Great Observatories All-Sky LIRG Survey

Goals

GOALS Research Project Operational

Overview:

The Great Observatories All-sky LIRG Survey (GOALS), is combining imaging and spectroscopic data from NASA's Spitzer, Hubble, Chandra and GALEX space-borne observatories in a comprehensive study of the most luminous infrared-selected galaxies in the local Universe. The sample consists of 202 Luminous Infrared Galaxies (LIRGs), which are systems with total infrared emission brighter than 1011 L and less than 1012 L, as well as 22 Ultra-Luminous Infrared Galaxies (ULIRGs) with luminosity of 1012 L or greater.

The objects are a complete subset of the IRAS Revised Bright Galaxy Sample (RBGS), which comprises 629 extragalactic objects with 60-micron flux densities above 5.24 Jy and Galactic latitude above five degrees. The RBGS objects, all with redshifts, z < 0.088, are the brightest 60-micron sources in the extragalactic sky.

The LIRGs and ULIRGs targeted in GOALS span the full range of nuclear spectral types (type-1 and type-2 AGN, LINERs, and starbursts) and interaction stages (major mergers, minor mergers, and isolated galaxies). They provide an unbiased picture of the processes responsible for enhanced infrared emission in the local Universe, and are excellent analogs for comparisons with infrared and sub-millimeter selected galaxies at high-redshift.

GOALS was selected as a Spitzer cycle 3 Legacy Science program.

There are three major Herschel GO1 programs being led by members of the GOALS team focusing on PACS spectroscopy of the major FIR fine-structure lines (PI = Lee Armus), SPIRE spectroscopy  of the higher-order CO transitions (PI = Nanyao Lu) and PACS and SPIRE photometry (PI = Dave Sanders).

IPAC's role:

The GOALS principal investigator is Lee Armus. The GOALS team includes many past and present IPAC scientists, including Philip Appleton, Carrie Bridge, Ben Chan, David Frayer, Sebastian Haan, Justin Howell, Hanae Inami, Steven Lord, Nanyao Lu, Joseph Mazzarella, Eric Murphy, Andreea Petric, Bernhard Schulz, Sabrina Stierwalt, Jason Surace and Kevin Xu.

GOALS data is hosted by IRSA at IPAC, including the raw observations from Spitzer in the Spitzer Heritage Archive, and enhanced data products and tools.

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