibundgut +34
Using archival data of low-redshift (z < 0.01) Type Ia supernovae (SN Ia) and recent observations of high-redshift (0.16 < z <0.64; Matheson et al. 2005) SN Ia, we study the "unifo…
Hubble Space Telescope Observations of Nine High-Redshift ESSENCE Supernovae
Kevin Krisciunas, Peter M. Garnavich, Peter Challis +29
We present broad-band light curves of nine supernovae ranging in redshift from 0.5 to 0.8. The supernovae were discovered as part of the ESSENCE project, and the light curves are a…
Evidence for Spectropolarimetric Diversity in Type Ia Supernovae
Douglas C. Leonard, Weidong Li, Alexei V. Filippenko +2
We present single-epoch, post-maximum spectropolarimetry of four Type Ia supernovae (SNe Ia) that span a range of spectral and photometric properties: SN 2002bf and SN 2004dt exhib…
Interstellar Polarization and the Position Angle Orientations of Seyfert 1 Galaxies
Jennifer L. Hoffman, Ryan Chornock, Douglas C. Leonard +1
We comment on recent spectropolarimetric studies that compare the observed polarization position angles (PAs) of Seyfert 1 galaxies near H alpha with the observed orientations of t…
Supernova 1954J (Variable 12) in NGC 2403 Unmasked
S. D. Van Dyk, A. V. Filippenko, R. Chornock +2
We have confirmed that the precursor star of the unusual Supernova 1954J (also known as Variable 12) in NGC 2403 survived what appears to have been a super-outburst, similar to the…
Cepheid Calibrations from the Hubble Space Telescope of the Luminosity of Two Recent Type Ia Supernovae and a Re-determination of the Hubble Constant
Adam G. Riess, Weidong Li, Peter B. Stetson +6
We report observations of two nearby Type Ia supernovae (SNe Ia) for which observations of Cepheid variables in the host galaxies have been obtained with the Hubble Space Telescope…