The IRAM Large Program HERACLES: The HERA CO-line Extragalactic Survey

Details The IRAM Large Program HERACLES: The HERA CO-line Extragalactic Survey The IRAM Large Program HERACLES: The HERA CO-line Extragalactic Survey

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21934603l&link_type=abstract

American Astronomical Society, AAS Meeting #219, #346.03

Astronomy and Astrophysics

Astronomy

Scientific paper

We present the results and publicly available data products from the IRAM Large Program HERACLES (the HERA CO-Line Extragalactic Survey), which produced wide-field, sensitive maps of CO J=2-1 emission from 48 nearby galaxies. Combining HERACLES with VLA HI (mostly from THINGS), GALEX ultraviolet, and Spitzer infrared data (mostly from SINGS) we have investigated the link between gas, star formation, and local conditions. Here we highlight our results (1) estimating star formation rates in a way that takes advantage of this full suite of multiwavelength, (2) exploring the distribution of CO emission down to very low brightness using novel stacking techniques, and (3) comparing key local conditions (the dust-to-gas ratio, stellar mass surface density, and local dynamical time) to the efficiency with which stars form from molecular gas at 1-kpc resolution across our diverse sample. We also present the publicly released HERACLES data products.

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