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Carbon Stars as Standard Candles: An Empirical Test for the Reddening, Metallicity, and Age Sensitivity of the J-region Asymptotic Giant Branch (JAGB) Method

Lee, Abigail Junghee
2025
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Abstract

The J-region Asymptotic Giant Branch (JAGB) method is a standard candle based on the intrinsic luminosities of carbon stars in the near infrared. We directly constrain the impact of metallicity, age, and reddening on the JAGB method. We assess how the mode, skew, and spread of the JAGB star luminosity function change throughout diverse stellar environments in M31's NE disk from 13

Details

Title
Carbon Stars as Standard Candles: An Empirical Test for the Reddening, Metallicity, and Age Sensitivity of the J-region Asymptotic Giant Branch (JAGB) Method
Author
Lee, Abigail Junghee : University of Chicago : (https://orcid.org/0000-0002-5865-0220)
Degree Type
Ph.D.
Content Type
Dissertation
Academic Advisor
Committee Member
Keywords
Digital Object Identifier
https://doi.org/10.6082/uchicago.15515
Funding Information
National Aeronautics and Space Administration, Future Investigators in NASA Earth and Space Science and Technology, 80NSSC22K1602
Illinois/National Aeronautics and Space Administration Space Grant Consortium, NASA Illinois Space Grant Consortium Graduate Fellowship
National Aeronautics and Space Administration, HST-AR-16126
National Aeronautics and Space Administration, HST-AR-16127
National Aeronautics and Space Administration, HST-AR-17052
National Aeronautics and Space Administration, HST-AR-17544
National Aeronautics and Space Administration, JWST-GO-1995
Publication Date
2025-08
Language
English
Copyright Statement
© 2025 Abigail Junghee Lee
Licensing
Record Appears in
Physical Sciences Division > Astronomy and Astrophysics
All
Record Created
2025-06-16

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