S315p.238 — Constraining the Infrared Luminosity and Star Formation Rate Function in the Local Universe: a benchmark for high-z galaxy evolution studies exploiting Spitzer and Herschel large-area surveys

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Aug 4th at 6:00 PM until 6:00 PM

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Author(s): Lucia Marchetti1, Mattia Vaccari3, Alberto Franceschini2

Institution(s): 1. The Open University, 2. University of Padova, 3. University of the Western Cape

Infrared wavelengths contain fundamental information about the origin of galaxies and black holes and about the evolutionary history of star formation, metal production and gravitational accretion, and the luminosity function has effectively been used to quantify the statistical nature of the evolution of galaxies and black holes through their luminosity distribution as a function of redshift and environment. While the determination of high-redshift luminosity functions requires deep observations, local luminosity functions can be estimated from shallower and wider-area sky maps and are fundamental benchmarks for high-redshift galaxy formation and evolution studies as well as for models describing these processes. To this aim, large-area infrared surveys have been jointly carried out over the last few years with the Spitzer and Herschel satellites as e.g. part of the SWIRE and HerMES projects, and in our work we exploited these datasets as well as supporting multi-wavelength photometry and spectroscopy to provide the most accurate determination to date of the local (0