The JCMT Nearby Galaxies Legacy Survey - VI. The distribution of gas and star formation in M 81

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Table 4

PDR data.

CO position	FUV coordinate		R_gal	UV flux	ρ_Hi	N_Hi^a	δ/δ₀	G₀	n	Uncertainty in n
	RA	Dec	kpc	10^-15ergcm^-2s^-1Å^-1	pc	10²¹cm^-2			cm^-3	%

1^b,^c	09:55:16.75	+69:08:55.62	5.6	4.11	469	2.50	1.139	0.14	0.4	44
2^b	09:55:16.75	+69:08:55.62	5.6	4.11	26	2.28	1.139	47.93	178	146
3	09:55:35.02	+69:07:34.69	4.7	6.99	81	2.93	1.251	8.17	7	69
4	09:55:10.25	+69:07:46.30	4.7	0.70	182	2.63	1.260	0.16	0.2	53
5	09:56:24.69	+68:59:17.12	8.0	1.59	251	1.55	0.887	0.19	5	31
6/9^d	09:56:03.79	+68:59:05.59	6.0	4.73	278	4.31	1.100	0.47	0.1	68
7	09:55:47.43	+68:59:23.33	5.1	5.46	95	4.26	1.205	4.61	0.6	81
8^e	09:55:37.50	+68:59:04.00	6.0	0.15	170	0.92	1.096	0.04	1.8	32

Notes. See Sect. 4 for an explanation of the parameters in this table

^(a)

H i background subtracted was 10²⁰cm^-2.

^(b)

CO positions 1 and 2 have one FUV source in the middle.

^(c)

A weak FUV source is present near position 1 but its flux could not be accurately measured.

^(d)

One measurement was carried out for CO positions 6 and 9.

^(e)

Upper limit for a source at the GALEX detection limit (F_FUV = 0.15 × 10^-15ergcm^-2s^-1Å^-1).

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