Dust Environment Model of the Interstellar Comet 2I/Borisov

Journal
Date Issued
2020
Author(s)
•
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Cambianica, P.
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•
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La Forgia, F.
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Lazzarin, M.
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Boschin, W.
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Milani, G.
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Aletti, A.
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Arlic, G.
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Bacci, P.
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Bacci, R.
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Bryssinck, E.
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Carosati, D.
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Castellano, D.
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Buzzi, L.
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Di Rubbo, S.
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Facchini, M.
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Guido, E.
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Kugel, F.
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Ligustri, R.
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Maestripieri, M.
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Mantero, A.
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Nicolas, J.
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Ochner, P.
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Perrella, C.
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Trabatti, R.
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Valvasori, A.
DOI
Abstract
2I/Borisov is the first interstellar comet discovered on 2019 August 30, and it soon showed a coma and a dust tail. This study reports the results of images obtained at the Telescopio Nazionale Galileo telescope, on La Palma - Canary Islands, in 2019 November and December. The images have been obtained with the R filter in order to apply our dust tail model. The model has been applied to the comet 67P/Churyumov-Gerasimenko and compared to the Rosetta dust measurements showing a very good agreement. It has been applied to the comet 2I/Borisov, using almost the same parameters, obtaining a dust environment similar to that of 67P/Churyumov-Gerasimenko, suggesting that the activity may be very similar. The dust tail analysis provided a dust-loss rate Qd ≍ 35 kg s-1 in 2019 November and Qd ≍ 30 kg s-1 in 2019 December.
Volume
893
Issue
1
Start page
L12
Uri
Url
Issn Identifier
2041-8205
Ads BibCode
2020ApJ...893L..12C
Rights
open.access
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