Phang

PHANGS-HST

Physics at High Angular resolution in Nearby GalaxieS with the Hubble Space Telescope

Overview: The PHANGS-HST survey (PI: Janice Lee) is building the first astronomical dataset charting the connections between young stars and gas, on the fundamental scales of star clusters and molecular clouds, throughout a diversity of galactic environments found in the local Universe.

The PHANGS-HST survey (PI: Janice Lee) is building the first astronomical dataset charting the connections between young stars and gas, on the fundamental scales of star clusters and molecular clouds, throughout a diversity of galactic environments found in the local Universe. Though a Hubble Space Telescope (HST) 122 orbit Cycle 26  Treasury Program, we are obtaining NUV-U-B-V-I Wide-Field Camera 3 (WFC3) imaging for 38 galaxies, all with Atacama Large Millimeter/submillimeter Array (ALMA) ~1 arcsec CO (2-1) maps from the PHANGS parent survey.  PHANGS is the principal ALMA Large Program for nearby galaxies, and with ALMA and HST working in concert, PHANGS-HST will yield an unprecedented catalog of the observed and physical properties of ~100,000 star clusters, associations, and clouds.  Our work will provide new constraints on star formation timescales, efficiencies, and the evolution of multi-scale structure as a function of galaxy-scale properties such as ISM phase balance, gas mass, star formation rate, surface densities, and galaxy morphology.  The joint HST-ALMA data products to be produced will be essential for maximizing the scientific return in a key area of study for JWST - dust embedded star formation - and will seed community science in star formation and beyond.