Directly tracing the vertical stratification of molecules in protoplanetary disks

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Table 1

Selected files for molecules in MAPS sample disks.

Molecule	Transition	Freq. [GHz]	Robust	Beam^(a) [″]
¹²CO	J = 2−1	230.538	0.5	~0.13
¹³CO	J = 2−1	220.398	0.5	~0.13
C¹⁸O	J = 2−1	219.560	0.5	~0.13
¹³CO	J = 1−0	110.201	0.5	~0.26
HCN	J = 3−2	265.886	–	0.30
C₂H	N = 3−2	262.040	–	0.15
H₂CO	J = 3₀₃−2₀₂	218.222	–	0.30
HCO⁺	J = 1−0	89.188	0.5	~0.32

Notes. ^(a) For molecules that were selected based on the robust parameter, the beam value corresponds to the mean value of all sources. In all J = 2−1 transitions the typical deviation from the mean value between sources is 6.7% and in the J = 1−0 transitions it is 8.3%.

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