Using Urea to Test the Ability of CARMA to Detect New Molecules

L. E. Snyder, H.-L. Kuo, D. N. Friedel, L. W. Looney, B. J. McCall, University of Illinois; A. J. Remijan, NRAO Charlottesville;

F. J. Lovas, Optical Technology Division, NIST; and J. M.Hollis, NASA/GSFC, Greenbelt.

TURNER 2 mm SurveyArizona 12m: HPBW 38”-46”

12(0,12)-11(1,11) & 12(1,12)-11(0,11)135,361 MHz E(u)=47 K, LS=11.5------13(1,13)-12(0,12) & 13(0,13)-12(1,12)146,193 MHz E(u) = 51 K, LS=12.5------14(0,14)-13(1,13) & 14(1,14)-13(0,13)157,024 MHz E(u) = 58 K, LS= 13.5--------15(1,15)-14(0,14) & 15(0,15)-14(1,14)167,855 MHz E(u) = 66 K, LS=14.5

12 m Turner (12-11)

12 m Turner (13-12)

12 m Turner (14-13)

12 m Turner (15-14)

Nummelin et al. 1988, ApJS,117,427: 218-263 GHz

Swedish ESO-Submillimetre Telescope (SEST) 15m HPBW= 19” – 23” -----------------------------------------------------------

243,566 MHz 243,666 MHz21(1,20)-20(2,19) 22(0,22)-21(1,21)21(2,20)-20(1,19) 22(1,22)-21(0,21)E(u)=136K;LS=19.4 E(u)=137K; LS=21.5

232,737 MHz 232,837 MHz20(2,19)-19(1,18) 21(1,21)-20(0,20)20(1,19)-19(2,18) 21(0,21)-20(1,20)E(u)=124K,LS=18.4 E(u)=125K, LS=20.5

221,907 MHz 222,007 MHz19(1,18)-18(2,17) 20(0,20)-19(1,19)19(2,18)-18(1,17) 20(1,20)-19(0,19)E(u)=113K,LS=17.4 E(u)=114K,LS=19.5

SEST Data (MHz)243566(21-20) and 243666 (22-21)

SEST Data (MHz)232,737(21-20) and 232837(22-21)

SEST Data (MHz)221,907(19-18)

SEST Data (MHz)222,007(20-19)

BIMA(left) vs CARMA(right)

BIMA(9”x3”) vs CARMA(2”x1”)C Array

BIMA C Array MapsAll very similar, consistent with all

emission coming from urea

CARMA urea(red)/continuum map 21(*,21)-20(*,20) @ 232.837 GHz