Astronomy and Astrophysics – Astronomy
Scientific paper
May 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aas...202.3004s&link_type=abstract
American Astronomical Society Meeting 202, #30.04; Bulletin of the American Astronomical Society, Vol. 35, p.741
Astronomy and Astrophysics
Astronomy
Scientific paper
We present the spectra of several supernovae with redshifts in the range 0.4 < z < 0.9. The spectra were obtained with the Low-Resolution Imaging Spectrograph (LRIS) of the Keck telescope between the months of January 1997 and March 1998; and with the Gemini Multi-Object Spectrograph (GMOS) of the Gemini North telescope between the months of April 2002 and November 2002. These supernovae were discovered as part of the Supernovae Cosmology Project; and those of type Ia have been used in the measurment of Ω M and Ω Λ . Redshifts were obtained through the use of both galaxy lines (e.g. Ca II H & K, [O III]) and supernovae lines, and supernovae type was determined through spectrum matching. In some cases, spectra of the host galaxy have also been obtained, and redshifts determined through the same method.
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