The Great Observatories All-Sky LIRG Survey: Herschel Image Atlas and Aperture Photometry

Creators: Chu, Jason K.; Sanders, D. B.; Larson, K. L.; Mazzarella, J. M.; Howell, J. H.; Díaz-Santos, T.; Xu, K. C.; Paladini, R.; Schulz, B.; Shupe, D.; Appleton, P.; Armus, L.; Billot, N.; Chan, B. H. P.; Evans, A. S.; Fadda, D.; Frayer, D. T.; Haan, S.; Ishida, C. M.; Iwasawa, K.; Kim, D.-C.; Lord, S.; Murphy, E.; Petric, A.; Privon, G. C.; Surace, J. A.; Treister, E.

Abstract

Far-infrared images and photometry are presented for 201 Luminous and Ultraluminous Infrared Galaxies [LIRGs: log (L_(IR)/L⊙) = 11.00-11.99, ULIRGs: log (L_(IR)/L⊙) = 12.00-12.99], in the Great Observatories All-Sky LIRG Survey (GOALS), based on observations with the Herschel Space Observatory Photodetector Array Camera and Spectrometer (PACS) and the Spectral and Photometric Imaging Receiver (SPIRE) instruments. The image atlas displays each GOALS target in the three PACS bands (70, 100, and 160 μm) and the three SPIRE bands (250, 350, and 500 μm), optimized to reveal structures at both high and low surface brightness levels, with images scaled to simplify comparison of structures in the same physical areas of ~100 × 100 kpc^2. Flux densities of companion galaxies in merging systems are provided where possible, depending on their angular separation and the spatial resolution in each passband, along with integrated system fluxes (sum of components). This data set constitutes the imaging and photometric component of the GOALS Herschel OT1 observing program, and is complementary to atlases presented for the Hubble Space Telescope, Spitzer Space Telescope, and Chandra X-ray Observatory. Collectively, these data will enable a wide range of detailed studies of active galactic nucleus and starburst activity within the most luminous infrared galaxies in the local universe.

Additional Information

© 2017 The American Astronomical Society. Received 2016 December 15; revised 2017 January 18; accepted 2017 January 27; published 2017 March 29. Based on Herschel Space Observatory observations. Herschel is an ESA space observatory with science instruments provided by the European-led Principal Investigator consortia, and important participation from NASA. J. Chu gratefully acknowledges Laurie Chu for proofreading the manuscript, and Thomas Shimizu for discussions on reducing the Herschel data. D.S. gratefully acknowledges the hospitality of the Aspen Center for Physics, which is supported by the National Science Foundation Grant No. PHY-1066293. D.S. and K.L. also acknowledge the Distinguished Visitor Program at the Research School for Astronomy and Astrophysics, Australian National University for their generous support while the authors were in residence at the Mount Stromlo Observatory, Weston Creek, N.S.W.J.C., K.L., and D.S. gratefully acknowledge funding support from NASA grant NNX11AB02G. G.C.P. was supported by a FONDECYT Postdoctoral Fellowship (No. 3150361). Support for this research was provided by NASA through a GO Cycle 1 award issued by JPL/Caltech. We thank the Observer Support group of the NASA Herschel Science Center for patiently handling revisions and refinements of our AORs before execution of the observations, and for their expert assistance in reducing the data. This paper has used data from the Planck mission, which is a project of the European Space Agency in cooperation with the scientific community. ESA led the project, developed the satellite, integrated the payload into it, and launched and operated the satellite. This research has made extensive use of the NASA/IPAC Extragalactic Database (NED) which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. We also thank the anonymous referee, whose comments helped us further improve our manuscript. Facilities: Herschel (PACS), Herschel (SPIRE), Planck (HFI).

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