no code implementations • 14 Dec 2020 • J. D. R. Pierel, D. O. Jones, M. Dai, D. Q. Adams, R. Kessler, S. Rodney, M. R. Siebert, R. J. Foley, W. D. Kenworthy, D. Scolnic
By using BYOSED for SN Ia cosmology simulations, future analyses (e. g., Rubin and Roman SN Ia samples) will have greater flexibility to constrain or reduce such SN Ia modeling uncertainties.
Cosmology and Nongalactic Astrophysics
no code implementations • 27 Feb 2020 • B. M. Rose, D. Rubin, A. Cikota, S. E. Deustua, S. Dixon, A. Fruchter, D. O. Jones, A. G. Riess, D. M. Scolnic
We reanalyze this sample of hosts using both the original method and a Bayesian hierarchical model and find after a fuller accounting of the uncertainties the significance of a dependence on age to be $\leq2\sigma$ and $\sim1\sigma$ after the removal of a single poorly-sampled SN Ia.
Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies
2 code implementations • 2 Oct 2017 • D. M. Scolnic, D. O. Jones, A. Rest, Y. C. Pan, R. Chornock, R. J. Foley, M. E. Huber, R. Kessler, G. Narayan, A. G. Riess, S. Rodney, E. Berger, D. J. Brout, P. J. Challis, M. Drout, D. Finkbeiner, R. Lunnan, R. P. Kirshner, N. E. Sanders, E. Schlafly, S. Smartt, C. W. Stubbs, J. Tonry, W. M. Wood-Vasey, M. Foley, J. Hand, E. Johnson, W. S. Burgett, K. C. Chambers, P. W. Draper, K. W. Hodapp, N. Kaiser, R. P. Kudritzki, E. A. Magnier, N. Metcalfe, F. Bresolin, E. Gall, R. Kotak, M. McCrum, K. W. Smith
When the SN and CMB constraints are combined with constraints from BAO and local H0 measurements, the analysis yields the most precise measurement of dark energy to date: $w0 = -1. 007\pm 0. 089$ and $wa = -0. 222 \pm0. 407$ for the w0waCDM model.
Cosmology and Nongalactic Astrophysics
