the archive
#stellar populations
2 resultsastro-ph.GA2019
Five Gas-rich Ultra-faint Dwarf Galaxy Candidates Discovered in WIYN Imaging of ALFALFA Sources
William Janesh, Katherine L. Rhode, John J. Salzer +5
The paper reports the discovery of five gas‑rich ultra‑faint dwarf galaxy candidates associated with ultra‑compact high‑velocity clouds identified in the ALFALFA HI survey, using d…
#ultra-faint dwarf galaxies#neutral hydrogen#local group#galaxy formation
astro-ph.GA2019
Is There a Fundamental Upper Limit to the Mass of a Star Cluster?
Mark A. Norris, Glenn van de Ven, Sheila J. Kannappan +2
The authors compile a comprehensive catalog of compact stellar systems and show that ancient star clusters appear to have an upper mass limit of about 5×10⁷ M☉ (≈10⁸ M☉ at birth),…
#star clusters#ultra compact dwarfs#mass limit#stellar populations