Footpoints of the giant molecular loops in the Galactic center region

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Volume 613 (May 2018)

A&A, 613 (2018) A42

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Table 2

Imaged molecular transitions, their rms noise level () and the mainbeam efficiency.

Molecule	Transition	Rest. freq.	rms^c	η_mb
		[GHz]	[mK]
H¹³CN	1–0^a	86.340	54	0.65
SiO	2–1 v = 0	86.847	51	0.65
HNCO	4(0,4)−3(0,3)	87.925	53	0.64
HCN	1–0^a	88.632	58	0.64
HCO⁺	1–0	89.188	34	0.64
HNC	1–0^a	90.664	38	0.63
HC₃N	10–9	90.980	40	0.63
N₂H⁺	1–0^a	93.174	38	0.62
CH₃OH	2_K–	96.74	50	0.61
OCS	8–7	97.300	57	0.61
CS	2–1	97.980	50	0.61
SO	3(2)−2(1)	99.300	58	0.60
HC₃N	11–10	100.08	53	0.60
¹³CO	2–1^b	220.398	127^d	0.67

Notes. ^(a) Have fine or hyperfine structure transitions. ^(b) Observed with the APEX telescope. ^(c) The spectral resolution of the data is 0.27 MHz which corresponds to a velocity resolution from 0.78–0.94 km s⁻¹ depending of the frequency of the species. ^(d) Velocity resolution of 1.04 km s⁻¹.

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