Dense gas in a giant molecular filament | Astronomy & Astrophysics (A&A)

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Table 1

Emission area and filling factor.

Molecule	Area^(*)	Filling factor^(*)
	(arcmin²)	relative to ¹³CO
¹³CO	1186.1	1
HCO⁺	330.8 (534.7)	0.28 (0.45)
HCN	251.4 (421.3)	0.21 (0.36)
HNC	207.1 (304.5)	0.17 (0.26)
N₂H⁺	75.6 (130.8)	0.06 (0.11)

Notes. ^(*) The area and filling factors in brackets are measured with the data that are smoothed and regridded to the same angular resolution of 46′′ and pixel size 22′′ as the ¹³CO data.

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