8 papers
A near field guide to Roman's wide-area surveys
Robyn E. Sanderson, Kevin A. McKinnon, Adrien C. R. Thob +7
The Nancy Grace Roman Space Telescope currently plans to survey nearly 6000 square degrees of the sky, mainly in the High-Latitude Wide-Area Survey (HLWAS) and Galactic Plane Surve…
The Star Formation History of WLM from Asymptotic Giant Branch Stars and The Discovery of a Candidate Accreted System in its Outer Disk
Abigail J. Lee, Daniel R. Weisz, Andrew E. Dolphin +1
We measure the star formation history (SFH) of Local Group dwarf galaxy WLM using wide-area ( half-light radii) ground-based near-infrared (NIR) imaging of bright ($M_{J}<-4…
I-Band Asymptotic Giant Branch (IAGB) Stars: II. A First Estimate of their Precision and a Differential Zero Point
Wendy L. Freedman, Barry F. Madore, Taylor Hoyt +3
Hubble Space Telescope (HST) observations of 92 galaxies that have a strong showing of I-band Asymptotic Giant Branch (IAGB) stars in their color-magnitude diagrams (CMDs), are use…
I-Band Asymptotic Giant Branch (IAGB) Stars: I. Exploring a New Standard Candle for the Extragalactic Distance Scale
Barry F. Madore, Wendy L. Freedman, Taylor Hoyt +3
In the I-band color-magnitude diagrams (CMD) of resolved nearby galaxies, the reddest asymptotic giant branch (AGB) stars form a previously unremarked-upon, but nevertheless distin…
Measuring Star Formation Histories from Asymptotic Giant Branch Stars I: A Demonstration in M31
Abigail J. Lee, Daniel R. Weisz, Yi Ren +2
We demonstrate how near-infrared (NIR) imaging of resolved luminous asymptotic giant branch (AGB) stars can be used to measure well-constrained star formation histories (SFHs) acro…
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…