First cosmology results using Type IA supernovae from the dark energy survey: effects of chromatic corrections to supernova photometry on measurements of cosmological parameters

DES Collaboration; J. Lasker; R. Kessler; D. Scolnic; D. Brout; D. L. Burke; C. B. D'Andrea; T. M. Davis; S. R. Hinton; A. G. Kim; T. S. Li; C. Lidman; E. Macaulay; A. Möller; E. S. Rykoff; M. Sako; M. Smith; M. Sullivan; E. Swann; B. E. Tucker; W. Wester; B. A. Bassett; T. M.C. Abbott; S. Allam; J. Annis; S. Avila; K. Bechtol; E. Bertin; D. Brooks; A. Carnero Rosell; M. Carrasco Kind; J. Carretero; F. J. Castander; J. Calcino; D. Carollo; L. N. Da Costa; C. Davis; J. De Vicente; H. T. Diehl; P. Doel; A. Drlica-Wagner; B. Flaugher; J. Frieman; J. García-Bellido; E. Gaztanaga; D. Gruen; R. A. Gruendl; J. Gschwend; G. Gutierrez; D. L. Hollowood; K. Honscheid; J. K. Hoormann; D. J. James; S. Kent; E. Krause; R. Kron; K. Kuehn; N. Kuropatkin; M. Lima; M. A.G. Maia; J. L. Marshall; P. Martini; F. Menanteau; C. J. Miller; R. Miquel; A. A. Plazas; E. Sanchez; V. Scarpine; I. Sevilla-Noarbe; R. C. Smith; M. Soares-Santos; F. Sobreira; E. Suchyta; M. E. C. Swanson; G. Tarle; D. L. Tucker; A. R. Walker

doi:10.1093/mnras/stz619

First cosmology results using Type IA supernovae from the dark energy survey: effects of chromatic corrections to supernova photometry on measurements of cosmological parameters

DES Collaboration, J. Lasker^*, R. Kessler, D. Scolnic, D. Brout, D. L. Burke, C. B. D'Andrea, T. M. Davis, S. R. Hinton, A. G. Kim, T. S. Li, C. Lidman, E. Macaulay, A. Möller, E. S. Rykoff, M. Sako, M. Smith, M. Sullivan, E. Swann, B. E. TuckerW. Wester, B. A. Bassett, T. M.C. Abbott, S. Allam, J. Annis, S. Avila, K. Bechtol, E. Bertin, D. Brooks, A. Carnero Rosell, M. Carrasco Kind, J. Carretero, F. J. Castander, J. Calcino, D. Carollo, L. N. Da Costa, C. Davis, J. De Vicente, H. T. Diehl, P. Doel, A. Drlica-Wagner, B. Flaugher, J. Frieman, J. García-Bellido, E. Gaztanaga, D. Gruen, R. A. Gruendl, J. Gschwend, G. Gutierrez, D. L. Hollowood, K. Honscheid, J. K. Hoormann, D. J. James, S. Kent, E. Krause, R. Kron, K. Kuehn, N. Kuropatkin, M. Lima, M. A.G. Maia, J. L. Marshall, P. Martini, F. Menanteau, C. J. Miller, R. Miquel, A. A. Plazas, E. Sanchez, V. Scarpine, I. Sevilla-Noarbe, R. C. Smith, M. Soares-Santos, F. Sobreira, E. Suchyta, M. E. C. Swanson, G. Tarle, D. L. Tucker, A. R. Walker

^*Corresponding author for this work

Australian Astronomical Optics

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

20 Citations (Scopus)

Abstract

Calibration uncertainties have been the leading systematic uncertainty in recent analyses using Type Ia supernovae (SNe Ia) to measure cosmological parameters. To improve the calibration, we present the application of spectral energy distribution-dependent 'chromatic corrections' to the SN light-curve photometry from the Dark Energy Survey (DES). These corrections depend on the combined atmospheric and instrumental transmission function for each exposure, and they affect photometry at the 0.01 mag (1 per cent) level, comparable to systematic uncertainties in calibration and photometry. Fitting our combined DES and low-z SN Ia sample with baryon acoustic oscillation (BAO) and cosmic microwave background (CMB) priors for the cosmological parameters _m (the fraction of the critical density of the universe comprised of matter) and w (the dark energy equation of state parameter), we compare those parameters before and after applying the corrections. We find the change in w and _m due to not including chromatic corrections is −0.002 and 0.000, respectively, for the DES-SN3YR sample with BAO and CMB priors, consistent with a larger DES-SN3YR-like simulation, which has a w-change of 0.0005 with an uncertainty of 0.008 and an _m change of 0.000 with an uncertainty of 0.002. However, when considering samples on individual CCDs we find large redshift-dependent biases (∼0.02 in distance modulus) for SN distances.

Original language	English
Pages (from-to)	5329-5344
Number of pages	16
Journal	Monthly Notices of the Royal Astronomical Society
Volume	485
Issue number	4
DOIs	https://doi.org/10.1093/mnras/stz619
Publication status	Published - Jun 2019

Keywords

Cosmology: observations
Dark energy
Supernovae: general
Techniques: photometric

Access to Document

10.1093/mnras/stz619

Cite this

DES Collaboration, Lasker, J., Kessler, R., Scolnic, D., Brout, D., Burke, D. L., D'Andrea, C. B., Davis, T. M., Hinton, S. R., Kim, A. G., Li, T. S., Lidman, C., Macaulay, E., Möller, A., Rykoff, E. S., Sako, M., Smith, M., Sullivan, M., Swann, E., ... Walker, A. R. (2019). First cosmology results using Type IA supernovae from the dark energy survey: effects of chromatic corrections to supernova photometry on measurements of cosmological parameters. Monthly Notices of the Royal Astronomical Society, 485(4), 5329-5344. https://doi.org/10.1093/mnras/stz619

@article{7f028bc717964ca794fa12aa1b059088,

title = "First cosmology results using Type IA supernovae from the dark energy survey: effects of chromatic corrections to supernova photometry on measurements of cosmological parameters",

abstract = "Calibration uncertainties have been the leading systematic uncertainty in recent analyses using Type Ia supernovae (SNe Ia) to measure cosmological parameters. To improve the calibration, we present the application of spectral energy distribution-dependent 'chromatic corrections' to the SN light-curve photometry from the Dark Energy Survey (DES). These corrections depend on the combined atmospheric and instrumental transmission function for each exposure, and they affect photometry at the 0.01 mag (1 per cent) level, comparable to systematic uncertainties in calibration and photometry. Fitting our combined DES and low-z SN Ia sample with baryon acoustic oscillation (BAO) and cosmic microwave background (CMB) priors for the cosmological parameters m (the fraction of the critical density of the universe comprised of matter) and w (the dark energy equation of state parameter), we compare those parameters before and after applying the corrections. We find the change in w and m due to not including chromatic corrections is −0.002 and 0.000, respectively, for the DES-SN3YR sample with BAO and CMB priors, consistent with a larger DES-SN3YR-like simulation, which has a w-change of 0.0005 with an uncertainty of 0.008 and an m change of 0.000 with an uncertainty of 0.002. However, when considering samples on individual CCDs we find large redshift-dependent biases (∼0.02 in distance modulus) for SN distances.",

keywords = "Cosmology: observations, Dark energy, Supernovae: general, Techniques: photometric",

author = "{DES Collaboration} and J. Lasker and R. Kessler and D. Scolnic and D. Brout and Burke, {D. L.} and D'Andrea, {C. B.} and Davis, {T. M.} and Hinton, {S. R.} and Kim, {A. G.} and Li, {T. S.} and C. Lidman and E. Macaulay and A. M{\"o}ller and Rykoff, {E. S.} and M. Sako and M. Smith and M. Sullivan and E. Swann and Tucker, {B. E.} and W. Wester and Bassett, {B. A.} and Abbott, {T. M.C.} and S. Allam and J. Annis and S. Avila and K. Bechtol and E. Bertin and D. Brooks and {Carnero Rosell}, A. and {Carrasco Kind}, M. and J. Carretero and Castander, {F. J.} and J. Calcino and D. Carollo and {Da Costa}, {L. N.} and C. Davis and {De Vicente}, J. and Diehl, {H. T.} and P. Doel and A. Drlica-Wagner and B. Flaugher and J. Frieman and J. Garc{\'i}a-Bellido and E. Gaztanaga and D. Gruen and Gruendl, {R. A.} and J. Gschwend and G. Gutierrez and Hollowood, {D. L.} and K. Honscheid and Hoormann, {J. K.} and James, {D. J.} and S. Kent and E. Krause and R. Kron and K. Kuehn and N. Kuropatkin and M. Lima and Maia, {M. A.G.} and Marshall, {J. L.} and P. Martini and F. Menanteau and Miller, {C. J.} and R. Miquel and Plazas, {A. A.} and E. Sanchez and V. Scarpine and I. Sevilla-Noarbe and Smith, {R. C.} and M. Soares-Santos and F. Sobreira and E. Suchyta and Swanson, {M. E. C.} and G. Tarle and Tucker, {D. L.} and Walker, {A. R.}",

year = "2019",

month = jun,

doi = "10.1093/mnras/stz619",

language = "English",

volume = "485",

pages = "5329--5344",

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

issn = "0035-8711",

publisher = "Oxford University Press",

number = "4",

}

DES Collaboration, Lasker, J, Kessler, R, Scolnic, D, Brout, D, Burke, DL, D'Andrea, CB, Davis, TM, Hinton, SR, Kim, AG, Li, TS, Lidman, C, Macaulay, E, Möller, A, Rykoff, ES, Sako, M, Smith, M, Sullivan, M, Swann, E, Tucker, BE, Wester, W, Bassett, BA, Abbott, TMC, Allam, S, Annis, J, Avila, S, Bechtol, K, Bertin, E, Brooks, D, Carnero Rosell, A, Carrasco Kind, M, Carretero, J, Castander, FJ, Calcino, J, Carollo, D, Da Costa, LN, Davis, C, De Vicente, J, Diehl, HT, Doel, P, Drlica-Wagner, A, Flaugher, B, Frieman, J, García-Bellido, J, Gaztanaga, E, Gruen, D, Gruendl, RA, Gschwend, J, Gutierrez, G, Hollowood, DL, Honscheid, K, Hoormann, JK, James, DJ, Kent, S, Krause, E, Kron, R, Kuehn, K, Kuropatkin, N, Lima, M, Maia, MAG, Marshall, JL, Martini, P, Menanteau, F, Miller, CJ, Miquel, R, Plazas, AA, Sanchez, E, Scarpine, V, Sevilla-Noarbe, I, Smith, RC, Soares-Santos, M, Sobreira, F, Suchyta, E, Swanson, MEC, Tarle, G, Tucker, DL & Walker, AR 2019, 'First cosmology results using Type IA supernovae from the dark energy survey: effects of chromatic corrections to supernova photometry on measurements of cosmological parameters', Monthly Notices of the Royal Astronomical Society, vol. 485, no. 4, pp. 5329-5344. https://doi.org/10.1093/mnras/stz619

First cosmology results using Type IA supernovae from the dark energy survey: effects of chromatic corrections to supernova photometry on measurements of cosmological parameters. / DES Collaboration; Lasker, J.; Kessler, R. et al.
In: Monthly Notices of the Royal Astronomical Society, Vol. 485, No. 4, 06.2019, p. 5329-5344.

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

TY - JOUR

T1 - First cosmology results using Type IA supernovae from the dark energy survey

T2 - effects of chromatic corrections to supernova photometry on measurements of cosmological parameters

AU - DES Collaboration

AU - Lasker, J.

AU - Kessler, R.

AU - Scolnic, D.

AU - Brout, D.

AU - Burke, D. L.

AU - D'Andrea, C. B.

AU - Davis, T. M.

AU - Hinton, S. R.

AU - Kim, A. G.

AU - Li, T. S.

AU - Lidman, C.

AU - Macaulay, E.

AU - Möller, A.

AU - Rykoff, E. S.

AU - Sako, M.

AU - Smith, M.

AU - Sullivan, M.

AU - Swann, E.

AU - Tucker, B. E.

AU - Wester, W.

AU - Bassett, B. A.

AU - Abbott, T. M.C.

AU - Allam, S.

AU - Annis, J.

AU - Avila, S.

AU - Bechtol, K.

AU - Bertin, E.

AU - Brooks, D.

AU - Carnero Rosell, A.

AU - Carrasco Kind, M.

AU - Carretero, J.

AU - Castander, F. J.

AU - Calcino, J.

AU - Carollo, D.

AU - Da Costa, L. N.

AU - Davis, C.

AU - De Vicente, J.

AU - Diehl, H. T.

AU - Doel, P.

AU - Drlica-Wagner, A.

AU - Flaugher, B.

AU - Frieman, J.

AU - García-Bellido, J.

AU - Gaztanaga, E.

AU - Gruen, D.

AU - Gruendl, R. A.

AU - Gschwend, J.

AU - Gutierrez, G.

AU - Hollowood, D. L.

AU - Honscheid, K.

AU - Hoormann, J. K.

AU - James, D. J.

AU - Kent, S.

AU - Krause, E.

AU - Kron, R.

AU - Kuehn, K.

AU - Kuropatkin, N.

AU - Lima, M.

AU - Maia, M. A.G.

AU - Marshall, J. L.

AU - Martini, P.

AU - Menanteau, F.

AU - Miller, C. J.

AU - Miquel, R.

AU - Plazas, A. A.

AU - Sanchez, E.

AU - Scarpine, V.

AU - Sevilla-Noarbe, I.

AU - Smith, R. C.

AU - Soares-Santos, M.

AU - Sobreira, F.

AU - Suchyta, E.

AU - Swanson, M. E. C.

AU - Tarle, G.

AU - Tucker, D. L.

AU - Walker, A. R.

PY - 2019/6

Y1 - 2019/6

N2 - Calibration uncertainties have been the leading systematic uncertainty in recent analyses using Type Ia supernovae (SNe Ia) to measure cosmological parameters. To improve the calibration, we present the application of spectral energy distribution-dependent 'chromatic corrections' to the SN light-curve photometry from the Dark Energy Survey (DES). These corrections depend on the combined atmospheric and instrumental transmission function for each exposure, and they affect photometry at the 0.01 mag (1 per cent) level, comparable to systematic uncertainties in calibration and photometry. Fitting our combined DES and low-z SN Ia sample with baryon acoustic oscillation (BAO) and cosmic microwave background (CMB) priors for the cosmological parameters m (the fraction of the critical density of the universe comprised of matter) and w (the dark energy equation of state parameter), we compare those parameters before and after applying the corrections. We find the change in w and m due to not including chromatic corrections is −0.002 and 0.000, respectively, for the DES-SN3YR sample with BAO and CMB priors, consistent with a larger DES-SN3YR-like simulation, which has a w-change of 0.0005 with an uncertainty of 0.008 and an m change of 0.000 with an uncertainty of 0.002. However, when considering samples on individual CCDs we find large redshift-dependent biases (∼0.02 in distance modulus) for SN distances.

AB - Calibration uncertainties have been the leading systematic uncertainty in recent analyses using Type Ia supernovae (SNe Ia) to measure cosmological parameters. To improve the calibration, we present the application of spectral energy distribution-dependent 'chromatic corrections' to the SN light-curve photometry from the Dark Energy Survey (DES). These corrections depend on the combined atmospheric and instrumental transmission function for each exposure, and they affect photometry at the 0.01 mag (1 per cent) level, comparable to systematic uncertainties in calibration and photometry. Fitting our combined DES and low-z SN Ia sample with baryon acoustic oscillation (BAO) and cosmic microwave background (CMB) priors for the cosmological parameters m (the fraction of the critical density of the universe comprised of matter) and w (the dark energy equation of state parameter), we compare those parameters before and after applying the corrections. We find the change in w and m due to not including chromatic corrections is −0.002 and 0.000, respectively, for the DES-SN3YR sample with BAO and CMB priors, consistent with a larger DES-SN3YR-like simulation, which has a w-change of 0.0005 with an uncertainty of 0.008 and an m change of 0.000 with an uncertainty of 0.002. However, when considering samples on individual CCDs we find large redshift-dependent biases (∼0.02 in distance modulus) for SN distances.

KW - Cosmology: observations

KW - Dark energy

KW - Supernovae: general

KW - Techniques: photometric

UR - http://www.scopus.com/inward/record.url?scp=85064467930&partnerID=8YFLogxK

U2 - 10.1093/mnras/stz619

DO - 10.1093/mnras/stz619

M3 - Article

AN - SCOPUS:85064467930

SN - 0035-8711

VL - 485

SP - 5329

EP - 5344

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 4

ER -

First cosmology results using Type IA supernovae from the dark energy survey: effects of chromatic corrections to supernova photometry on measurements of cosmological parameters

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this