Jewitt, David; Luu, Jane (2019). "Initial Characterization of Interstellar Comet 2I/2019 Q4 (Borisov)". arXiv:1910.02547v2 [astro-ph.EP]。
Ye, Quanzi; et al. (2019). "Pre-discovery Activity of New Interstellar Comet 2I/Borisov Beyond 5 AU". arXiv:1911.05902v1 [astro-ph.EP]。
Kareta, Theodore; Andrews, Jennifer; Noonan, John W.; Harris, Walter M.; Smith, Nathan; O'Brien, Patrick; Sharkey, Benjamin N. L.; Reddy, Vishnu; Springmann, Alessondra; Lejoly, Cassandra (2019). "Carbon Chain Depletion of 2I/Borisov". arXiv:1910.03222 [astro-ph.EP]。
Opitom, C.; Fitzsimmons, A.; Jehin, E.; Moulane, Y.; Hainaut, O.; Meech, K. J.; Yang, B.; Snodgrass, C.; Micheli, M.; Keane, J. V.; Benkhaldoun, Z.; Kleyna, J. T. (2019). "2I/Borisov: A C2 depleted interstellar comet". arXiv:1910.09078v2 [astro-ph.EP]。
Lin, Hsing Wen; Lee, Chien-Hsiu; Gerdes, David W.; Adams, Fred C.; Becker, Juliette; Napier, Kevin; Markwardt, Larissa (2019). "Low Resolution Optical Spectra and Diatomic Carbon Detections of 2I/Borisov". arXiv:1912.06161v1 [astro-ph.EP]。
McKay, Adam J.; Cochran, Anita L.; Dello Russo, Neil; DiSanti, Michael (2019). "Detection of a Water Tracer in Interstellar Comet 2I/Borisov". arXiv:1910.12785v1 [astro-ph.EP]。
Bolin, Bryce T. (2019). "Evolving Coma Morphology of Interstellar Comet 2I/Borisov with Deep HST Imaging". arXiv:1912.07386v1 [astro-ph.EP]。
Sekanina, Zdenek (2019). "1I/'Oumuamua and the Problem of Survival of Oort Cloud Comets Near the Sun". arXiv:1903.06300v3 [astro-ph.EP]。
Hibberd, Adam; Perakis, Nikolaos; Hein, Andreas M. (2019). "Sending a Spacecraft to Interstellar Comet C/2019 Q4 (Borisov)". arXiv:1909.06348v1 [astro-ph.EP]。
de León, Julia; Licandro, Javier; Serra-Ricart, Miquel; Cabrera-Lavers, Antonio; Font Serra, Joan; Scarpa, Riccardo; de la Fuente Marcos, Carlos; de la Fuente Marcos, Raúl (2019). “Interstellar Visitors: A Physical Characterization of Comet C/2019 Q4 (Borisov) with OSIRIS at the 10.4 m GTC”. Research Notes of the AAS3 (9): 131. doi:10.3847/2515-5172/ab449c. ISSN2515-5172.
National Aeronautics and Space Administration (2019年10月16日). “Comet 2I/Borisov Compass Image”. Hubblesite. 2019年12月8日閲覧。 “C/2019 Q4 (Borisov); HST WFC3/UVIS F350LP; Oct. 12, 2019”
National Aeronautics and Space Administration (2019年10月16日). “Hubble Observes First Confirmed Interstellar Comet”. Hubblesite. 2019年12月8日閲覧。 “Hubble took a series of snapshots as the comet streaked along at 110,000 miles per hour. [...] The comet was 260 million miles from Earth when Hubble took the photo. [...] This Hubble image, taken on October 12, 2019 [...] reveals a central concentration of dust around the nucleus (which is too small to be seen by Hubble).”
de León, Julia; Licandro, Javier; Serra-Ricart, Miquel; Cabrera-Lavers, Antonio; Font Serra, Joan; Scarpa, Riccardo; de la Fuente Marcos, Carlos; de la Fuente Marcos, Raúl (2019). “Interstellar Visitors: A Physical Characterization of Comet C/2019 Q4 (Borisov) with OSIRIS at the 10.4 m GTC”. Research Notes of the AAS3 (9): 131. doi:10.3847/2515-5172/ab449c. ISSN2515-5172.