Spectroscopic confirmation of high-redshift supernovae with the ESO VLT
- Lidman, C.
- Howell, D.A.
- Folatelli, G.
- Garavini, G.
- Nobili, S.
- Aldering, G.
- Amanullah, R.
- Antilogus, P.
- Astier, P.
- Blanc, G.
- S. Burns, M.
- Conley, A.
- E. Deustua, S.
- Doi, M.
- Ellis, R.
- Fabbro, S.
- Fadeyev, V.
- Gibbons, R.
- Goldhaber, G.
- Goobar, A.
- E. Groom, D.
- Hook, I.
- Kashikawa, N.
- G. Kim, A.
- Knop, R.A.
- C. Lee, B.
- Mendez, J.
- Morokuma, T.
- Motohara, K.
- E. Nugent, P.
- Pain, R.
- Perlmutter, S.
- Prasad, V.
- Quimby, R.
- Raux, J.
- Regnault, N.
- Ruiz-Lapuente, P.
- Sainton, G.
- E. Schaefer, B.
- Schahmaneche, K.
- Smith, E.
- L. Spadafora, A.
- Stanishev, V.
- Walton, N.A.
- Wang, L.
- M. Wood-Vasey, W.
- Yasuda, N.
DOIAbstract
30 pages, 43 figures. Accepted by A&AWe present VLT FORS1 and FORS2 spectra of 39 candidate high-redshift supernovae that were discovered as part of a cosmological study using Type Ia supernovae (SNe Ia) over a wide range of redshifts. From the spectra alone, 20 candidates are spectrally classified as SNe Ia with redshifts ranging from z=0.212 to z=1.181. Of the remaining 19 candidates, 1 might be a Type II supernova and 11 exhibit broad supernova-like spectral features and/or have supernova-like light curves. The candidates were discovered in 8 separate ground-based searches. In those searches in which SNe Ia at z ~ 0.5 were targeted, over 80% of the observed candidates were spectrally classified as SNe Ia. In those searches in which SNe I...
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