Growth and Destruction of Disks: Combined H I and H II View

Type Conference Paper
Names Matthew Bershady, Marc Verheijen, Steven Crawford
Proceedings Title AIP Conference Proceedings
Conference Name The Evolution of Galaxies Through the Neutral Hydrogen Window
Place Melville, NY
Publisher American Institute of Physics
Volume 1035
Pages 169-174
Series AIP Conference Proceedings
Date August 1, 2008
Short Title Growth and Destruction of Disks
Library Catalog NASA ADS
Abstract How large disk galaxies have evolved in, and out of, the blue cloud of actively star-forming galaxies as a function of environment and time is an outstanding question. Some of the largest disks become systems like M31, M33 and the Milky Way today. In denser environments, it appears they transform onto the red sequence. Tracking disk systems since z<0.5 as a function H I mass, dynamical mass, and environment should be possible in the coming decade. H I and optical data combined can sample outer and inner disk dynamics to connect halo properties with regions of most intense star-formation, and the gas reservoir to the consumption rate. We describe existing and future IFUs on 4-10m telescopes that complement upcoming H I surveys for studying disks at z<0.5. Multiple units, deployable over large fields-of-view, and with logarithmic sampling will yield kinematic and star-formation maps and properties of the stellar populations, resolving the core but retaining sensitivity to disk outskirts.
Tags H2 clouds, Infall, Interstellar medium and nebulae in Milky Way, Molecular clouds, Spectroscopy and spectrophotometry, Star formation, accretion, and accretion disks, and dark clouds, dense clouds
UW-Madison Astronomy Home