Cosmological constraints from measurements of type Ia supernovae discovered during the first 1.5 yr of the Pan-STARRS1 survey

A. Rest; D. Scolnic; R. J. Foley; M. E. Huber; R. Chornock; G. Narayan; J. L. Tonry; E. Berger; A. M. Soderberg; C. W. Stubbs; A. Riess; R. P. Kirshner; S. J. Smartt; E. Schlafly; S. Rodney; M. T. Botticella; D. Brout; P. Challis; I. Czekala; M. Drout; M. J. Hudson; R. Kotak; C. Leibler; R. Lunnan; G. H. Marion; M. McCrum; D. Milisavljevic; A. Pastorello; N. E. Sanders; K. Smith; E. Stafford; D. Thilker; S. Valenti; W. M. Wood-Vasey; Z. Zheng; W. S. Burgett; K. C. Chambers; L. Denneau; P. W. Draper; H. Flewelling; K. W. Hodapp; N. Kaiser; R.-P. Kudritzki; E. A. Magnier; N. Metcalfe; P. A. Price; W. Sweeney; R. Wainscoat; C. Waters

doi:10.1088/0004-637X/795/1/44

Cosmological constraints from measurements of type Ia supernovae discovered during the first 1.5 yr of the Pan-STARRS1 survey

A. Rest
, D. Scolnic
, R. J. Foley
, M. E. Huber
, R. Chornock
, G. Narayan
, J. L. Tonry
, E. Berger
, A. M. Soderberg
, C. W. Stubbs
, A. Riess
, R. P. Kirshner
, S. J. Smartt
, E. Schlafly
, S. Rodney
, M. T. Botticella
, D. Brout
, P. Challis
, I. Czekala
, M. Drout

M. J. Hudson, R. Kotak, C. Leibler, R. Lunnan, G. H. Marion, M. McCrum, D. Milisavljevic, A. Pastorello, N. E. Sanders, K. Smith, E. Stafford, D. Thilker, S. Valenti, W. M. Wood-Vasey, Z. Zheng, W. S. Burgett, K. C. Chambers, L. Denneau, P. W. Draper, H. Flewelling, K. W. Hodapp, N. Kaiser, R.-P. Kudritzki, E. A. Magnier, N. Metcalfe, P. A. Price, W. Sweeney, R. Wainscoat, C. Waters

School of Physics and Astronomy

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

Abstract

We present griz_P1 light curves of 146 spectroscopically confirmed Type Ia supernovae (SNe Ia 0.03 < z < 0.65) discovered during the first 1.5 yr of the Pan-STARRS1 Medium Deep Survey. The Pan-STARRS1 natural photometric system is determined by a combination of on-site measurements of the instrument response function and observations of spectrophotometric standard stars. We find that the systematic uncertainties in the photometric system are currently 1.2% without accounting for the uncertainty in the Hubble Space Telescope Calspec definition of the AB system. A Hubble diagram is constructed with a subset of 113 out of 146 SNe Ia that pass our light curve quality cuts. The cosmological fit to 310 SNe Ia (113 PS1 SNe Ia + 222 light curves from 197 low-z SNe Ia), using only supernovae (SNe) and assuming a constant dark energy equation of state and flatness, yields w=-1.120^+0.360_-0.206(Stat) ^+0.269_-0.291(Sys). When combined with BAO+CMB(Planck)+H 0, the analysis yields Ω_M=0.280^+0.013_-0.012 and w=-1.166^+0.072_-0.069 including all identified systematics. The value of w is inconsistent with the cosmological constant value of -1 at the 2.3σ level. Tension endures after removing either the baryon acoustic oscillation (BAO) or the H₀ constraint, though it is strongest when including the H 0 constraint. If we include WMAP9 cosmic microwave background (CMB) constraints instead of those from Planck, we find w=-1.124^+0.083_-0.065, which diminishes the discord to

Original language	English
Article number	44
Number of pages	34
Journal	Astrophysical Journal
Volume	795
Issue number	1
Early online date	13 Oct 2014
DOIs	https://doi.org/10.1088/0004-637X/795/1/44
Publication status	Published - 1 Nov 2014

Keywords

Cosmological parameters
Cosmology: observations
Dark energy
Supernovae: general

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10.1088/0004-637X/795/1/44

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Copyright © 2014 The American Astronomical Society. All rights reserved. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1088/0004-637X/795/1/44.
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Rest, A., Scolnic, D., Foley, R. J., Huber, M. E., Chornock, R., Narayan, G., Tonry, J. L., Berger, E., Soderberg, A. M., Stubbs, C. W., Riess, A., Kirshner, R. P., Smartt, S. J., Schlafly, E., Rodney, S., Botticella, M. T., Brout, D., Challis, P., Czekala, I., ... Waters, C. (2014). Cosmological constraints from measurements of type Ia supernovae discovered during the first 1.5 yr of the Pan-STARRS1 survey. Astrophysical Journal, 795(1), Article 44. https://doi.org/10.1088/0004-637X/795/1/44

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title = "Cosmological constraints from measurements of type Ia supernovae discovered during the first 1.5 yr of the Pan-STARRS1 survey",

abstract = "We present grizP1 light curves of 146 spectroscopically confirmed Type Ia supernovae (SNe Ia 0.03 < z < 0.65) discovered during the first 1.5 yr of the Pan-STARRS1 Medium Deep Survey. The Pan-STARRS1 natural photometric system is determined by a combination of on-site measurements of the instrument response function and observations of spectrophotometric standard stars. We find that the systematic uncertainties in the photometric system are currently 1.2\% without accounting for the uncertainty in the Hubble Space Telescope Calspec definition of the AB system. A Hubble diagram is constructed with a subset of 113 out of 146 SNe Ia that pass our light curve quality cuts. The cosmological fit to 310 SNe Ia (113 PS1 SNe Ia + 222 light curves from 197 low-z SNe Ia), using only supernovae (SNe) and assuming a constant dark energy equation of state and flatness, yields w=-1.120+0.360-0.206(Stat) +0.269-0.291(Sys). When combined with BAO+CMB(Planck)+H 0, the analysis yields ΩM=0.280+0.013-0.012 and w=-1.166+0.072-0.069 including all identified systematics. The value of w is inconsistent with the cosmological constant value of -1 at the 2.3σ level. Tension endures after removing either the baryon acoustic oscillation (BAO) or the H0 constraint, though it is strongest when including the H 0 constraint. If we include WMAP9 cosmic microwave background (CMB) constraints instead of those from Planck, we find w=-1.124+0.083-0.065, which diminishes the discord to ",

keywords = "Cosmological parameters, Cosmology: observations, Dark energy, Supernovae: general",

author = "A. Rest and D. Scolnic and Foley, \{R. J.\} and Huber, \{M. E.\} and R. Chornock and G. Narayan and Tonry, \{J. L.\} and E. Berger and Soderberg, \{A. M.\} and Stubbs, \{C. W.\} and A. Riess and Kirshner, \{R. P.\} and Smartt, \{S. J.\} and E. Schlafly and S. Rodney and Botticella, \{M. T.\} and D. Brout and P. Challis and I. Czekala and M. Drout and Hudson, \{M. J.\} and R. Kotak and C. Leibler and R. Lunnan and Marion, \{G. H.\} and M. McCrum and D. Milisavljevic and A. Pastorello and Sanders, \{N. E.\} and K. Smith and E. Stafford and D. Thilker and S. Valenti and Wood-Vasey, \{W. M.\} and Z. Zheng and Burgett, \{W. S.\} and Chambers, \{K. C.\} and L. Denneau and Draper, \{P. W.\} and H. Flewelling and Hodapp, \{K. W.\} and N. Kaiser and R.-P. Kudritzki and Magnier, \{E. A.\} and N. Metcalfe and Price, \{P. A.\} and W. Sweeney and R. Wainscoat and C. Waters",

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day = "1",

doi = "10.1088/0004-637X/795/1/44",

language = "English",

volume = "795",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

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Rest, A, Scolnic, D, Foley, RJ, Huber, ME, Chornock, R, Narayan, G, Tonry, JL, Berger, E, Soderberg, AM, Stubbs, CW, Riess, A, Kirshner, RP, Smartt, SJ, Schlafly, E, Rodney, S, Botticella, MT, Brout, D, Challis, P, Czekala, I, Drout, M, Hudson, MJ, Kotak, R, Leibler, C, Lunnan, R, Marion, GH, McCrum, M, Milisavljevic, D, Pastorello, A, Sanders, NE, Smith, K, Stafford, E, Thilker, D, Valenti, S, Wood-Vasey, WM, Zheng, Z, Burgett, WS, Chambers, KC, Denneau, L, Draper, PW, Flewelling, H, Hodapp, KW, Kaiser, N, Kudritzki, R-P, Magnier, EA, Metcalfe, N, Price, PA, Sweeney, W, Wainscoat, R & Waters, C 2014, 'Cosmological constraints from measurements of type Ia supernovae discovered during the first 1.5 yr of the Pan-STARRS1 survey', Astrophysical Journal, vol. 795, no. 1, 44. https://doi.org/10.1088/0004-637X/795/1/44

TY - JOUR

T1 - Cosmological constraints from measurements of type Ia supernovae discovered during the first 1.5 yr of the Pan-STARRS1 survey

AU - Rest, A.

AU - Scolnic, D.

AU - Foley, R. J.

AU - Huber, M. E.

AU - Chornock, R.

AU - Narayan, G.

AU - Tonry, J. L.

AU - Berger, E.

AU - Soderberg, A. M.

AU - Stubbs, C. W.

AU - Riess, A.

AU - Kirshner, R. P.

AU - Smartt, S. J.

AU - Schlafly, E.

AU - Rodney, S.

AU - Botticella, M. T.

AU - Brout, D.

AU - Challis, P.

AU - Czekala, I.

AU - Drout, M.

AU - Hudson, M. J.

AU - Kotak, R.

AU - Leibler, C.

AU - Lunnan, R.

AU - Marion, G. H.

AU - McCrum, M.

AU - Milisavljevic, D.

AU - Pastorello, A.

AU - Sanders, N. E.

AU - Smith, K.

AU - Stafford, E.

AU - Thilker, D.

AU - Valenti, S.

AU - Wood-Vasey, W. M.

AU - Zheng, Z.

AU - Burgett, W. S.

AU - Chambers, K. C.

AU - Denneau, L.

AU - Draper, P. W.

AU - Flewelling, H.

AU - Hodapp, K. W.

AU - Kaiser, N.

AU - Kudritzki, R.-P.

AU - Magnier, E. A.

AU - Metcalfe, N.

AU - Price, P. A.

AU - Sweeney, W.

AU - Wainscoat, R.

AU - Waters, C.

PY - 2014/11/1

Y1 - 2014/11/1

N2 - We present grizP1 light curves of 146 spectroscopically confirmed Type Ia supernovae (SNe Ia 0.03 < z < 0.65) discovered during the first 1.5 yr of the Pan-STARRS1 Medium Deep Survey. The Pan-STARRS1 natural photometric system is determined by a combination of on-site measurements of the instrument response function and observations of spectrophotometric standard stars. We find that the systematic uncertainties in the photometric system are currently 1.2% without accounting for the uncertainty in the Hubble Space Telescope Calspec definition of the AB system. A Hubble diagram is constructed with a subset of 113 out of 146 SNe Ia that pass our light curve quality cuts. The cosmological fit to 310 SNe Ia (113 PS1 SNe Ia + 222 light curves from 197 low-z SNe Ia), using only supernovae (SNe) and assuming a constant dark energy equation of state and flatness, yields w=-1.120+0.360-0.206(Stat) +0.269-0.291(Sys). When combined with BAO+CMB(Planck)+H 0, the analysis yields ΩM=0.280+0.013-0.012 and w=-1.166+0.072-0.069 including all identified systematics. The value of w is inconsistent with the cosmological constant value of -1 at the 2.3σ level. Tension endures after removing either the baryon acoustic oscillation (BAO) or the H0 constraint, though it is strongest when including the H 0 constraint. If we include WMAP9 cosmic microwave background (CMB) constraints instead of those from Planck, we find w=-1.124+0.083-0.065, which diminishes the discord to

AB - We present grizP1 light curves of 146 spectroscopically confirmed Type Ia supernovae (SNe Ia 0.03 < z < 0.65) discovered during the first 1.5 yr of the Pan-STARRS1 Medium Deep Survey. The Pan-STARRS1 natural photometric system is determined by a combination of on-site measurements of the instrument response function and observations of spectrophotometric standard stars. We find that the systematic uncertainties in the photometric system are currently 1.2% without accounting for the uncertainty in the Hubble Space Telescope Calspec definition of the AB system. A Hubble diagram is constructed with a subset of 113 out of 146 SNe Ia that pass our light curve quality cuts. The cosmological fit to 310 SNe Ia (113 PS1 SNe Ia + 222 light curves from 197 low-z SNe Ia), using only supernovae (SNe) and assuming a constant dark energy equation of state and flatness, yields w=-1.120+0.360-0.206(Stat) +0.269-0.291(Sys). When combined with BAO+CMB(Planck)+H 0, the analysis yields ΩM=0.280+0.013-0.012 and w=-1.166+0.072-0.069 including all identified systematics. The value of w is inconsistent with the cosmological constant value of -1 at the 2.3σ level. Tension endures after removing either the baryon acoustic oscillation (BAO) or the H0 constraint, though it is strongest when including the H 0 constraint. If we include WMAP9 cosmic microwave background (CMB) constraints instead of those from Planck, we find w=-1.124+0.083-0.065, which diminishes the discord to

KW - Cosmological parameters

KW - Cosmology: observations

KW - Dark energy

KW - Supernovae: general

U2 - 10.1088/0004-637X/795/1/44

DO - 10.1088/0004-637X/795/1/44

M3 - Article

SN - 0004-637X

VL - 795

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

M1 - 44

ER -

Cosmological constraints from measurements of type Ia supernovae discovered during the first 1.5 yr of the Pan-STARRS1 survey

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Keywords

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