The Astrophysical Journal (Jan 2024)

Carnegie Supernova Project I and II: Measurements of H 0 Using Cepheid, Tip of the Red Giant Branch, and Surface Brightness Fluctuation Distance Calibration to Type Ia Supernovae

  • Syed A. Uddin,
  • Christopher R. Burns,
  • M M. Phillips,
  • Nicholas B. Suntzeff,
  • Wendy L. Freedman,
  • Peter J. Brown,
  • Nidia Morrell,
  • Mario Hamuy,
  • Kevin Krisciunas,
  • Lifan Wang,
  • Eric Y. Hsiao,
  • Ariel Goobar,
  • Saul Perlmutter,
  • Jing Lu,
  • Maximilian Stritzinger,
  • Joseph P. Anderson,
  • Chris Ashall,
  • Peter Hoeflich,
  • Benjamin J. Shappee,
  • S. E. Persson,
  • Anthony L. Piro,
  • E Baron,
  • Carlos Contreras,
  • Lluís Galbany,
  • Sahana Kumar,
  • Melissa Shahbandeh,
  • Scott Davis,
  • Jorge Anais,
  • Luis Busta,
  • Abdo Campillay,
  • Sergio Castellón,
  • Carlos Corco,
  • Tiara Diamond,
  • Christa Gall,
  • Consuelo Gonzalez,
  • Simon Holmbo,
  • Miguel Roth,
  • Jacqueline Serón,
  • Francesco Taddia,
  • Simón Torres,
  • Charles Baltay,
  • Gastón Folatelli,
  • Ellie Hadjiyska,
  • Mansi Kasliwal,
  • Peter E. Nugent,
  • David Rabinowitz,
  • Stuart D. Ryder

DOI
https://doi.org/10.3847/1538-4357/ad3e63
Journal volume & issue
Vol. 970, no. 1
p. 72

Abstract

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We present an analysis of Type Ia supernovae (SNe Ia) from the Carnegie Supernova Project I and II and extend the Hubble diagram from optical to near-infrared wavelengths ( uBgVriYJH ). We calculate the Hubble constant, H _0 , using various distance calibrators: Cepheids, the tip of the red giant branch (TRGB), and surface brightness fluctuations (SBFs). Combining all methods of calibration, we derive H _0 = 71.76 ± 0.58 (stat) ± 1.19 (sys) km s ^−1 Mpc ^−1 from the B band and H _0 = 73.22 ± 0.68 (stat) ± 1.28 (sys) km s ^−1 Mpc ^−1 from the H band. By assigning equal weight to the Cepheid, TRGB, and SBF calibrators, we derive the systematic errors required for consistency in the first rung of the distance ladder, resulting in a systematic error of 1.2 ∼ 1.3 km s ^−1 Mpc ^−1 in H _0 . As a result, relative to the statistics-only uncertainty, the tension between the late-time H _0 we derive by combining the various distance calibrators and the early-time H _0 from the cosmic microwave background is reduced. The highest precision in SN Ia luminosity is found in the Y band (0.12 ± 0.01 mag), as defined by the intrinsic scatter ( σ _int ). We revisit SN Ia Hubble residual-host mass correlations and recover previous results that these correlations do not change significantly between the optical and near-infrared wavelengths. Finally, SNe Ia that explode beyond 10 kpc from their host centers exhibit smaller dispersion in their luminosity, confirming our earlier findings. A reduced effect of dust in the outskirts of hosts may be responsible for this effect.

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