The core-collapse rate from the Supernova Legacy Survey

G. Bazin; N. Palanque-Delabrouille; J. Rich; V. Ruhlmann-Kleider; E. Aubourg; L. Le Guillou; P. Astier; C. Balland; S. Basa; R. G. Carlberg; A. Conley; D. Fouchez; J. Guy; D. Hardin; I. M. Hook; D. A. Howell; R. Pain; K. Perrett; C. J. Pritchet; N. Regnault; M. Sullivan; P. Antilogus; V. Arsenijevic; S. Baurnont; S. Fabbro; J. Le Du; C. Lidman; M. Mouchet; A. Mourão; E. S. Walker

doi:10.1051/0004-6361/200911847

The core-collapse rate from the Supernova Legacy Survey

G. Bazin^*, N. Palanque-Delabrouille, J. Rich, V. Ruhlmann-Kleider, E. Aubourg, L. Le Guillou, P. Astier, C. Balland, S. Basa, R. G. Carlberg, A. Conley, D. Fouchez, J. Guy, D. Hardin, I. M. Hook, D. A. Howell, R. Pain, K. Perrett, C. J. Pritchet, N. RegnaultM. Sullivan, P. Antilogus, V. Arsenijevic, S. Baurnont, S. Fabbro, J. Le Du, C. Lidman, M. Mouchet, A. Mourão, E. S. Walker

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

119 Citations (Scopus)

Abstract

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^-1 ₇₀ Mpc)^-3.

Original language	English
Pages (from-to)	653-660
Number of pages	8
Journal	Astronomy and Astrophysics
Volume	499
Issue number	3
DOIs	https://doi.org/10.1051/0004-6361/200911847
Publication status	Published - Jun 2009
Externally published	Yes

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Bazin, G., Palanque-Delabrouille, N., Rich, J., Ruhlmann-Kleider, V., Aubourg, E., Le Guillou, L., Astier, P., Balland, C., Basa, S., Carlberg, R. G., Conley, A., Fouchez, D., Guy, J., Hardin, D., Hook, I. M., Howell, D. A., Pain, R., Perrett, K., Pritchet, C. J., ... Walker, E. S. (2009). The core-collapse rate from the Supernova Legacy Survey. Astronomy and Astrophysics, 499(3), 653-660. https://doi.org/10.1051/0004-6361/200911847

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title = "The core-collapse rate from the Supernova Legacy Survey",

abstract = "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-1 70 Mpc)-3.",

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author = "G. Bazin and N. Palanque-Delabrouille and J. Rich and V. Ruhlmann-Kleider and E. Aubourg and {Le Guillou}, L. and P. Astier and C. Balland and S. Basa and Carlberg, {R. G.} and A. Conley and D. Fouchez and J. Guy and D. Hardin and Hook, {I. M.} and Howell, {D. A.} and R. Pain and K. Perrett and Pritchet, {C. J.} and N. Regnault and M. Sullivan and P. Antilogus and V. Arsenijevic and S. Baurnont and S. Fabbro and {Le Du}, J. and C. Lidman and M. Mouchet and A. Mour{\~a}o and Walker, {E. S.}",

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Bazin, G, Palanque-Delabrouille, N, Rich, J, Ruhlmann-Kleider, V, Aubourg, E, Le Guillou, L, Astier, P, Balland, C, Basa, S, Carlberg, RG, Conley, A, Fouchez, D, Guy, J, Hardin, D, Hook, IM, Howell, DA, Pain, R, Perrett, K, Pritchet, CJ, Regnault, N, Sullivan, M, Antilogus, P, Arsenijevic, V, Baurnont, S, Fabbro, S, Le Du, J, Lidman, C, Mouchet, M, Mourão, A & Walker, ES 2009, 'The core-collapse rate from the Supernova Legacy Survey', Astronomy and Astrophysics, vol. 499, no. 3, pp. 653-660. https://doi.org/10.1051/0004-6361/200911847

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T1 - The core-collapse rate from the Supernova Legacy Survey

AU - Bazin, G.

AU - Palanque-Delabrouille, N.

AU - Rich, J.

AU - Ruhlmann-Kleider, V.

AU - Aubourg, E.

AU - Le Guillou, L.

AU - Astier, P.

AU - Balland, C.

AU - Basa, S.

AU - Carlberg, R. G.

AU - Conley, A.

AU - Fouchez, D.

AU - Guy, J.

AU - Hardin, D.

AU - Hook, I. M.

AU - Howell, D. A.

AU - Pain, R.

AU - Perrett, K.

AU - Pritchet, C. J.

AU - Regnault, N.

AU - Sullivan, M.

AU - Antilogus, P.

AU - Arsenijevic, V.

AU - Baurnont, S.

AU - Fabbro, S.

AU - Le Du, J.

AU - Lidman, C.

AU - Mouchet, M.

AU - Mourão, A.

AU - Walker, E. S.

PY - 2009/6

Y1 - 2009/6

N2 - 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-1 70 Mpc)-3.

AB - 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-1 70 Mpc)-3.

KW - Stars: evolution

KW - Supernovae: general

KW - Surveys

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U2 - 10.1051/0004-6361/200911847

DO - 10.1051/0004-6361/200911847

M3 - Article

AN - SCOPUS:66949123141

SN - 0004-6361

VL - 499

SP - 653

EP - 660

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

IS - 3

ER -

The core-collapse rate from the Supernova Legacy Survey

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