International scientific projects and working groups.
The VERTICO Survey is an ongoing ALMA Large Program that is revealing the effects of environment on galaxy evolution in unprecedented detail by mapping the molecular gas, as the raw fuel for star formation, in 51 Virgo Cluster galaxies.
The PHANGS (Physics at High Angular resolution in Nearby GalaxieS) survey is making high resolution observations of nearby galaxies with several telescopes, including ALMA, Hubble, JWST and the VLT. Its goal is to better understand the interplay of the small-scale physics of gas and star formation with galactic structure and galaxy evolution.
The goal of DEGAS — Dense Extragalactic GBT+Argus Survey — is to map the dense molecular gas in central 2arcmin of 36 nearby galaxies at moderate (10arcsec) resolution. When complete, it will be the largest survey of dense molecular gas to date.
The "EMIR Multiline Probe of the ISM Regulating Galaxy Evolution" (EMPIRE) survey is a ~600h IRAM 30m, wide-area, multi-line mapping survey targeting high critical density molecular lines and CO isotopologues in the 3mm window across the disks of 9 nearby, star-forming, disk galaxies (resolution 30" at 90GHz or 1-2kpc). The survey covers the key lines 13CO(1-0), C18O(1-0), HCN (1-0), HCO+(1-0) and HNC(1-0) and is complemented by new, sensitive 12CO(1-0) data also made available here (PIs: M. Jiménez-Donaire & D. Cormier). The core goals of EMPIRE are to constrain dense gas fraction and star formation efficiency across galaxy disks and explore how they depend on local conditions such as hydrostatic pressure, radiation field and stellar potential.