Detection of molecular gas in a distant submillimetre galaxy at z=4.76 with ATCA
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Author
Coppin, Kristen
Chapman, Scott
Smail, Ian
Swinbank, Mark
Walter, Fabian
Wardlow, Julie
Weiss, Axel
M. Alexander, David
Brandt, Niel
Dannerbauer, Helmut
De Breuck, Carlos
Dickinson, Mark
Dunlop, James
Edge, Alastair
Emonts, Bjorn
Greve, Thomas
Huynh, Minh
Ivison, Rob
Knudsen, Kirsten
Menten, Karl
Schinnerer, Eva
van der Werf, Paul
Attention
2299/12283
Abstract
We have detected the CO(2-1) transition from the submillimetre galaxy (SMG) LESSJ033229.4-275619 at z=4.755 using the new Compact Array Broadband Backend system on the Australian Telescope Compact Array. These data have identified a massive gas reservoir available for star formation for the first time in an SMG at z~5. We use the luminosity and velocity width (FWHM of 160 km/s) of the CO(2--1) line emission to constrain the gas and dynamical mass of Mgas~1.6x10^10 Msun and Mdyn(