Standardized Luminosity of the Tip of the Red Giant Branch Utilizing Multiple Fields in NGC 4258 and the CATs Algorithm
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...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/acf4fb |
| _version_ | 1797665885186424832 |
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| author | Siyang Li Adam G. Riess Daniel Scolnic Gagandeep S. Anand Jiaxi Wu Stefano Casertano Wenlong Yuan Rachael Beaton Richard I. Anderson |
| author_facet | Siyang Li Adam G. Riess Daniel Scolnic Gagandeep S. Anand Jiaxi Wu Stefano Casertano Wenlong Yuan Rachael Beaton Richard I. Anderson |
| author_sort | Siyang Li |
| collection | DOAJ |
| description | 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 ${M}_{I}^{\mathrm{TRGB}}=-4.025\pm 0.035-(R-4)\times 0.021$ 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 . |
| first_indexed | 2024-03-11T19:50:34Z |
| format | Article |
| id | doaj.art-90bc58af177a49299e00307e82ca2b05 |
| institution | Directory Open Access Journal |
| issn | 1538-4357 |
| language | English |
| last_indexed | 2024-03-11T19:50:34Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj.art-90bc58af177a49299e00307e82ca2b052023-10-05T09:58:40ZengIOP PublishingThe Astrophysical Journal1538-43572023-01-0195613210.3847/1538-4357/acf4fbStandardized Luminosity of the Tip of the Red Giant Branch Utilizing Multiple Fields in NGC 4258 and the CATs AlgorithmSiyang Li0https://orcid.org/0000-0002-8623-1082Adam G. Riess1https://orcid.org/0000-0002-6124-1196Daniel Scolnic2https://orcid.org/0000-0002-4934-5849Gagandeep S. Anand3https://orcid.org/0000-0002-5259-2314Jiaxi Wu4https://orcid.org/0000-0003-3829-967XStefano Casertano5Wenlong Yuan6https://orcid.org/0000-0001-9420-6525Rachael Beaton7https://orcid.org/0000-0002-1691-8217Richard I. Anderson8https://orcid.org/0000-0001-8089-4419Department of Physics and Astronomy, Johns Hopkins University , Baltimore, MD 21218, USA ; sli185@jh.eduDepartment of Physics and Astronomy, Johns Hopkins University , Baltimore, MD 21218, USA ; sli185@jh.edu; Space Telescope Science Institute , Baltimore, MD 21218, USADepartment of Physics, Duke University , Durham, NC 27708, USASpace Telescope Science Institute , Baltimore, MD 21218, USADepartment of Physics, Duke University , Durham, NC 27708, USA; Kuang Yaming Honors School, Nanjing University , Nanjing, Jiangsu 210023, People’s Republic of ChinaSpace Telescope Science Institute , Baltimore, MD 21218, USADepartment of Physics and Astronomy, Johns Hopkins University , Baltimore, MD 21218, USA ; sli185@jh.eduSpace Telescope Science Institute , Baltimore, MD 21218, USAInstitute of Physics , École Polytechnique Fédérale de Lausanne (EPFL), Observatoire de Sauverny, 1290 Versoix, SwitzerlandThe 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 ${M}_{I}^{\mathrm{TRGB}}=-4.025\pm 0.035-(R-4)\times 0.021$ 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 .https://doi.org/10.3847/1538-4357/acf4fbRed giant starsStandard candlesStellar distanceHubble constantObservational cosmologyCalibration |
| spellingShingle | Siyang Li Adam G. Riess Daniel Scolnic Gagandeep S. Anand Jiaxi Wu Stefano Casertano Wenlong Yuan Rachael Beaton Richard I. Anderson Standardized Luminosity of the Tip of the Red Giant Branch Utilizing Multiple Fields in NGC 4258 and the CATs Algorithm The Astrophysical Journal Red giant stars Standard candles Stellar distance Hubble constant Observational cosmology Calibration |
| title | Standardized Luminosity of the Tip of the Red Giant Branch Utilizing Multiple Fields in NGC 4258 and the CATs Algorithm |
| title_full | Standardized Luminosity of the Tip of the Red Giant Branch Utilizing Multiple Fields in NGC 4258 and the CATs Algorithm |
| title_fullStr | Standardized Luminosity of the Tip of the Red Giant Branch Utilizing Multiple Fields in NGC 4258 and the CATs Algorithm |
| title_full_unstemmed | Standardized Luminosity of the Tip of the Red Giant Branch Utilizing Multiple Fields in NGC 4258 and the CATs Algorithm |
| title_short | Standardized Luminosity of the Tip of the Red Giant Branch Utilizing Multiple Fields in NGC 4258 and the CATs Algorithm |
| title_sort | standardized luminosity of the tip of the red giant branch utilizing multiple fields in ngc 4258 and the cats algorithm |
| topic | Red giant stars Standard candles Stellar distance Hubble constant Observational cosmology Calibration |
| url | https://doi.org/10.3847/1538-4357/acf4fb |
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