23 citations · 91 across the 14 of their papers we have counts for
8 papers · 1 filter
The Chicago Carnegie Hubble Program: Improving the Calibration of SNe Ia with JWST Measurements of the Tip of the Red Giant Branch
Taylor J. Hoyt, In Sung Jang, Wendy L. Freedman +3
We present distances to ten supernova (SN) host galaxies determined via the red giant branch tip (TRGB) using JWST/NIRCAM and the F115W, F356W, and F444W bandpasses. Our analysis,…
The Chicago-Carnegie Hubble Program: The JWST J-region Asymptotic Giant Branch (JAGB) Extragalactic Distance Scale
Abigail J. Lee, Wendy L. Freedman, Barry F. Madore +3
The J-region asymptotic giant branch (JAGB) method is a new standard candle based on the constant luminosities of carbon-rich asymptotic giant branch stars in the J band. The JAGB…
Coordinated JWST Imaging of Three Distance Indicators in a SN Host Galaxy and an Estimate of the TRGB Color Dependence
Taylor J. Hoyt, In Sung Jang, Wendy L. Freedman +3
Boasting a 6.5m mirror in space, JWST can increase by several times the number of supernovae (SNe) to which a redshift-independent distance has been measured with a precision dista…
Uncovering the Ghostly Remains of an Extremely Diffuse Satellite in the Remote Halo of NGC 253
Sakurako Okamoto, Annette M. N. Ferguson, Nobuo Arimoto +12
We present the discovery of NGC253-SNFC-dw1, a new satellite galaxy in the remote stellar halo of the Sculptor Group spiral, NGC 253. The system was revealed using deep resolved st…
First JWST Observations of JAGB Stars in the SN Ia Host Galaxies: NGC 7250, NGC 4536, NGC 3972
Abigail J. Lee, Wendy L. Freedman, In Sung Jang +2
The J-region Asymptotic Giant Branch (JAGB) method is a standard candle that leverages the constant luminosities of color-selected, carbon-rich AGB stars, measured in the near infr…
Tests of photometry: the case of the NGC 3370 ACS field
In Sung Jang
A critical analysis and comparison of different methods for obtaining point spread function (PSF) photometry are carried out. Deep ACS observations of NGC3370 were reduced using fo…
The Astrophysical Distance Scale: V. A 2% Distance to the Local Group Spiral M33 via the JAGB Method, Tip of the Red Giant Branch, and Leavitt Law
Abigail J. Lee, Laurie Rousseau-Nepton, Wendy L. Freedman +6
The J-region asymptotic giant branch (JAGB) method is a new standard candle that is based on the stable intrinsic J-band magnitude of color-selected carbon stars, and has a precisi…
A Preliminary Calibration of the JAGB Method Using Gaia EDR3
Abigail J. Lee, Wendy L. Freedman, Barry F. Madore +2
The recently-developed J-region Asymptotic Giant Branch (JAGB) method has extraordinary potential as an extragalactic standard candle, capable of calibrating the absolute magnitude…