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Table 1

Observation details: frequencies, receivers, beam sizes, and beam efficiencies.

Telescope Receiver Transition Frequency θHPBW ηmb
(GHz) (′′)
SOFIA GREAT L1 CO(11–10) 12 67 014.49 21.0 0.67
LFA [C II] 2P3∕22P1∕2 19 00 536.90 14.0 0.67 (a)
LFA [13C II] (F = 2–1) 19 00 466.10 14.0 0.67 (a)
HFA [O I] 3P03P1 47 44 777.49 6.3 0.65 (a)
APEX PI230 CO(2–1) 2 30 538.000 27.3 0.68
13CO(2–1) 2 20 398.684 28.5 0.68
C18O(2–1) 2 19 560.354 28.6 0.68
H2CO(303–202) 2 18 222.192 28.8 0.68
H2CO(322–221) 2 18 475.630 28.8 0.68
H2CO(321–220) 2 18 760.066 28.8 0.68
SO (65–54) 2 19 949.44 28.6 0.68

Notes. (a) Median across array pixels.

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