Search for Spectral Evolution in High-redshift Type Ia Supernovae

Details Search for Spectral Evolution in High-redshift Type Ia Supernovae Search for Spectral Evolution in High-redshift Type Ia Supernovae

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aspc..342..260g&link_type=abstract

1604-2004: Supernovae as Cosmological Lighthouses, ASP Conference Series, Vol. 342, Proceedings of the conference held 15-19 Jun

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In this poster a quantitative comparison of low and high-redshift supernovae by means of spectral indicators is presented. Measurements of Ca II H&K expansion velocity and equivalent width-like measurements of 12 high-redshift supernovae (0.212 < z < 0.912) are found statistically consistent with those of nearby supernovae. One of the supernovae in our dataset, SN 2002fd (z=0.279), shows spectral characteristics similar to peculiars SN 1991T/SN 1999aa.

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