The first Hubble diagram and cosmological constraints using superluminous supernovae Academic Article uri icon


  • ABSTRACT We present the first Hubble diagram of superluminous supernovae (SLSNe) out to a redshift of two, together with constraints on the matter density, M, and the dark energy equation-of-state parameter, w(p/). We build a sample of 20 cosmologically useful SLSNeI based on light curve and spectroscopy quality cuts. We confirm the robustness of the peakdecline SLSNI standardization relation with a larger data set and improved fitting techniques than previous works. We then solve the SLSN model based on the above standardization via minimization of the 2 computed from a covariance matrix that includes statistical and systematic uncertainties. For a spatially flat cold dark matter (CDM) cosmological model, we find $Omega _{
    m M}=0.38^{+0.24}_{-0.19}$, with an rms of 0.27mag for the residuals of the distance moduli. For a w0waCDM cosmological model, the addition of SLSNeI to a baseline measurement consisting of Planck temperature together with TypeIa supernovae, results in a small improvement in the constraints of w0 and wa of 4percent. We present simulations of future surveys with 868 and 492 SLSNeI (depending on the configuration used) and show that such a sample can deliver cosmological constraints in a flat CDM model with the same precision (considering only statistical uncertainties) as current surveys that use Type Ia supernovae, while providing a factor of 23 improvement in the precision of the constraints on the time variation of dark energy, w0 and wa. This paper represents the proof of concept for superluminous supernova cosmology, and demonstrates they can provide an independent test of cosmology in the high-redshift (z < 1) universe.

published proceedings


altmetric score

  • 13.83

author list (cited authors)

  • Inserra, C., Sullivan, M., Angus, C. R., Macaulay, E., Nichol, R. C., Smith, M., ... Tucker, B. E.

citation count

  • 8

complete list of authors

  • Inserra, C||Sullivan, M||Angus, CR||Macaulay, E||Nichol, RC||Smith, M||Frohmaier, C||Gutierrez, CP||Vicenzi, M||Moller, A||Brout, D||Brown, PJ||Davis, TM||D'Andrea, CB||Galbany, L||Kessler, R||Kim, AG||Pan, Y-C||Pursiainen, M||Scolnic, D||Thomas, BP||Wiseman, P||Abbott, TMC||Annis, J||Avila, S||Bertin, E||Brooks, D||Burke, DL||Carnero Rosell, A||Kind, M Carrasco||Carretero, J||Castander, FJ||Cawthon, R||Desai, S||Diehl, HT||Eifler, TF||Finley, DA||Flaugher, B||Fosalba, P||Frieman, J||Garcia-Bellido, J||Gaztanaga, E||Gerdes, DW||Giannantonio, T||Gruen, D||Gruendl, RA||Gschwend, J||Gutierrez, G||Hollowood, DL||Honscheid, K||James, DJ||Krause, E||Kuehn, K||Kuropatkin, N||Li, TS||Lidman, C||Lima, M||Maia, MAG||Marshall, JL||Martini, P||Menanteau, F||Miquel, R||Malagon, AA Plazas||Romer, AK||Roodman, A||Sako, M||Sanchez, E||Scarpine, V||Schubnell, M||Serrano, S||Sevilla-Noarbe, I||Soares-Santos, M||Sobreira, F||Suchyta, E||Swanson, MEC||Tarle, G||Thomas, D||Tucker, DL||Vikram, V||Walker, AR||Zhang, Y||Asorey, J||Calcino, J||Carollo, D||Glazebrook, K||Hinton, SR||Hoormann, JK||Lewis, GF||Sharp, R||Swann, E||Tucker, BE

publication date

  • January 2021