| HAL : in2p3-00139454, version 1 |
| arXiv : astro-ph/0703656 |
| Code Bibliographique ADS : 2007A&A...464..827B |
| DOI : 10.1051/0004-6361:20066553 |
| Fiche détaillée | Récupérer au format |
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| Astronomy and Astrophysics 464 (2007) 827-836 |
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| Spectroscopic observations of eight supernovae at intermediate redshift |
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| (2007) |
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| We present spectra of six Type Ia and two Type II supernovae obtained in June 2002 at the William Herschel Telescope during a search for Type Ia supernovae (SNIa) at intermediate redshift. Supernova type identification and phase determination are performed using a fitting technique based on a Xi2 minimization against a series of model templates. The spectra range from z=0.033 to z=0.328, including one spectroscopically underluminous SNIa at z=0.033. This set of spectra significantly increases the sample of well-observed type SNIa supernovae available in the range 0.15< z <0.35. Together with the twelve supernovae observed by our team in 1999 in the same redshift range, they form an homogeneous sample of seventeen type Ia supernovae with comparable signal-to-noise ratio and regular phase sampling in a still largely unexplored region of the redshift space. |
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| 1 : | LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies |
| 2 : | APC - AstroParticule et Cosmologie |
| 3 : | IAS - Institut d'astrophysique spatiale |
| 4 : | LUTH - Laboratoire Univers et Théories |
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| APC - Cosmologie et gravitation |
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| Thème(s) | : | Physique/Astrophysique/Cosmologie et astrophysique extra-galactique Planète et Univers/Astrophysique/Cosmologie et astrophysique extra-galactique Planète et Univers/Astrophysique |
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| Lien vers le texte intégral : |
| in2p3-00139454, version 1 | |
| http://hal.in2p3.fr/in2p3-00139454 | |
| oai:hal.in2p3.fr:in2p3-00139454 | |
| Contributeur : Simone Lantz | |
| Soumis le : Lundi 11 Juin 2007, 15:57:00 | |
| Dernière modification le : Lundi 18 Juin 2012, 14:38:22 | |