Daniela Calzetti

Space Telescope Science Institute

The Panchromatic View of Star Formation

The synergy between NASA's Great Observatories has recently opened new
possibilities for the investigation of star formation and the impact
of stellar feedback on galaxies. Star formation and feedback are two
key, but still incompletely characterized, components of galaxy
evolution.  I will present recent and on-going research that uses both
the Spitzer and Hubble Space Telescopes data to obtain a census of the
obscured and unobscured star formation in the local Universe,
calibrate new star formation rate indicators, and investigate the
empirical laws of star formation at the sub-galactic-scale level and
in the outskirts of galaxies. HST data are also providing new key
information on another aspect of star formation: its mechanical
feedback into the host galaxy's interstellar medium and into the
intergalactic medium. Implications for studies of galaxies at
cosmological distances will also be discussed.