Interferometric mapping of the 3.3-mm continuum emission of comet 17P/Holmes after its 2007 outburst

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Volume 542 (June 2012)

A&A, 542 (2012) A73

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Table 6

One-component model: best fit for astronomical silicates with 0.5 porosity and 48% ice fraction.

Onset	Size	a _max	V ₀	^a			^{b, c}	^{c, d}	^e
(Oct. UT)	index	(mm)	(m s^-1)		r_uv = 20 m		(10¹¹ kg)	(10¹¹ kg)	(10¹² m²)

23.3	−3	100	75	3.2	0.91	0.63	3.7	5.8	0.070–0.083
	−3.5	100	60	1.9	0.93	0.73	3.0	5.4	1.8–5.8
	−4	100	40	2.4	0.84	0.62	2.1	9.1	81–802
23.8	−3	100	85	3.4	0.90	0.61	3.7	5.7	0.068–0.082
	−3.5	100	65	2.3	0.88	0.64	3.1	5.2	1.7–5.5
	−4	100	35	1.7	0.87	0.65	2.3	7.9	71–708
23.8	−3	1000	200	2.3	0.89	0.63	20	27	0.039–0.045
	−3.5	1000	125	1.6	0.86	0.64	11	15	1.6–5.2
	−4	1000	40	1.5	0.85	0.66	3.5	9.4	71–696

Data					0.84 ± 0.11	0.80 ± 0.05			55^f

Notes.

^(a)

Reduced χ² from the fit of 27 and 28 October data.

^(b)

Dust mass within the synthesized beam on 27 October.

^(c)

Models with a_min = 1 μm. Values obtained with a_min = 0.1 μm differ by less than 20%.

^(d)

Total dust mass produced by the outburst.

^(e)

Total scattering cross-section. Calculations are for a_min in the range 0.1−1 μm.

^(f)

From optical observations (Li et al. 2011).

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