WFRF:(Pritchet C. J.)
Sökning: WFRF:(Pritchet C. J.) > (2009) > The ESO/VLT 3rd yea...
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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 04101naa a2200673 4500 | |
| 001 | oai:DiVA.org:su-80707 | |
| 003 | SwePub | |
| 008 | 120927s2009 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-807072 URI |
| 024 | 7 | a https://doi.org/10.1051/0004-6361/2009122462 DOI |
| 040 | a (SwePub)su | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a ref2 swepub-contenttype |
| 072 | 7 | a art2 swepub-publicationtype |
| 100 | 1 | a Balland, C.4 aut |
| 245 | 1 0 | a The ESO/VLT 3rd year Type Ia supernova data set from the supernova legacy survey |
| 264 | c 2009-08-27 | |
| 264 | 1 | b EDP Sciences,c 2009 |
| 338 | a print2 rdacarrier | |
| 500 | a AuthorCount:27; | |
| 520 | a Aims. We present 139 spectra of 124 Type Ia supernovae (SNe Ia) that were observed at the ESO/VLT during the first three years of the Canada-France-Hawa Telescope (CFHT) supernova legacy survey (SNLS). This homogeneous data set is used to test for redshift evolution of SN Ia spectra, and will be used in the SNLS 3rd year cosmological analyses. Methods. Spectra have been reduced and extracted with a dedicated pipeline that uses photometric information from deep CFHT legacy survey (CFHT-LS) reference images to trace, at sub-pixel accuracy, the position of the supernova on the spectrogram as a function of wavelength. It also separates the supernova and its host light in similar to 60% of cases. The identification of the supernova candidates is performed using a spectrophotometric SN Ia model. Results. A total of 124 SNe Ia, roughly 50% of the overall SNLS spectroscopic sample, have been identified using the ESO/VLT during the first three years of the survey. Their redshifts range from z = 0.149 to z = 1.031. The average redshift of the sample is z = 0.63 +/- 0.02. This constitutes the largest SN Ia spectral set to date in this redshift range. The spectra are presented along with their best-fit spectral SN Ia model and a host model where relevant. In the latter case, a host subtracted spectrum is also presented. We produce average spectra for pre-maximum, maximum and post-maximum epochs for both z < 0.5 and z >= 0.5 SNe Ia. We find that z < 0.5 spectra have deeper intermediate mass element absorptions than z = 0.5 spectra. The differences with redshift are consistent with the selection of brighter and bluer supernovae at higher redshift. | |
| 650 | 7 | a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng |
| 653 | a cosmology: observations | |
| 653 | a supernovae: general | |
| 653 | a methods: data analysis | |
| 653 | a techniques: spectroscopic | |
| 700 | 1 | a Baumont, S.4 aut |
| 700 | 1 | a Basa, S.4 aut |
| 700 | 1 | a Mouchet, M.4 aut |
| 700 | 1 | a Howell, D. A.4 aut |
| 700 | 1 | a Astier, P.4 aut |
| 700 | 1 | a Carlberg, R. G.4 aut |
| 700 | 1 | a Conley, A.4 aut |
| 700 | 1 | a Fouchez, D.4 aut |
| 700 | 1 | a Guy, J.4 aut |
| 700 | 1 | a Hardin, D.4 aut |
| 700 | 1 | a Hook, I. M.4 aut |
| 700 | 1 | a Pain, R.4 aut |
| 700 | 1 | a Perrett, K.4 aut |
| 700 | 1 | a Pritchet, C. J.4 aut |
| 700 | 1 | a Regnault, N.4 aut |
| 700 | 1 | a Rich, J.4 aut |
| 700 | 1 | a Sullivan, M.4 aut |
| 700 | 1 | a Antilogus, P.4 aut |
| 700 | 1 | a Arsenijevic, V.4 aut |
| 700 | 1 | a Le Du, J.4 aut |
| 700 | 1 | a Fabbro, S.4 aut |
| 700 | 1 | a Lidman, Chrisu Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)4 aut0 (Swepub:su)clidman |
| 700 | 1 | a Mourao, A.4 aut |
| 700 | 1 | a Palanque-Delabrouille, N.4 aut |
| 700 | 1 | a Pecontal, E.4 aut |
| 700 | 1 | a Ruhlmann-Kleider, V.4 aut |
| 710 | 2 | a Stockholms universitetb Fysikum4 org |
| 773 | 0 | t Astronomy and Astrophysicsd : EDP Sciencesg 507:1, s. 85-103q 507:1<85-103x 0004-6361x 1432-0746 |
| 856 | 4 | u https://www.aanda.org/articles/aa/pdf/2009/43/aa12246-09.pdf |
| 856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-80707 |
| 856 | 4 8 | u https://doi.org/10.1051/0004-6361/200912246 |
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