The core-collapse rate from the Supernova Legacy Survey
We use three years of data from the Supernova Legacy Survey (SNLS) to study the general properties of core-collapse and type Ia supernovae. This is the first such study using the "rolling search" technique which guarantees well-sampled SNLS light curves and good efficiency for supemovae br...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
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2009
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| _version_ | 1826304995091283968 |
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| author | Bazin, G Palanque-Delabrouille, N Rich, J Ruhlmann-Kleider, V Aubourg, E Le Guillou, L Astier, P Balland, C Basa, S Carlberg, R Conley, A Fouchez, D Guy, J Hardin, D Hook, I Howell, D Pain, R Perrett, K Pritchet, C Regnault, N Sullivan, M Antilogus, P Arsenijevic, V Baurnont, S Fabbro, S |
| author_facet | Bazin, G Palanque-Delabrouille, N Rich, J Ruhlmann-Kleider, V Aubourg, E Le Guillou, L Astier, P Balland, C Basa, S Carlberg, R Conley, A Fouchez, D Guy, J Hardin, D Hook, I Howell, D Pain, R Perrett, K Pritchet, C Regnault, N Sullivan, M Antilogus, P Arsenijevic, V Baurnont, S Fabbro, S |
| author_sort | Bazin, G |
| collection | OXFORD |
| description | We use three years of data from the Supernova Legacy Survey (SNLS) to study the general properties of core-collapse and type Ia supernovae. This is the first such study using the "rolling search" technique which guarantees well-sampled SNLS light curves and good efficiency for supemovae brighter than i' ∼ 24. Using host photometric redshifts, we measure the supernova absolute magnitude distribution down to luminosities 4.5 mag fainter than normal SNIa. Using spectroscopy and light-curve fitting to discriminate against SNIa, we find a sample of 117 core-collapse supernova candidates with redshifts z < 0.4 (median redshift of 0.29) and measure their rate to be larger than the type Ia supernova rate by a factor 4.5 ± 0.8(stat.) ± 0.6(sys.). This corresponds to a core-collapse rate at z = 0.3 of [1.42 ± 0.3(stat.) ± 0.3(sys.)]*10-4 yr-1 (h-170 Mpc)-3. © ESO 2009. |
| first_indexed | 2024-03-07T06:26:10Z |
| format | Journal article |
| id | oxford-uuid:f46000bd-8169-4215-8b4a-2588815a20c9 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T06:26:10Z |
| publishDate | 2009 |
| record_format | dspace |
| spelling | oxford-uuid:f46000bd-8169-4215-8b4a-2588815a20c92022-03-27T12:19:19ZThe core-collapse rate from the Supernova Legacy SurveyJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f46000bd-8169-4215-8b4a-2588815a20c9EnglishSymplectic Elements at Oxford2009Bazin, GPalanque-Delabrouille, NRich, JRuhlmann-Kleider, VAubourg, ELe Guillou, LAstier, PBalland, CBasa, SCarlberg, RConley, AFouchez, DGuy, JHardin, DHook, IHowell, DPain, RPerrett, KPritchet, CRegnault, NSullivan, MAntilogus, PArsenijevic, VBaurnont, SFabbro, SWe use three years of data from the Supernova Legacy Survey (SNLS) to study the general properties of core-collapse and type Ia supernovae. This is the first such study using the "rolling search" technique which guarantees well-sampled SNLS light curves and good efficiency for supemovae brighter than i' ∼ 24. Using host photometric redshifts, we measure the supernova absolute magnitude distribution down to luminosities 4.5 mag fainter than normal SNIa. Using spectroscopy and light-curve fitting to discriminate against SNIa, we find a sample of 117 core-collapse supernova candidates with redshifts z < 0.4 (median redshift of 0.29) and measure their rate to be larger than the type Ia supernova rate by a factor 4.5 ± 0.8(stat.) ± 0.6(sys.). This corresponds to a core-collapse rate at z = 0.3 of [1.42 ± 0.3(stat.) ± 0.3(sys.)]*10-4 yr-1 (h-170 Mpc)-3. © ESO 2009. |
| spellingShingle | Bazin, G Palanque-Delabrouille, N Rich, J Ruhlmann-Kleider, V Aubourg, E Le Guillou, L Astier, P Balland, C Basa, S Carlberg, R Conley, A Fouchez, D Guy, J Hardin, D Hook, I Howell, D Pain, R Perrett, K Pritchet, C Regnault, N Sullivan, M Antilogus, P Arsenijevic, V Baurnont, S Fabbro, S The core-collapse rate from the Supernova Legacy Survey |
| title | The core-collapse rate from the Supernova Legacy Survey |
| title_full | The core-collapse rate from the Supernova Legacy Survey |
| title_fullStr | The core-collapse rate from the Supernova Legacy Survey |
| title_full_unstemmed | The core-collapse rate from the Supernova Legacy Survey |
| title_short | The core-collapse rate from the Supernova Legacy Survey |
| title_sort | core collapse rate from the supernova legacy survey |
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