CO lines


CO lines are various and important in astronomical research. The first figure is from http://pml.nist.gov/cgi-bin/micro/table5/start.pl and the second figure is from http://www.narrabri.atnf.csiro.au/observing/spectral.html.

Frequency Unc. Formula Quantum Tr(K) Source Telescope Astr. Lab.
(MHz) numbers /Ta(K) ref. ref.
107288.945 -3 13C17O 1-0 0.029 rho Oph C SEST 15m Ben01 Puz03
214574.077 -8 13C17O 2-0 0.055 rho Oph C SEST 15m Ben01 Puz03
104711.393* -2 13C18O 1-0 n.r. OriMC-2 NRAO 11m Wan76  
110201.354 -1 13CO 1-0 9.3 OriMC-1 NRAO 11m Uli76 Caz04
220398.684 -1 13CO 2-1 17 OriMC-1 NRAO 11m Phi77 Caz04
330587.965 -1 13CO 3-2 16.03 OriMC-1 NRAO 12m Jew89 Caz04
661067.276 -2 13CO 6-5 64 OMC-IRc2 JCMT 15m Gra90 Kla00
881272.809* -2 13CO 8-7 148.6 OriMC-1 CSO 10.4m Com05  
991329.305 -5 13CO 9-8 3 W3 (IRS5) KAO 1m Bor91 Kla00
1979726.393 -15 13CO 18-17 2.3e OriMC-1 KAO 1m Gen90 Kla00
105871.11 -4 14CO 1-0 0.002 IRC+10216 BTL 7m Wri94 Ros58
112358.78 -15 C17O 1-0 F=3/2-5/2 0.2 B335 BTL 7m Fre81 Fre81
112358.988 -8 C17O 1-0 F=7/2-5/2 0.43 B335 BTL 7m Fre81 Fre81
112360.005 -8 C17O 1-0 F=5/2-5/2 0.38 B335 BTL 7m Fre81 Fre81
224714.187 -80 C17O 2-1 F=9/2-7/2 1.5 OriMC-1 OVRO 10.4m Sut85 KLa03
224714.385* -3 C17O 2-1 1.5 OriMC-1 OVRO 10.4m Sut85 Win84
224715.31 -15 C17O 2-1 F=7/2-7/2 1.5 OriMC-1 OVRO 10.4m Sut85 Kla03
337061.104* -12 C17O 3-2 1.47 OriMC-1 NRAO 12m Jew89  
674009.286* -19 C17O 6-5 6.6 OriMC-1 CSO 10.4m Sch01  
898522.910* -32 C17O 8-7 10.3 OriMC-1 CSO 10.4m Com05  
109782.176 -1 C18O 1-0 2.1 OriMC-1 NRAO 11m Uli76 Caz03
219560.358 -1 C18O 2-1 3.5 DR21 NRAO 11m Phi77 Caz03
329330.552 -2 C18O 3-2 15.3 Ori-bar a=+20" JCMT 15m Hog95 Kla01
658553.278 -1 C18O 6-5 25 OriMC-1 CSO 10.4m Sch01 Kla01
877921.954* -3 C18O 8-7 18.1 OriMC-1 CSO 10.4m Com05  
115271.202* -1 CO 1-0 60 OriMC-1 NRAO 11m Uli76  
230538 -1 CO 2-1 70 OriMC-1 NRAO 11m Phi77  
345795.990* -1 CO 3-2 70 OriMC-1 NRAO 12m Jew89  
461040.768* -1 CO 4-3 60 OriMC-1 KAO 1m Phi80  
691473.076* -1 CO 6-5 100 OriMC-1 IRTF 3m Gol81a  
806651.801* -1 CO 7-5 110 OriMC-1 IRTF 3m Sch85a  
1036912.385* -1 CO 9-8 17.5 W3 (IRS5) KAO 1m Bor91  
1267014.482* -1 CO 11-10 65 OriMC-1 KAO 1m Ros89  
1381995.102* -2 CO 12-11 65 OriMC-1 KAO 1m Ros89  
1611793.508* -3 CO 14-13 n.r. M17 KAO 1m Har87  
1841345.512* -3 CO 16-15 2.6aa Sgr A West KAO 1m Gen85  
1956018.137* -4 CO 17-16 0.7 q OriMC-1 KAO 1m Sta82  
2413917.113* -5 CO 21-20 0.85q OriMC-1 KAO 1m Wat80  
2528172.068* -5 CO 22-21 1.4 q OriMC-1 KAO 1m Wat80  
3097909.377* -6 CO 27-26 0.43q OriMC-1 KAO 1m Sto81a  
3438364.643* -7 CO 30-29 0.16q OriMC-1 KAO 1m Sto81a  
235789.641 -30 CO+ 3/2,2-1/2,1 0.1 M17SW CSO 10.4m Lat93 Sas81b
236062.553 -20 CO+ 5/2,2-3/2,1 0.1 M17SW NRAO 12m Lat93 Sas81b
353741.26 -10 CO+ 5/2,3-3/2,2 0.1 M17SW CSO 10.4m Lat93 Sas81b
354014.254* -88 CO+ 7/2,3-5/2,2 0.18 Ori-bar a=+20" CSO 10.4m Hog95  

 

Rest frequency of spectral lines

Atom/Molecule Line Name Rest frequency
(GHZ)
HI neutral hydrogen 1.420405752
OH hydroxyl radical 1.6122310
OH hydroxyl radical 1.6654018
OH hydroxyl radical 1.6673590
OH hydroxyl radical 1.7205300
H2CO ortho-formaldehyde 4.829660
CH3OH methanol 6.668518
HC3N cyanoacetylene 9.098332
CH30H methanol 12.178593
H2CO ortho-formaldehyde 14.488490
C3H2 ortho-cyclopropenylidene 18.343145
H20 ortho-water 22.23507985
NH3 para-ammonia 23.694506
NH3 para-ammonia 23.722634
NH3 ortho-ammonnia 23.870130
SiO silicon monoxide 42.820570
SiO silicon monoxide 43.122090
SiO silicon monoxide 43.423853
CS carbon monosulfide 48.990964
DCO+ deuterated formylium 72.039331
SiO silicon monoxide 85.640456
SiO silicon monoxide 86.243442
H13CO+ formylium 86.754294
SiO silicon monoxide 86.846998
HCN hydrogen cyanide 88.631847
HCO+ formylium 89.188518
HNC hydrogen isocyanide 90.663574
N2H+ diazenylium 93.173809
CS carbon monosulfide 97.980968
C18O carbon monoxide 109.782182
13CO carbon monoxide 110.20137
CO carbon monoxide 115.271203