Type Ia supernova bolometric light curves and ejected mass estimates from the nearby supernova factory

R. Scalzo; G. Aldering; P. Antilogus; C. Aragon; S. Bailey; C. Baltay; S. Bongard; C. Buton; F. Cellier-Holzem; M. Childress; N. Chotard; Y. Copin; H. K. Fakhouri; E. Gangler; J. Guy; A. G. Kim; M. Kowalski; M. Kromer; J. Nordin; P. Nugent; K. Paech; R. Pain; E. Pecontal; R. Pereira; S. Perlmutter; D. Rabinowitz; M. Rigault; K. Runge; C. Saunders; S. A. Sim; G. Smadja; C. Tao; S. Taubenberger; R. C. Thomas; B. A. Weaver

doi:10.1093/mnras/stu350

Type Ia supernova bolometric light curves and ejected mass estimates from the nearby supernova factory

R. Scalzo^*, G. Aldering, P. Antilogus, C. Aragon, S. Bailey, C. Baltay, S. Bongard, C. Buton, F. Cellier-Holzem, M. Childress, N. Chotard, Y. Copin, H. K. Fakhouri, E. Gangler, J. Guy, A. G. Kim, M. Kowalski, M. Kromer, J. Nordin, P. NugentK. Paech, R. Pain, E. Pecontal, R. Pereira, S. Perlmutter, D. Rabinowitz, M. Rigault, K. Runge, C. Saunders, S. A. Sim, G. Smadja, C. Tao, S. Taubenberger, R. C. Thomas, B. A. Weaver

^*Corresponding author for this work

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

103 Citations (Scopus)

Abstract

We present a sample of normal Type Ia supernovae (SNe Ia) from the Nearby Supernova Factory data set with spectrophotometry at sufficiently late phases to estimate the ejected mass using the bolometric light curve.Wemeasure ⁵⁶ Ni masses from the peak bolometric luminosity, then compare the luminosity in the ⁵⁶Co-decay tail to the expected rate of radioactive energy release from ejecta of a given mass. We infer the ejected mass in a Bayesian context using a semi-analytic model of the ejecta, incorporating constraints from contemporary numerical models as priors on the density structure and distribution of ⁵⁶Ni throughout the ejecta. We find a strong correlation between ejected mass and light-curve decline rate, and consequently ⁵⁶Ni mass, with ejected masses in our data ranging from 0.9 to 1.4 M_⊙. Most fast-declining (SALT2 x₁ < -1) normal SNe Ia have significantly sub-Chandrasekhar ejected masses in our fiducial analysis.

Original language	English
Pages (from-to)	1498-1518
Number of pages	21
Journal	Monthly Notices of the Royal Astronomical Society
Volume	440
Issue number	2
DOIs	https://doi.org/10.1093/mnras/stu350
Publication status	Published - May 2014

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Scalzo, R., Aldering, G., Antilogus, P., Aragon, C., Bailey, S., Baltay, C., Bongard, S., Buton, C., Cellier-Holzem, F., Childress, M., Chotard, N., Copin, Y., Fakhouri, H. K., Gangler, E., Guy, J., Kim, A. G., Kowalski, M., Kromer, M., Nordin, J., ... Weaver, B. A. (2014). Type Ia supernova bolometric light curves and ejected mass estimates from the nearby supernova factory. Monthly Notices of the Royal Astronomical Society, 440(2), 1498-1518. https://doi.org/10.1093/mnras/stu350

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title = "Type Ia supernova bolometric light curves and ejected mass estimates from the nearby supernova factory",

abstract = "We present a sample of normal Type Ia supernovae (SNe Ia) from the Nearby Supernova Factory data set with spectrophotometry at sufficiently late phases to estimate the ejected mass using the bolometric light curve.Wemeasure 56 Ni masses from the peak bolometric luminosity, then compare the luminosity in the 56Co-decay tail to the expected rate of radioactive energy release from ejecta of a given mass. We infer the ejected mass in a Bayesian context using a semi-analytic model of the ejecta, incorporating constraints from contemporary numerical models as priors on the density structure and distribution of 56Ni throughout the ejecta. We find a strong correlation between ejected mass and light-curve decline rate, and consequently 56Ni mass, with ejected masses in our data ranging from 0.9 to 1.4 M⊙. Most fast-declining (SALT2 x1 < -1) normal SNe Ia have significantly sub-Chandrasekhar ejected masses in our fiducial analysis.",

keywords = "General-white dwarfs-cosmology, Observations-dark energy, Supernovae",

author = "R. Scalzo and G. Aldering and P. Antilogus and C. Aragon and S. Bailey and C. Baltay and S. Bongard and C. Buton and F. Cellier-Holzem and M. Childress and N. Chotard and Y. Copin and Fakhouri, {H. K.} and E. Gangler and J. Guy and Kim, {A. G.} and M. Kowalski and M. Kromer and J. Nordin and P. Nugent and K. Paech and R. Pain and E. Pecontal and R. Pereira and S. Perlmutter and D. Rabinowitz and M. Rigault and K. Runge and C. Saunders and Sim, {S. A.} and G. Smadja and C. Tao and S. Taubenberger and Thomas, {R. C.} and Weaver, {B. A.}",

year = "2014",

month = may,

doi = "10.1093/mnras/stu350",

language = "English",

volume = "440",

pages = "1498--1518",

journal = "Monthly Notices of the Royal Astronomical Society",

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Scalzo, R, Aldering, G, Antilogus, P, Aragon, C, Bailey, S, Baltay, C, Bongard, S, Buton, C, Cellier-Holzem, F, Childress, M, Chotard, N, Copin, Y, Fakhouri, HK, Gangler, E, Guy, J, Kim, AG, Kowalski, M, Kromer, M, Nordin, J, Nugent, P, Paech, K, Pain, R, Pecontal, E, Pereira, R, Perlmutter, S, Rabinowitz, D, Rigault, M, Runge, K, Saunders, C, Sim, SA, Smadja, G, Tao, C, Taubenberger, S, Thomas, RC & Weaver, BA 2014, 'Type Ia supernova bolometric light curves and ejected mass estimates from the nearby supernova factory', Monthly Notices of the Royal Astronomical Society, vol. 440, no. 2, pp. 1498-1518. https://doi.org/10.1093/mnras/stu350

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T1 - Type Ia supernova bolometric light curves and ejected mass estimates from the nearby supernova factory

AU - Scalzo, R.

AU - Aldering, G.

AU - Antilogus, P.

AU - Aragon, C.

AU - Bailey, S.

AU - Baltay, C.

AU - Bongard, S.

AU - Buton, C.

AU - Cellier-Holzem, F.

AU - Childress, M.

AU - Chotard, N.

AU - Copin, Y.

AU - Fakhouri, H. K.

AU - Gangler, E.

AU - Guy, J.

AU - Kim, A. G.

AU - Kowalski, M.

AU - Kromer, M.

AU - Nordin, J.

AU - Nugent, P.

AU - Paech, K.

AU - Pain, R.

AU - Pecontal, E.

AU - Pereira, R.

AU - Perlmutter, S.

AU - Rabinowitz, D.

AU - Rigault, M.

AU - Runge, K.

AU - Saunders, C.

AU - Sim, S. A.

AU - Smadja, G.

AU - Tao, C.

AU - Taubenberger, S.

AU - Thomas, R. C.

AU - Weaver, B. A.

PY - 2014/5

Y1 - 2014/5

N2 - We present a sample of normal Type Ia supernovae (SNe Ia) from the Nearby Supernova Factory data set with spectrophotometry at sufficiently late phases to estimate the ejected mass using the bolometric light curve.Wemeasure 56 Ni masses from the peak bolometric luminosity, then compare the luminosity in the 56Co-decay tail to the expected rate of radioactive energy release from ejecta of a given mass. We infer the ejected mass in a Bayesian context using a semi-analytic model of the ejecta, incorporating constraints from contemporary numerical models as priors on the density structure and distribution of 56Ni throughout the ejecta. We find a strong correlation between ejected mass and light-curve decline rate, and consequently 56Ni mass, with ejected masses in our data ranging from 0.9 to 1.4 M⊙. Most fast-declining (SALT2 x1 < -1) normal SNe Ia have significantly sub-Chandrasekhar ejected masses in our fiducial analysis.

AB - We present a sample of normal Type Ia supernovae (SNe Ia) from the Nearby Supernova Factory data set with spectrophotometry at sufficiently late phases to estimate the ejected mass using the bolometric light curve.Wemeasure 56 Ni masses from the peak bolometric luminosity, then compare the luminosity in the 56Co-decay tail to the expected rate of radioactive energy release from ejecta of a given mass. We infer the ejected mass in a Bayesian context using a semi-analytic model of the ejecta, incorporating constraints from contemporary numerical models as priors on the density structure and distribution of 56Ni throughout the ejecta. We find a strong correlation between ejected mass and light-curve decline rate, and consequently 56Ni mass, with ejected masses in our data ranging from 0.9 to 1.4 M⊙. Most fast-declining (SALT2 x1 < -1) normal SNe Ia have significantly sub-Chandrasekhar ejected masses in our fiducial analysis.

KW - General-white dwarfs-cosmology

KW - Observations-dark energy

KW - Supernovae

UR - http://www.scopus.com/inward/record.url?scp=84899029694&partnerID=8YFLogxK

U2 - 10.1093/mnras/stu350

DO - 10.1093/mnras/stu350

M3 - Article

SN - 0035-8711

VL - 440

SP - 1498

EP - 1518

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 2

ER -

Type Ia supernova bolometric light curves and ejected mass estimates from the nearby supernova factory

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