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astro-ph.GA2026
The Stellar Initial Mass Function down to 0.16M Towards the Small Magellanic Cloud
Roger E. Cohen, Mario Gennaro, Matteo Correnti +2
The presence (and nature) of variations in the stellar initial mass function (IMF) at substantially sub-solar masses and metallicities (0.5M, [M/H]1) r…
astro-ph.GA2026
The JWST Resolved Stellar Populations Early Release Science Program. IX. The RR Lyrae Population in WLM with HST and JWST
Catherine M. Slaughter, Evan D. Skillman, Alessandro Savino +16
RR Lyrae stars are a common, dependable Population II distance indicator, and provide an independent tracer of early star formation. Here, we utilize archival HST/ACS and JWST/NIRC…
astro-ph.GA2026★ 3 cited
On the Use of Field RR Lyrae as Galactic Probes -- VIII. Early Formation of the Galactic Spheroid
G. Bono, V. F. Braga, M. Fabrizio +54
We introduce a new photometric catalog of RR Lyrae variables (RRLs, 300,000) mainly based on data available in public datasets. We also present the largest and most homogeneo…