Search for methylamine in high mass hot cores | Astronomy & Astrophysics (A&A)

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Table 2

Methylamine transitions observed in this study.

Transition	Freq.	E_up	A	g_up
	(MHz)	(K)	(s^-1)

4₂→ 4₁^a	229 310.298	36.9	1.32E-05	108
7₂→ 7₁^a	229 452.603	75.5	5.88E-06	60
8₂→ 8₁^b	235 735.037	92.8	6.13E-05	204
6₂→ 6₁^a	236 408.788	60.8	5.94E-05	52
2₂→ 2₁^a	237 143.530	22.0	3.82E-05	60
10₂→ 10₁^c	260 293.536	132.7	2.26E-05	52

Notes.Data from JPL database for molecular spectroscopy.

^(a)

Transition observed in all sources.

^(b)

Only observed in W3(H₂O).

^(c)

Only observed in W3(H₂O) and NGC 7538 IRS1.

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