U line procedure DeltaF(J) = 2B(J+1) separations =2B (MHz)

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U line procedure DeltaF(J) = 2B(J+1) separations =2B (MHz) 106913 -85530 21383 Check: 106913/21383 ca integer 4.999906!! Good Eh? Prediction - next line at +21383 128296 Structure estimate only H/O/C/N likely so HOCO+ or HOCN most likely actually turned out to be protonated CO2 U line procedure 10693 85530 Harry Kroto 2004

Check: 106913/21383 ca integer 4.999906!! Good Eh? DeltaF(J) = 2B(J+1) separations =2B (MHz) 106913 -85530 21383 Check: 106913/21383 ca integer 4.999906!! Good Eh? Prediction - next line at +21383 128296 Structure estimate only H/O/C/N likely so HOCO+ or HOCN most likely actually turned out to be protonated CO2 106913 85530 Harry Kroto 2004

Check: 106913/21383 ca integer 4.999906!! Good Eh? ΔF(J) = 2B(J+1) separations =2B (MHz) 106913 -85530 21383 Check: 106913/21383 ca integer 4.999906!! Good Eh? Prediction - next line at +21383 128296 Structure estimate only H/O/C/N likely so HOCO+ or HOCN most likely actually turned out to be protonated CO2 10693 85530 Harry Kroto 2004

Check: 106913/21383 ca integer 4.999906!! Good Eh? ΔF(J) = 2B(J+1) separations =2B (MHz) 106913 -85530 21383 Check: 106913/21383 ca integer 4.999906!! Good Eh? Prediction - next line at +21383 128296 Structure estimate only H/O/C/N likely so HOCO+ or HOCN most likely actually turned out to be protonated CO2 10693 85530 Harry Kroto 2004

predict the frequency (in MHz) of the next line to higher frequency. ΔF(J) = 2B(J+1) Separations = 2B (MHz) 106913 MHz 85530 MHz Homework Assuming these two interstellar lines are consecutive rotational transitions of a linear molecule: predict the frequency (in MHz) of the next line to higher frequency. Assign the J values of the lines 10693 85530 Harry Kroto 2004