Table 1 Open in new tab Galaxy...

Galaxy	V_hel (km s⁻¹)	Type^a	D^a₂₅ (arcmin)	i^a (°)	PA^b (°)	K(tot)^c (mag)	log L^d_FIR (L_⊙)	Distance^e (Mpc)	σ_obs^f (km s⁻¹)	σ_c-c^g (km s⁻¹)	σ_{H I}^h (km s⁻¹)
NGC 628	648	SA(s)c	10.5	7	20	6.84	9.55	7.3	4.1 ± 2.5	3.5 ± 0.1	12
NGC 2403	121	SAB(s)cd	21.9	56	124	6.19	9.10	3.2	5.2 ± 4.9	3.9 ± 0.2	14
NGC 3184	574	SAB(rs)cd	7.4	16	179	7.78	9.69	11.1	6.8 ± 5.9	5.8 ± 0.4	13
NGC 3938	829	SA(s)c	5.4	25	52	7.81	9.72	14.2	4.4 ± 2.9	2.7 ± 0.3	10ⁱ
NGC 4254	2412	SA(s)c	5.4	29	56	6.93	10.62	16.7	9.2 ± 4.5	8.5 ± 0.3	–
NGC 4303	1577	SAB(rs)bc	6.5	17	318	6.84	10.59	16.7	8.0 ± 4.2	7.2 ± 0.2	–
NGC 4321	1599	SAB(s)bc	7.6	32	143	6.59	10.47	16.7	12 ± 11	11.1 ± 0.6	–
NGC 4501	2213	SA(rs)b	6.9	58	140	6.27	10.41	16.7	20 ± 15	20 ± 2	–
NGC 4535	1972	SAB(s)c	7.1	41	0	7.38	10.12	16.7	5.1 ± 4.4	3.7 ± 0.4	–
NGC 4736	295	(R)SA(r)ab	11.2	36	296	5.11	9.79	5.2	12 ± 9	11.9 ± 0.7	25
NGC 4826	390	(R)SA(rs)ab	10.0	57	121	5.33	9.85	7.5	14 ± 11	13 ± 2	60
NGC 5055	495	SA(rs)bc	12.6	59	102	5.61	10.30	8.0	9.4 ± 6.6	8.7 ± 0.3	24

Galaxy	V_hel (km s⁻¹)	Type^a	D^a₂₅ (arcmin)	i^a (°)	PA^b (°)	K(tot)^c (mag)	log L^d_FIR (L_⊙)	Distance^e (Mpc)	σ_obs^f (km s⁻¹)	σ_c-c^g (km s⁻¹)	σ_{H I}^h (km s⁻¹)
NGC 628	648	SA(s)c	10.5	7	20	6.84	9.55	7.3	4.1 ± 2.5	3.5 ± 0.1	12
NGC 2403	121	SAB(s)cd	21.9	56	124	6.19	9.10	3.2	5.2 ± 4.9	3.9 ± 0.2	14
NGC 3184	574	SAB(rs)cd	7.4	16	179	7.78	9.69	11.1	6.8 ± 5.9	5.8 ± 0.4	13
NGC 3938	829	SA(s)c	5.4	25	52	7.81	9.72	14.2	4.4 ± 2.9	2.7 ± 0.3	10ⁱ
NGC 4254	2412	SA(s)c	5.4	29	56	6.93	10.62	16.7	9.2 ± 4.5	8.5 ± 0.3	–
NGC 4303	1577	SAB(rs)bc	6.5	17	318	6.84	10.59	16.7	8.0 ± 4.2	7.2 ± 0.2	–
NGC 4321	1599	SAB(s)bc	7.6	32	143	6.59	10.47	16.7	12 ± 11	11.1 ± 0.6	–
NGC 4501	2213	SA(rs)b	6.9	58	140	6.27	10.41	16.7	20 ± 15	20 ± 2	–
NGC 4535	1972	SAB(s)c	7.1	41	0	7.38	10.12	16.7	5.1 ± 4.4	3.7 ± 0.4	–
NGC 4736	295	(R)SA(r)ab	11.2	36	296	5.11	9.79	5.2	12 ± 9	11.9 ± 0.7	25
NGC 4826	390	(R)SA(rs)ab	10.0	57	121	5.33	9.85	7.5	14 ± 11	13 ± 2	60
NGC 5055	495	SA(rs)bc	12.6	59	102	5.61	10.30	8.0	9.4 ± 6.6	8.7 ± 0.3	24

Table 1

Galaxy properties and velocity dispersions.

Galaxy	V_hel (km s⁻¹)	Type^a	D^a₂₅ (arcmin)	i^a (°)	PA^b (°)	K(tot)^c (mag)	log L^d_FIR (L_⊙)	Distance^e (Mpc)	σ_obs^f (km s⁻¹)	σ_c-c^g (km s⁻¹)	σ_{H I}^h (km s⁻¹)
NGC 628	648	SA(s)c	10.5	7	20	6.84	9.55	7.3	4.1 ± 2.5	3.5 ± 0.1	12
NGC 2403	121	SAB(s)cd	21.9	56	124	6.19	9.10	3.2	5.2 ± 4.9	3.9 ± 0.2	14
NGC 3184	574	SAB(rs)cd	7.4	16	179	7.78	9.69	11.1	6.8 ± 5.9	5.8 ± 0.4	13
NGC 3938	829	SA(s)c	5.4	25	52	7.81	9.72	14.2	4.4 ± 2.9	2.7 ± 0.3	10ⁱ
NGC 4254	2412	SA(s)c	5.4	29	56	6.93	10.62	16.7	9.2 ± 4.5	8.5 ± 0.3	–
NGC 4303	1577	SAB(rs)bc	6.5	17	318	6.84	10.59	16.7	8.0 ± 4.2	7.2 ± 0.2	–
NGC 4321	1599	SAB(s)bc	7.6	32	143	6.59	10.47	16.7	12 ± 11	11.1 ± 0.6	–
NGC 4501	2213	SA(rs)b	6.9	58	140	6.27	10.41	16.7	20 ± 15	20 ± 2	–
NGC 4535	1972	SAB(s)c	7.1	41	0	7.38	10.12	16.7	5.1 ± 4.4	3.7 ± 0.4	–
NGC 4736	295	(R)SA(r)ab	11.2	36	296	5.11	9.79	5.2	12 ± 9	11.9 ± 0.7	25
NGC 4826	390	(R)SA(rs)ab	10.0	57	121	5.33	9.85	7.5	14 ± 11	13 ± 2	60
NGC 5055	495	SA(rs)bc	12.6	59	102	5.61	10.30	8.0	9.4 ± 6.6	8.7 ± 0.3	24

Galaxy	V_hel (km s⁻¹)	Type^a	D^a₂₅ (arcmin)	i^a (°)	PA^b (°)	K(tot)^c (mag)	log L^d_FIR (L_⊙)	Distance^e (Mpc)	σ_obs^f (km s⁻¹)	σ_c-c^g (km s⁻¹)	σ_{H I}^h (km s⁻¹)
NGC 628	648	SA(s)c	10.5	7	20	6.84	9.55	7.3	4.1 ± 2.5	3.5 ± 0.1	12
NGC 2403	121	SAB(s)cd	21.9	56	124	6.19	9.10	3.2	5.2 ± 4.9	3.9 ± 0.2	14
NGC 3184	574	SAB(rs)cd	7.4	16	179	7.78	9.69	11.1	6.8 ± 5.9	5.8 ± 0.4	13
NGC 3938	829	SA(s)c	5.4	25	52	7.81	9.72	14.2	4.4 ± 2.9	2.7 ± 0.3	10ⁱ
NGC 4254	2412	SA(s)c	5.4	29	56	6.93	10.62	16.7	9.2 ± 4.5	8.5 ± 0.3	–
NGC 4303	1577	SAB(rs)bc	6.5	17	318	6.84	10.59	16.7	8.0 ± 4.2	7.2 ± 0.2	–
NGC 4321	1599	SAB(s)bc	7.6	32	143	6.59	10.47	16.7	12 ± 11	11.1 ± 0.6	–
NGC 4501	2213	SA(rs)b	6.9	58	140	6.27	10.41	16.7	20 ± 15	20 ± 2	–
NGC 4535	1972	SAB(s)c	7.1	41	0	7.38	10.12	16.7	5.1 ± 4.4	3.7 ± 0.4	–
NGC 4736	295	(R)SA(r)ab	11.2	36	296	5.11	9.79	5.2	12 ± 9	11.9 ± 0.7	25
NGC 4826	390	(R)SA(rs)ab	10.0	57	121	5.33	9.85	7.5	14 ± 11	13 ± 2	60
NGC 5055	495	SA(rs)bc	12.6	59	102	5.61	10.30	8.0	9.4 ± 6.6	8.7 ± 0.3	24

^aButa, Corwin & Odewahn (2007).

^b Position angle used for radial averages. NGC 628, 3184: Tamburro et al. (2008); NGC 2403, 4736, 4826, 5055: de Blok et al. (2008); NGC 3938: Paturel et al. (2000); NGC 4254, 4303, 4501, 4535: (Cayatte et al. 1990); NGC 4321: Knapen et al. (1993).

^cK-band total apparent magnitude from Jarrett et al. (2003).

^d From Sanders et al. (2003) adjusted for the distances adopted here.

^e NGC 628: Karachentsev et al. (2004); NGC 2403: Freedman et al. (2001); NGC3184: Leonard et al. (2002); NGC 3938, 5055: distance calculated using the Hubble flow distance with velocity corrected for Virgo infall (Mould et al. 2000) and H₀ = 73 km s⁻¹ Mpc⁻¹; Virgo Cluster: Mei et al. (2007); NGC 4736, 4826: Tonry et al. (2001).

^f Observed CO J = 3–2 velocity dispersion and standard deviation. Regions of high velocity dispersion in the outer portions of the disc were masked before calculating the velocity dispersion (see the text). Excludes a 5.3-kpc diameter region in the centre of each Virgo galaxy (9 pixels), NGC 3938 (11 pixels) and NGC 5055 (19 pixels). All pixels are included for NGC 628, 2403 and 3184. For NGC 4736 and 4826, a 9-pixel region is excluded to give an upper limit to the outer disc velocity dispersion (see the text). Note that the uncertainty in the mean for σ_obs is the same as for σ_c-c.

^g Mean cloud–cloud velocity dispersion and the uncertainty in the mean corrected for the contribution from the internal velocity dispersion of individual giant molecular clouds (see the text). Note that the uncertainty in the mean is calculated from the standard deviation given in the previous column by dividing by formula ⁠, where N is the number of measurements for a given galaxy.

^h H i velocity dispersion measured from naturally weighted maps from Walter et al. (2008) over the same area as the CO measurement.

ⁱ From van der Kruit & Shostak (1982).

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