A Preliminary Calibration of the JAGB Method Using Gaia EDR3

  title={A Preliminary Calibration of the JAGB Method Using Gaia EDR3},
  author={Abigail J. Lee and Wendy L. Freedman and Barry F. Madore and Kayla A. Owens and In Sung Jang},
  journal={The Astrophysical Journal},
The recently developed J-region asymptotic giant branch (JAGB) method has extraordinary potential as an extragalactic standard candle, capable of calibrating the absolute magnitudes of locally accessible Type Ia supernovae, thereby leading to an independent determination of the Hubble constant. Using Gaia Early Data Release 3 (EDR3) parallaxes, we calibrate the zero-point of the JAGB method, based on the mean luminosity of a color-selected subset of carbon-rich AGB stars. We identify Galactic… 


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