CO map and steep Kennicutt-Schmidt relation in the extended UV disk of M 63

Home

All issues

Volume 566 (June 2014)

A&A, 566 (2014) A147

Full HTML

Free Access

Table 2

CO mapping over the bright UV region at 1.36 r₂₅.

			CO(1–0)			CO(2–1)
Offsets		Time	rmsa	FWHM b	F ^c	rmsa	FWHM b	F ^c	r _2,1 ^d	M _H₂ ^e	Σ_H₂ ^f
(″)	(″)	(min)	(mK)	(kms^-1)	(K km s^-1)	(mK)	(kms^-1)	(K km s^-1)		(10⁶M_⊙)	(M_⊙ pc²)

−66	0	118	5	10	<0.15	6	10	<0.18		<0.97	<0.38
−66	+22	117	5	11	0.14 ± 0.06‡	6	10	<0.18	<0.39	0.90 ± 0.39	0.35 ± 0.15
−44	0	186	4	10	<0.12	4	10	<0.12		<0.78	0.30
−44	+22	164	4	10	<0.12	6	10	<0.18		<0.78	0.30
−22	0	171	4	14	0.21 ± 0.06	5	10	<0.15	<0.22	1.36 ± 0.39	0.53 ± 0.15
−22	+22	148	4	10	<0.12	6	10	<0.18		<0.78	<0.30
0	0	164	4	10	<0.12	5	10	<0.15		<0.78	<0.30
0	+22	148	5	10	<0.15	6	10	<0.18		<0.97	<0.38
+22	0	123	5	10	<0.15	7	10	<0.21		<0.97	<0.38
+22	+22	116	5	10	<0.15	8	10	<0.24		<0.97	<0.38
+44	0	63	7	10	<0.21	9	10	<0.27		<1.36	<0.53
+44	+22	62	7	10	<0.21	8	10	<0.24		<1.36	<0.53
All offsets		1932	1	23	0.11 ± 0.02	2	10	<0.06	<0.17	0.71 ± 0.13	0.28 ± 0.05

Notes. The last separate line gives the values obtained when summing all scans at the 12 offset pointings.

^(a)

Rms noises at, respectively, 3 mm and 1 mm, measured per channel of 3.2 km s^-1 and 1.3 km s^-1.

^(b)

Full widths at half maximum of, respectively, CO(1–0) and CO(2–1) lines as determined from fitting Gaussian profiles.

^(c)

Integrated CO(1–0) and CO(2–1) line fluxes as determined from fitting Gaussian profiles. The value marked with ‡ corresponds to a potentially less reliable measurement, because of the CO line detection at barely 3σ. Upper limits are 3σ and are calculated assuming a 10 km s^-1 line width.

^{(d) +(e) +(f)}

CO luminosity ratios, H₂ masses, and H₂ surface densities, respectively, calculated using the same prescriptions as in Table 1.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.