The extraordinary composition of the blue comet C/2016 R2 (PanSTARRS)

N. Biver; D. Bockelée-Morvan; G. Paubert; R. Moreno; J. Crovisier; J. Boissier; E. Bertrand; H. Boussier; F. Kugel; A. McKay; N. Dello Russo; M. A. DiSanti

doi:10.1051/0004-6361/201833449

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Volume 619 (November 2018)

A&A, 619 (2018) A127

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Table 5

Line intensities and production rates based on mapping data.

Date	Molecule	Transition	Offset^a	Intensity^a	Total production rate
(yyyy/mm/dd.dd)			(′′)	(mK km s⁻¹)	(10²⁶ molec.s⁻¹)
2018/01/23.81	CO	2–1	3.0	1132 ± 12	977 ± 10
			7.9	776 ± 32	1100 ± 45
			11.9	537 ± 44	1219 ± 100
2018/01/24.80	CO	2–1	1.7	1285 ± 8	1040 ± 6
			4.7	1110 ± 13	1104 ± 13
			8.5	882 ± 34	1351 ± 52
			12.3	501 ± 26	1192 ± 62
			15.4	405 ± 47	1288 ± 150

2018/01/23.81	CH₃OH	5_K–4_K (6 lines)	3.0	435 ± 32^b	11.1 ± 2.1
			7.9	233 ± 83^b	11.4 ± 4.1

2018/01/23.81	H₂CO	3_1,2–2_1,1	3.0	52 ± 11	0.53 ± 0.11
			7.9	39 ± 28	0.88 ± 0.63
2018/01/24.78	H₂CO	3_0,3–2_0,2	2.9	24 ± 6	0.42 ± 0.10
			8.6	13 ± 21	0.58 ± 0.94

Notes. ^(a) Mean radial offset from the position of peak intensity and corresponding line integrated area, for radial averages of mapping points. ^(b) Sum of the six strongest lines.

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