UV observations of star clusters uniquely probe hot evolved stars, mass-transfer products, multiple populations, and low-metallicity massive-star evolution across the Local Group and beyond.
Stellar Clusters in M31 from PHAT: Survey Overview and First Results
1 Pith paper cite this work, alongside 17 external citations. Polarity classification is still indexing.
1
Pith paper citing it
17
external citations · Pith
abstract
The Panchromatic Hubble Andromeda Treasury (PHAT) is an on-going Hubble Space Telescope (HST) multi-cycle program that will image one-third of the M31 disk at high resolution, with wavelength coverage from the ultraviolet through the near-infrared. This dataset will allow for the construction of the most complete catalog of stellar clusters obtained for a spiral galaxy. Here, we provide an overview of the PHAT survey, a progress report on the status of observations and analysis, and preliminary results from the PHAT cluster program. Although only ~20% of the survey is complete, the superior resolution of HST has allowed us to identify hundreds of new intermediate and low mass clusters. As a result, the size of the cluster sample within the Year 1 survey footprint has grown by a factor of three relative to previous catalogs.
fields
astro-ph.GA 1years
2026 1verdicts
ACCEPT 1representative citing papers
citing papers explorer
-
Star Clusters in the Ultraviolet
UV observations of star clusters uniquely probe hot evolved stars, mass-transfer products, multiple populations, and low-metallicity massive-star evolution across the Local Group and beyond.