HAL : in2p3-00131070, version 1
 arXiv : astro-ph/9602122
 Thermonuclear Supernovae, Parador d'Aiguablava : Espagne
 Scheduled Discoveries of 7+ High-Redshift Supernovae: First Cosmology Results and Bounds on $q_0$
 SUPERNOVAE Collaboration(s)
 (1996)
 Our search for high-redshift Type Ia supernovae discovered, in its first years, a sample of seven supernovae. Using a "batch" search strategy, almost all were discovered before maximum light and were observed over the peak of their light curves. The spectra and light curves indicate that almost all were Type Ia supernovae at redshifts z = 0.35 -- 0.5. These high-redshift supernovae can provide a distance indicator and "standard clock" to study the cosmological parameters q_0, Lambda, Omega_0, and H_0. This presentation and the following presentations of Kim et al. (1996), Goldhaber et al. (1996), and Pain et al. (1996) will discuss observation strategies and rates, analysis and calibration issues, the sources of measurement uncertainty, and the cosmological implications, including bounds on q_0, of these first high-redshift supernovae from our ongoing search.
 Thème(s) : Physique/Astrophysique/Cosmologie et astrophysique extra-galactiquePlanète et Univers/Astrophysique
 Lien vers le texte intégral : http://fr.arXiv.org/abs/astro-ph/9602122
 in2p3-00131070, version 1 http://hal.in2p3.fr/in2p3-00131070 oai:hal.in2p3.fr:in2p3-00131070 Contributeur : Dominique Girod <> Soumis le : Jeudi 15 Février 2007, 09:00:32 Dernière modification le : Jeudi 15 Février 2007, 09:01:38