Herschel/PACS spectroscopy of NGC 4418 and Arp 220: H2O, H218O, OH, 18OH, O I, HCN, and NH3

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Table 8

¹⁸OH line equivalent widths and fluxes.

		NGC 4418		Arp 220
Line	λ	W _eq ^a	Flux^a	W _eq ^a	Flux^a
	(μm)	(km s^-1)	(10^-21 W cm^-2)	(km s^-1)	(10^-21 W cm^-2)

¹⁸OH	65.690	1.7(0.9)	−1.1(0.6)	4.9(0.9)	−10.6(1.9)
¹⁸OH	84.947	2.1(0.9)	−0.9(0.4)	7.0(0.8)	−11.8(1.3)
¹⁸OH	85.123	0.7(0.7)	−0.3(0.3)	12.9(0.8)	−21.5(1.4)
¹⁸OH	120.171	0.4(0.8)	−0.1(0.2)	38.7(2.2)	−36.7(2.0)

Notes.

^(a)

Numbers in parenthesis indicate 1σ uncertainties from Gaussian fits to the lines.

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