========================================================================== J/A+A/496/45 CO maps of three lensed submillimetre galaxies (Knudsen+, 2009) The following files can be converted to FITS (extension .fit or fit.gz) maps.dat ========================================================================== Query from: http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=J/A+A/496/45 ==========================================================================
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Beginning of ReadMe : J/A+A/496/45 CO maps of three lensed submillimetre galaxies (Knudsen+, 2009) ================================================================================ New CO detections of lensed submillimetre galaxies in A2218: Probing molecular gas in the LIRG regime at high redshift. Knudsen K.K., Neri R., Kneib J.-P., van der Werf P.P. <Astron. Astrophys. 496, 45 (2009)> =2009A&A...496...45K ================================================================================ ADC_Keywords: Galaxies, radio ; Millimetric/submm sources ; Radio lines; Carbon monoxide Keywords: galaxies: evolution - galaxies: high-redshift - galaxies: ISM - galaxies: starburst Abstract: Submillimetre galaxies (SMGs) are distant, dusty galaxies undergoing star formation at prodigious rates. Recently there has been major progress in understanding the nature of the bright SMGs (i.e. S_850um_>5mJy). The samples for the fainter SMGs are small and are currently in a phase of being built up through identification studies. We study the molecular gas content in the two SMGs, SMMJ163555 and SMMJ163541, at redshifts z=1.034 and z=3.187 with unlensed submillimetre fluxes of 0.4mJy and 6.0mJy. Both SMGs are gravitationally lensed by the foreground cluster Abell 2218. We used the IRAM Plateau de Bure Interferometer to obtain observations at 3mm of the lines CO(2-1) for SMMJ163555 and CO(3-2) for SMMJ163541. Additionally, we obtained CO(4-3) observations for the candidate z=4.048 SMMJ163556 with an unlensed submillimetre flux of 2.7mJy. Results: The CO(2-1) line was detected for SMMJ163555 at redshift 1.0313 with an integrated line intensity of 1.2+/-0.2Jy.km/s and a line width of 410+/-120km/s. From this a gas mass of 1.6x10^9^M_sun_ is derived and a star formation efficiency of 440L_sun_/M_sun_ estimated. The CO(3-2) line was detected for SMMJ163541 at redshift 3.1824, possibly with a second component at redshift 3.1883, with an integrated line intensity of 1.0+/-0.1Jy.km/s and a line width of 280+/-50km/s. From this a gas mass of 2.2x10^10^M_sun_ is derived and a star formation efficiency of 1000L_sun_/M_sun_ is estimated. For SMMJ163556, the CO(4-3) is undetected within the redshift range 4.035-4.082 down to a sensitivity of 0.15Jy.km/s. Description: The calibrated IRAM PdBI CO observations of the three high redshift SMGs, SMMJ163555, SMMJ163541, and SMMJ163556 are here available in fits format. The spectra cubes are given in RA, Dec, and velocity. The files are named according to the source.