Galaxy And Mass Assembly (GAMA): Panchromatic Data Release (far-UV --- far-IR) and the low-z energy budget
Creators: name: Driver, Simon P.
name: Wright, Angus H.
name: Andrews, Stephen K.
name: Davies, Luke J.
name: Kafle, Prajwal R.
name: Lange, Rebecca
name: Moffett, Amanda J.
name: Mannering, Elizabeth
name: Robotham, Aaron S. G.
name: Vinsen, Kevin
name: Alpaslan, Mehmet
name: Andrae, Ellen
name: Baldry, Ivan K.
name: Bauer, Amanda E.
name: Bamford, Steven P.
name: Bland-Hawthorn, Joss
name: Bourne, Nathan
name: Brough, Sarah
name: Brown, Michael J. I.
name: Cluver, Michelle E.
name: Croom, Scott
name: Colless, Matthew
name: Conselice, Christopher J.
name: da Cunha, Elisabete
name: De Propris, Roberto
name: Drinkwater, Michael
name: Dunne, Loretta
name: Eales, Steve
name: Edge, Alastair
name: Frenk, Carlos
name: Graham, Alister W.
name: Grootes, Meiert
name: Holwerda, Benne W.
name: Hopkins, Andrew M.
name: Ibar, Edo
name: van Kampen, Eelco
name: Kelvin, Lee S.
name: Jarrett, Tom
name: Jones, D. Heath
name: Lara-Lopez, Maritza A.
name: Lopez-Sanchez, Angel R.
name: Liske, Jochen
name: Loveday, Jon
name: Maddox, Steve J.
name: Madore, Barry
name: Meyer, Martin
name: Norberg, Peder
name: Penny, Samantha J.
name: Phillipps, Stephen
name: Popescu, Cristina
name: Tuffs, Richard J.
name: Peacock, John A.
name: Pimbblet, Kevin A.
name: Rowlands, Kate
name: Sansom, Anne E.
name: Seibert, Mark
name: Smith, Matthew W. L.
name: Sutherland, Will J.
name: Taylor, Edward N.
name: Valiante, Elisabetta
name: Wang, Lingyu
name: Wilkins, Stephen M.
name: Williams, Richard
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: We present the GAMA Panchromatic Data Release (PDR) constituting over 230deg$^2$ of imaging with photometry in 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: GALEX, SDSS, VISTA, WISE, and Herschel, with the GAMA regions currently being surveyed by VST and scheduled for observations by ASKAP. These data are processed to a common astrometric solution, from which photometry is derived for 221,373 galaxies with r&lt;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 VIKING data, and compare to earlier datasets (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$μ$m energy output of the Universe. Exploring the Cosmic Spectral Energy Distribution (CSED) across three time-intervals (0.3-1.1Gyr, 1.1-1.8~Gyr and 1.8---2.4~Gyr), we find that the Universe is currently generating $(1.5 \pm 0.3) \times 10^{35}$ h$_{70}$ W Mpc$^{-3}$, down from $(2.5 \pm 0.2) \times 10^{35}$ h$_{70}$ W Mpc$^{-3}$ 2.3~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)% at z=0.18 in NUV(FUV) to 34(23)% at z=0.06. The GAMA PDR will allow for detailed studies of the energy production and outputs of individual systems, sub-populations, and representative galaxy samples at $z&lt;0.5$. The GAMA PDR can be found at: http://gama-psi.icrar.org/
description: 31 pages and 30 figures. Accepted in MNRAS. High-resolution copy available from our release site: http://gama-psi.icrar.org/ or directly via http://www.simondriver.org/mwavev05.pdf