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 1

Observation log and flux measurements.

Date UT	Freq.	N _A ^a	Beam	S/T_A^b	Peak intensity	S/N	ΔO^c
(October 2007)	(GHz)		(″ × ″)	(Jy/K)	(mJy/beam)		(″)

Total datasets ^d
26.92–27.29	88.6	5	6.88 × 5.97	23.14	2.38 ± 0.07	34	0.2
28.08–28.33	90.6	6	6.44 × 4.77	22.4	1.9 ± 0.1	19	0.3

Subsets ^e
27.08–27.29	88.6	5	7.49 × 5.89	23.14	2.45 ± 0.12	20	0.3
28.08–28.29	90.6	5	7.19 × 5.66	22.4	2.06 ± 0.14	15	0.4

Notes.

^(a)

Number of observing antennas.

^(b)

Conversion factor between flux and antenna temperature.

^(c)

ΔO is the astrometric precision of the position measured on the map. It is given by the interferometric beam divided by the signal to noise ratio.

^(d)

In this part we take into account all the observations for each day.

^(e)

Here the maps were done with the observations performed in the common UT range of 27 and 28 October.

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