GALAXIES NEED A CONTINUOUS SUPPLY OF COLD GAS TO FUEL STAR FORMATION. IN OUR CURRENT THEORY OF GALAXY FORMATION AND EVOLUTION GALAXIES ACCRETE GAS FROM THE WARM CIRCUMGALACTIC MEDIUM (CGM) WHICH THEN SETTLES INTO THE HI DISK MIGRATES RADIALLY INWARDS AND FORMS STARS. THE YOUNG STARS IN TURN GO
$504,576FY2021National Aeronautics and Space AdministrationNASA
Arizona State University, Scottsdale AZ