Optical Spectra of Type Ia Supernovae at z = 0.46 and z = 1.2

Author affiliations

¹ Department of Astronomy, University of California, Berkeley, Berkeley, CA 94720-3411

² Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822

³ Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218

⁴ Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138

⁵ Departamento de Astronomía y Astrofísica, Pontificia Universidad Católica, Casilla 104, Santiago 22, Chile

⁶ Physics Department, 225 Nieuwland Science Hall, University of Notre Dame, Notre Dame, IN 26556

⁷ Department of Astronomy, University of Washington, Seattle, WA 98195

⁸ European Southern Observatory, Karl-Schwarzschild-Strasse 2, Garching, D-85748, Germany

⁹ Cerro Tololo Inter-American Observatory, Casilla 603, La Serena, Chile

¹⁰ The Research School of Astronomy and Astrophysics, Private Bag, Weston Creek PO, ACT 2611, Australia

¹¹ University of Michigan, Department of Astronomy, 834 Dennison Building, Ann Arbor, MI 48109

¹² Los Alamos National Laboratory, MS D436, Los Alamos, NM 87545