Astrophysical Distance Scale. VII. A Self-consistent, Multiwavelength Calibration of the Slopes and Relative Zero Points for the Run of Luminosity with the Color of Stars Defining the Tip of the Red Giant Branch
Given the recent successful launch of the James Webb Space Telescope, determining robust calibrations of the slopes and absolute magnitudes of the near- to mid-infrared tip of the red-giant branch (TRGB) will be essential to measuring precise extragalactic distances via this method. Using ground-bas...
| 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 Astronomical Journal |
| Subjects: | |
| Online Access: | https://doi.org/10.3847/1538-3881/ad022c |
| _version_ | 1797635879621099520 |
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| author | Barry F. Madore Wendy L. Freedman Kayla Owens |
| author_facet | Barry F. Madore Wendy L. Freedman Kayla Owens |
| author_sort | Barry F. Madore |
| collection | DOAJ |
| description | Given the recent successful launch of the James Webb Space Telescope, determining robust calibrations of the slopes and absolute magnitudes of the near- to mid-infrared tip of the red-giant branch (TRGB) will be essential to measuring precise extragalactic distances via this method. Using ground-based data of the Large Magellanic Cloud from the Magellanic Clouds Photometric Survey along with near-infrared (NIR) data from 2MASS and mid-infrared (MIR) data collected as a part of the SAGE survey using the Spitzer Space Telescope, we present slopes and zero-points for the TRGB in the optical (VI), NIR (JHK), and MIR ([3.6] and [4.5]) bandpasses. These calibrations utilize stars +0.3 ± 0.1 mag below the tip, providing a substantial statistical improvement over previous calibrations which only used the sample of stars narrowly encompassing the tip. |
| first_indexed | 2024-03-11T12:26:24Z |
| format | Article |
| id | doaj.art-1d9b896ae5bb4eb9ae22585cde4ba1f2 |
| institution | Directory Open Access Journal |
| issn | 1538-3881 |
| language | English |
| last_indexed | 2024-03-11T12:26:24Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astronomical Journal |
| spelling | doaj.art-1d9b896ae5bb4eb9ae22585cde4ba1f22023-11-06T08:34:45ZengIOP PublishingThe Astronomical Journal1538-38812023-01-01166622410.3847/1538-3881/ad022cAstrophysical Distance Scale. VII. A Self-consistent, Multiwavelength Calibration of the Slopes and Relative Zero Points for the Run of Luminosity with the Color of Stars Defining the Tip of the Red Giant BranchBarry F. Madore0https://orcid.org/0000-0002-1576-1676Wendy L. Freedman1https://orcid.org/0000-0003-3431-9135Kayla Owens2https://orcid.org/0000-0003-3339-8820The Observatories, Carnegie Institution for Science , 813 Santa Barbara St., Pasadena, CA 91101, USA ; barry.f.madore@gmail.com; Department of Astronomy & Astrophysics, University of Chicago , 5640 S. Ellis Ave., Chicago, IL 60637, USA ; wfreedman@uchicago.edu, kaowens@uchicago.eduDepartment of Astronomy & Astrophysics, University of Chicago , 5640 S. Ellis Ave., Chicago, IL 60637, USA ; wfreedman@uchicago.edu, kaowens@uchicago.edu; Kavli Institute for Cosmological Physics, University of Chicago , 5640 S. Ellis Ave., Chicago, IL 60637, USADepartment of Astronomy & Astrophysics, University of Chicago , 5640 S. Ellis Ave., Chicago, IL 60637, USA ; wfreedman@uchicago.edu, kaowens@uchicago.edu; Kavli Institute for Cosmological Physics, University of Chicago , 5640 S. Ellis Ave., Chicago, IL 60637, USAGiven the recent successful launch of the James Webb Space Telescope, determining robust calibrations of the slopes and absolute magnitudes of the near- to mid-infrared tip of the red-giant branch (TRGB) will be essential to measuring precise extragalactic distances via this method. Using ground-based data of the Large Magellanic Cloud from the Magellanic Clouds Photometric Survey along with near-infrared (NIR) data from 2MASS and mid-infrared (MIR) data collected as a part of the SAGE survey using the Spitzer Space Telescope, we present slopes and zero-points for the TRGB in the optical (VI), NIR (JHK), and MIR ([3.6] and [4.5]) bandpasses. These calibrations utilize stars +0.3 ± 0.1 mag below the tip, providing a substantial statistical improvement over previous calibrations which only used the sample of stars narrowly encompassing the tip.https://doi.org/10.3847/1538-3881/ad022cRed giant branchDistance indicators |
| spellingShingle | Barry F. Madore Wendy L. Freedman Kayla Owens Astrophysical Distance Scale. VII. A Self-consistent, Multiwavelength Calibration of the Slopes and Relative Zero Points for the Run of Luminosity with the Color of Stars Defining the Tip of the Red Giant Branch The Astronomical Journal Red giant branch Distance indicators |
| title | Astrophysical Distance Scale. VII. A Self-consistent, Multiwavelength Calibration of the Slopes and Relative Zero Points for the Run of Luminosity with the Color of Stars Defining the Tip of the Red Giant Branch |
| title_full | Astrophysical Distance Scale. VII. A Self-consistent, Multiwavelength Calibration of the Slopes and Relative Zero Points for the Run of Luminosity with the Color of Stars Defining the Tip of the Red Giant Branch |
| title_fullStr | Astrophysical Distance Scale. VII. A Self-consistent, Multiwavelength Calibration of the Slopes and Relative Zero Points for the Run of Luminosity with the Color of Stars Defining the Tip of the Red Giant Branch |
| title_full_unstemmed | Astrophysical Distance Scale. VII. A Self-consistent, Multiwavelength Calibration of the Slopes and Relative Zero Points for the Run of Luminosity with the Color of Stars Defining the Tip of the Red Giant Branch |
| title_short | Astrophysical Distance Scale. VII. A Self-consistent, Multiwavelength Calibration of the Slopes and Relative Zero Points for the Run of Luminosity with the Color of Stars Defining the Tip of the Red Giant Branch |
| title_sort | astrophysical distance scale vii a self consistent multiwavelength calibration of the slopes and relative zero points for the run of luminosity with the color of stars defining the tip of the red giant branch |
| topic | Red giant branch Distance indicators |
| url | https://doi.org/10.3847/1538-3881/ad022c |
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