activity
20062026
most citedThe Carnegie-Chicago Hubble Program. VIII. An Independent Determination of the Hubble Constant Based on the Tip of the Red Giant Branch

825 citations · 9.2k across the 134 of their papers we have counts for

collaborators

135 papers

astro-ph.GA2026

An improved view of cosmic-ray transport and the galactic outflow in NGC 253

Shengtao Wang, George Heald, Stefan W. Duchesne +11

The nearly edge-on starburst galaxy NGC 253 exhibits extended multiwavelength halo emission, making it an ideal laboratory for studying disk-halo transport. We present improved ASK…

astro-ph.GA2025

Tracing Red Giant Members of the Globular Cluster Palomar 5 with APOGEE and Gaia

Allyson A. Sheffield, Sarah Pearson, Lenin F. Nolasco +5

The globular cluster Palomar 5 (Pal 5) is in the process of being tidally shredded as it orbits the Milky Way. Its core is currently at a heliocentric distance of ~21 kpc, near apo…

astro-ph.GA2025

Exploring the potential for kinematically colder HI component as a tracer for star-forming gas in nearby galaxies

Hye-Jin Park, Andrew J. Battisti, Antoine Marchal +10

Atomic hydrogen (HI) dominates the mass of the cold interstellar medium, undergoing thermal condensation to form molecular gas and fuel star formation. Kinematically colder HI comp…

astro-ph.GA2024

Quantifying azimuthal variations within the interstellar medium of z ~ 0 spiral galaxies with the TYPHOON survey

Qian-Hui Chen, Kathryn Grasha, Andrew J. Battisti +13

Most star formation in the local Universe occurs in spiral galaxies, but their origin remains an unanswered question. Various theories have been proposed to explain the development…

astro-ph.GA2024★ 21 cited

The APO-K2 Catalog. II. Accurate Stellar Ages for Red Giant Branch Stars across the Milky Way

Jack T. Warfield, Joel C. Zinn, Jessica Schonhut-Stasik +11

We present stellar age determinations for 4661 red giant branch stars in the APO-K2 catalog, derived using mass estimates from K2 asteroseismology from the K2 Galactic Archaeology…

astro-ph.SR2024

Spectacular nucleosynthesis from early massive stars

Alexander P. Ji, Sanjana Curtis, Nicholas Storm +39

Stars formed with initial mass over 50 Msun are very rare today, but they are thought to be more common in the early universe. The fates of those early, metal-poor, massive stars a…