Dust Environment Model of the Interstellar Comet 2I/Borisov

Cremonese, G. and Fulle, M. and Cambianica, P. and Munaretto, G. and Capria, M. T. and Forgia, F. La and Lazzarin, M. and Migliorini, A. and Boschin, W. and Milani, G. and Aletti, A. and Arlic, G. and Bacci, P. and Bacci, R. and Bryssinck, E. and Carosati, D. and Castellano, D. and Buzzi, L. and Rubbo, S. Di and Facchini, M. and Guido, E. and Kugel, F. and Ligustri, R. and Maestripieri, M. and Mantero, A. and Nicolas, J. and Ochner, P. and Perrella, C. and Trabatti, R. and Valvasori, A. (2020) Dust Environment Model of the Interstellar Comet 2I/Borisov. The Astrophysical Journal, 893 (1). L12. ISSN 2041-8213

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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.

Item Type: Article
Subjects: Scholar Eprints > Physics and Astronomy
Divisions: Faculty of Law, Arts and Social Sciences > School of Art
Depositing User: Managing Editor
Date Deposited: 25 May 2023 10:10
Last Modified: 24 Jul 2024 10:00
URI: http://repository.stmscientificarchives.com/id/eprint/1953

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