dc.contributor.author | Swinbank, Mark | en_US |
dc.contributor.author | Karim, Alexander | en_US |
dc.contributor.author | Smail, Ian | en_US |
dc.contributor.author | Hodge, Jackie | en_US |
dc.contributor.author | Walter, Fabian | en_US |
dc.contributor.author | Bertoldi, Frank | en_US |
dc.contributor.author | Biggs, Andy | en_US |
dc.contributor.author | De Breuck, Carlos | en_US |
dc.contributor.author | Chapman, Scott | en_US |
dc.contributor.author | Coppin, Kristen | en_US |
dc.contributor.author | Cox, Pierre | en_US |
dc.contributor.author | Danielson, Alice | en_US |
dc.contributor.author | Dannerbauer, Helmut | en_US |
dc.contributor.author | Ivison, Rob | en_US |
dc.contributor.author | Greve, Thomas | en_US |
dc.contributor.author | Knudsen, Kirsten | en_US |
dc.contributor.author | Menten, Karl | en_US |
dc.contributor.author | Simpson, James | en_US |
dc.contributor.author | Schinnerer, Eva | en_US |
dc.contributor.author | Wardlow, Julie | en_US |
dc.contributor.author | Weiss, Axel | en_US |
dc.contributor.author | van der Werf, Paul | en_US |
dc.date.accessioned | 2014-03-12T19:20:59Z | |
dc.date.available | 2014-03-12T19:20:59Z | |
dc.date.issued | 2012-09-06 | en_US |
dc.identifier.citation | Swinbank, Mark, Alexander Karim, Ian Smail, Jackie Hodge, et al. 2012. "An ALMA survey of Sub-millimetre Galaxies in the Extended Chandra Deep Field South: Detection of [C II] at z=4.4." Monthly Notices of the Royal Astronomical Society 427:1066. | en_US |
dc.identifier.issn | 0035-8711 | |
dc.identifier.uri | http://hdl.handle.net/10222/45438 | |
dc.identifier.uri | http://dx.doi.org/10.1111/j.1365-2966.2012.22048.x | |
dc.description.abstract | We present ALMA 870-um (345GHz) observations of two sub-millimetre galaxies (SMGs) drawn from an ALMA study of the 126 sub-millimeter sources from the LABOCA Extended Chandra Deep Field South Survey (LESS). The ALMA data identify the counterparts to these previously unidentified sub-millimeter sources and serendipitously detect bright emission lines in their spectra which we show are most likely to be [C II]157.74um emission yielding redshifts of z=4.42 and z=4.44. This blind detection rate within the 7.5-GHz bandpass of ALMA is consistent with the previously derived photometric redshift distribution of SMGs and suggests a modest, but not dominant (4. We find that the ratio of L_CII/L_FIR in these SMGs is much higher than seen for similarly far-infrared-luminous galaxies at z~0, which is attributed to the more extended gas reservoirs in these high-redshift ULIRGs. Indeed, in one system we show that the [C II] emission shows hints of extended emission on >3kpc scales. Finally, we use the volume probed by our ALMA survey to show that the bright end of the [C II] luminosity function evolves strongly between z=0 and z~4.4, reflecting the increased ISM cooling in galaxies as a result of their higher star-formation rates. These observations demonstrate that even with short integrations, ALMA is able to detect the dominant fine structure cooling lines from high-redshift ULIRGs, measure their energetics and trace their evolution with redshift. | en_US |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | |
dc.title | An ALMA survey of Sub-millimetre Galaxies in the Extended Chandra Deep Field South: Detection of [C II] at z=4.4 | en_US |
dc.title.alternative | arXiv:1209.1390 [astro-ph] | en_US |
dc.type | article | en_US |
dc.identifier.volume | 427 | |
dc.identifier.startpage | 1066 | en_US |