Galaxy And Mass Assembly (GAMA) : Panchromatic Data Release (far-UV-far-IR) and the low-z energy budget
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We present the Galaxy And Mass Assembly (GAMA) Panchromatic Data Release (PDR) constituting over 230 deg2 of imaging with photometryin 21 bands extending from the far-UV to the far-IR. These data complement our spectroscopic campaign of over 300k galaxies, and are compiled from observations with a variety of facilities including: GALaxy Evolution eXplorer, Sloan Digital Sky Survey, Visible and Infrared Telescope for Astronomy (VISTA), Wide-field Infrared Survey Explorer, and Herschel, with the GAMA regions currently being surveyed by VLT Survey Telescope (VST) and scheduled for observations by Australian Square Kilometer Array Pathfinder (ASKAP). These data are processed to a common astrometric solution, from which photometry is derived for ∼221 373 galaxies with r <19.8 mag. Online tools are provided to access and download data cutouts, or the full mosaics of the GAMA regions in each band. We focus, in particular, on the reduction and analysis of the VISTA VIsta Kilo-degree INfrared Galaxy data, and compare to earlier data sets (i.e. 2MASS and UKIDSS) before combining the data and examining its integrity. Having derived the 21-band photometric catalogue, we proceed to fit the data using the energy balance code MAGPHYS. These measurements are then used to obtain the first fully empirical measurement of the 0.1-500 μm energy output of the Universe. Exploring the cosmic spectral energy distribution across three time-intervals (0.3-1.1, 1.1-1.8, and 1.8-2.4 Gyr), we find that the Universe is currently generating (1.5 ± 0.3) ×1035 h70 W Mpc-3, down from (2.5± 0.2) × 1035 h70 W Mpc-32.3 Gyr ago. More importantly, we identify significant and smooth evolution in the integrated photon escape fraction at all wavelengths, with the UV escape fraction increasing from 27(18) per cent at z = 0.18in NUV(FUV) to 34(23) per cent at z = 0.06. The GAMA PDR can be found at: http://gama-psi.icrar.org/.
Driver , S P , Wright , A H , Andrews , S K , Davies , L J , Kafle , P R , Lange , R , Moffett , A J , Mannering , E , Robotham , A S G , Vinsen , K , Alpaslan , M , Andrae , E , Baldry , I K , Bauer , A E , Bamford , S P , Bland-Hawthorn , J , Bourne , N , Brough , S , Brown , M J I , Cluver , M E , Croom , S , Colless , M , Conselice , C J , da Cunha , E , De Propris , R , Drinkwater , M , Dunne , L , Eales , S , Edge , A , Frenk , C , Graham , A W , Grootes , M , Holwerda , B W , Hopkins , A M , Ibar , E , van Kampen , E , Kelvin , L S , Jarrett , T , Jones , D H , Lara-Lopez , M A , Liske , J , Lopez-Sanchez , A R , Loveday , J , Maddox , S J , Madore , B , Mahajan , S , Meyer , M , Norberg , P , Penny , S J , Phillipps , S , Popescu , C , Tuffs , R J , Peacock , J A , Pimbblet , K A , Prescott , M , Rowlands , K , Sansom , A E , Seibert , M , Smith , M W L , Sutherland , W J , Taylor , E N , Valiante , E , Vazquez-Mata , J A , Wang , L , Wilkins , S M & Williams , R 2016 , ' Galaxy And Mass Assembly (GAMA) : Panchromatic Data Release (far-UV-far-IR) and the low-z energy budget ' Monthly Notices of the Royal Astronomical Society , vol 455 , no. 4 , pp. 3911-3942 . DOI: 10.1093/mnras/stv2505
Monthly Notices of the Royal Astronomical Society
© 2015 The Authors, Published by Oxford University Press on behalf of the Royal Astronomical Society. This work is made available online in accordance with the publisher’s policies. This is the final published version of the work, which was originally published at https://dx.doi.org/10.1093/mnras/stv2505
LD and SJM acknowledge support from the European Advanced Investigator grant cosmicism. SB acknowledges support from an ARC Future Fellowship (FT140101166).NB acknowledges support from EC FP7 SPACE project ASTRODEEP (Ref. No: 312725). EI acknowledges funding from CONICYT/FONDECYT post-doctoral project no: 3130504. MALL acknowledges support from UNAM through PAPIIT project IA101315. PN acknowledges the support of the Royal Society through the award of a University Research Fellowship, the European Research Council, through receipt of a Starting Grant (DEGAS-259586) and support of the Science and Technology Facilities Council (ST/L00075X/1). Funding for the SDSS and SDSS-II has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, the US Department of Energy, the National Aeronautics and Space Administration, the Japanese Monbukagakusho, the Max Planck Society, and the Higher Education Funding Council for England.