Optical Spectra of Type 1a Supernovae at z = 0.46 and z = 1.2

Coil, Alison L; Matheson, Thomas; Filippenko, Alexei; Leonard, D C; Tonry, John; Reiss, D; Challis, Peter M; Clocchiatti, Alejandro; Garnavich, Peter M; Hogan, Craig; Jha, Saurabh; Kirshner, Robert P; Leibundgut, Bruno; Phillips, Matthew R; Schmidt, Brian; Smith, R. Chris; Soderberg, A M; Spyromilio, Jason; Stubbs, Christopher W; Suntzeff, Nicholas B; Woudt, P; Schommer, Robert

Optical Spectra of Type 1a Supernovae at z = 0.46 and z = 1.2

Date

2000

Authors

Coil, Alison L

Matheson, Thomas

Filippenko, Alexei

Leonard, D C

Tonry, John

Reiss, D

Challis, Peter M

Clocchiatti, Alejandro

Garnavich, Peter M

Hogan, Craig

Publisher

IOP Publishing

Abstract

We present optical spectra, obtained with the Keck 10 m telescope, of two high-redshift Type Ia supernovae (SNe Ia) discovered by the High-z Supernova Search Team: SN 1999ff at z = 0.455 and SN 1999fv at z ∼ 1.2, the highest redshift published SN Ia spe