Skip to main content
Journal cover image

Standardized Luminosity of the Tip of the Red Giant Branch Utilizing Multiple Fields in NGC 4258 and the CATs Algorithm

Publication ,  Journal Article
Li, S; Riess, AG; Scolnic, D; Anand, GS; Wu, J; Casertano, S; Yuan, W; Beaton, R; Anderson, RI
Published in: Astrophysical Journal
October 1, 2023

The tip of the red giant branch provides a luminous standard candle for calibrating distance ladders that reach Type Ia supernova (SN Ia) hosts. However, recent work reveals that tip measurements vary at the ∼0.1 mag level for different stellar populations and locations within a host, which may lead to inconsistencies along the distance ladder. We pursue a calibration of the tip using 11 Hubble Space Telescope fields around the maser host, NGC 4258, that is consistent with SN Ia hosts by standardizing tip measurements via their contrast ratios. We find F814W-band tips that exhibit a full 0.3 mag range and 0.1 mag dispersion. We do not find any correlation between H i column density and the apparent tip to 0.04 ± 0.03 mag/cm−2. We search for a tip-contrast relation (TCR) and measure the TCR within the fields of NGC 4258 of −0.015 ± 0.008 mag/R, where R is the contrast ratio. This value is consistent with the TCR originally discovered in the GHOSTS sample of −0.023 ± 0.005 mag/R. Combining these measurements, we find a global TCR of −0.021 ± 0.004 mag/R and a calibration of M I TRGB = − 4.025 ± 0.035 − ( R − 4 ) × 0.021 mag. We also use stellar models to simulate single age and metallicity stellar populations with [Fe/H] from −2.0 to −0.7 and ages from 3 to 12 Gyr and reconstruct the global TCR found here to a factor of ∼2. This work is combined in a companion analysis with tip measurements of nearby SN Ia hosts to measure H 0

Duke Scholars

Altmetric Attention Stats
Dimensions Citation Stats

Published In

Astrophysical Journal

DOI

EISSN

1538-4357

ISSN

0004-637X

Publication Date

October 1, 2023

Volume

956

Issue

1

Related Subject Headings

  • Astronomy & Astrophysics
  • 5109 Space sciences
  • 5107 Particle and high energy physics
  • 5101 Astronomical sciences
  • 0306 Physical Chemistry (incl. Structural)
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Li, S., Riess, A. G., Scolnic, D., Anand, G. S., Wu, J., Casertano, S., … Anderson, R. I. (2023). Standardized Luminosity of the Tip of the Red Giant Branch Utilizing Multiple Fields in NGC 4258 and the CATs Algorithm. Astrophysical Journal, 956(1). https://doi.org/10.3847/1538-4357/acf4fb
Li, S., A. G. Riess, D. Scolnic, G. S. Anand, J. Wu, S. Casertano, W. Yuan, R. Beaton, and R. I. Anderson. “Standardized Luminosity of the Tip of the Red Giant Branch Utilizing Multiple Fields in NGC 4258 and the CATs Algorithm.” Astrophysical Journal 956, no. 1 (October 1, 2023). https://doi.org/10.3847/1538-4357/acf4fb.
Li S, Riess AG, Scolnic D, Anand GS, Wu J, Casertano S, et al. Standardized Luminosity of the Tip of the Red Giant Branch Utilizing Multiple Fields in NGC 4258 and the CATs Algorithm. Astrophysical Journal. 2023 Oct 1;956(1).
Li, S., et al. “Standardized Luminosity of the Tip of the Red Giant Branch Utilizing Multiple Fields in NGC 4258 and the CATs Algorithm.” Astrophysical Journal, vol. 956, no. 1, Oct. 2023. Scopus, doi:10.3847/1538-4357/acf4fb.
Li S, Riess AG, Scolnic D, Anand GS, Wu J, Casertano S, Yuan W, Beaton R, Anderson RI. Standardized Luminosity of the Tip of the Red Giant Branch Utilizing Multiple Fields in NGC 4258 and the CATs Algorithm. Astrophysical Journal. 2023 Oct 1;956(1).
Journal cover image

Published In

Astrophysical Journal

DOI

EISSN

1538-4357

ISSN

0004-637X

Publication Date

October 1, 2023

Volume

956

Issue

1

Related Subject Headings

  • Astronomy & Astrophysics
  • 5109 Space sciences
  • 5107 Particle and high energy physics
  • 5101 Astronomical sciences
  • 0306 Physical Chemistry (incl. Structural)
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences