Characterization of the Nucleus, Morphology, and Activity of Interstellar Comet 2I/Borisov by Optical and Near-infrared GROWTH, Apache Point, IRTF, ZTF, and Keck Observations

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Fältnamn	Indikatorer	Metadata
000		04987naa a2200949 4500
001		oai:DiVA.org:su-183956
003		SwePub
008		200828s2020 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-1839562 URI
024	7	a https://doi.org/10.3847/1538-3881/ab93052 DOI
040		a (SwePub)su
041		a engb eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a art2 swepub-publicationtype
100	1	a Bolin, Bryce T.4 aut
245	1 0	a Characterization of the Nucleus, Morphology, and Activity of Interstellar Comet 2I/Borisov by Optical and Near-infrared GROWTH, Apache Point, IRTF, ZTF, and Keck Observations
264		c 2020-06-17
264	1	b American Astronomical Society,c 2020
338		a print2 rdacarrier
520		a We present visible and near-infrared (NIR) photometric and spectroscopic observations of interstellar object (ISO) 2I/Borisov taken from 2019 September 10 to 2019 December 20 using the GROWTH, the Apache Point Observatory Astrophysical Research Consortium 3.5 m, and the NASA Infrared Telescope Facility 3.0 m combined with pre- and postdiscovery observations of 2I obtained by the Zwicky Transient Facility from 2019 March 17 to 2019 May 5. Comparison with imaging of distant solar system comets shows an object very similar to mildly active solar system comets with an outgassing rate of similar to 10(27)mol s(-1). The photometry, taken in filters spanning the visible and NIR range, shows a gradual brightening trend of similar to 0.03 mag day(-1)since 2019 September 10 UTC for a reddish object becoming neutral in the NIR. The light curve from recent and prediscovery data reveals a brightness trend suggesting the recent onset of significant H2O sublimation with the comet being active with super volatiles such as CO at heliocentric distances >6 au consistent with its extended morphology. Using the advanced capability to significantly reduce the scattered light from the coma enabled by high-resolution NIR images from Keck adaptive optics taken on 2019 October 4, we estimate a diameter for 2I's nucleus of less than or similar to 1.4 km. We use the size estimates of 1I/'Oumuamua and 2I/Borisov to roughly estimate the slope of the ISO size distribution, resulting in a slope of similar to 3.4 1.2, similar to solar system comets and bodies produced from collisional equilibrium.
650	7	a NATURVETENSKAPx Fysik0 (SwePub)1032 hsv//swe
650	7	a NATURAL SCIENCESx Physical Sciences0 (SwePub)1032 hsv//eng
653		a Comets
653		a Minor planets
700	1	a Lisse, Carey M.4 aut
700	1	a Kasliwal, Mansi M.4 aut
700	1	a Quimby, Robert4 aut
700	1	a Tan, Hanjie4 aut
700	1	a Copperwheat, Chris M.4 aut
700	1	a Lin, Zhong-Yi4 aut
700	1	a Morbidelli, Alessandro4 aut
700	1	a Abe, Lyu4 aut
700	1	a Bendjoya, Philippe4 aut
700	1	a Burdge, Kevin B.4 aut
700	1	a Coughlin, Michael4 aut
700	1	a Fremling, Christoffer4 aut
700	1	a Itoh, Ryosuke4 aut
700	1	a Koss, Michael4 aut
700	1	a Masci, Frank J.4 aut
700	1	a Maeno, Syota4 aut
700	1	a Mamajek, Eric E.4 aut
700	1	a Marocco, Federico4 aut
700	1	a Murata, Katsuhiro4 aut
700	1	a Rivet, Jean-Pierre4 aut
700	1	a Sitko, Michael L.4 aut
700	1	a Stern, Daniel4 aut
700	1	a Vernet, David4 aut
700	1	a Walters, Richard4 aut
700	1	a Yan, Lin4 aut
700	1	a Andreoni, Igor4 aut
700	1	a Bhalerao, Varun4 aut
700	1	a Bodewits, Dennis4 aut
700	1	a De, Kishalay4 aut
700	1	a Deshmukh, Kunal P.4 aut
700	1	a Bellm, Eric C.4 aut
700	1	a Blagorodnova, Nadejda4 aut
700	1	a Buzasi, Derek4 aut
700	1	a Cenko, S. Bradley4 aut
700	1	a Chang, Chan-Kao4 aut
700	1	a Chojnowski, Drew4 aut
700	1	a Dekany, Richard4 aut
700	1	a Duev, Dmitry A.4 aut
700	1	a Graham, Matthew4 aut
700	1	a Juric, Mario4 aut
700	1	a Kulkarni, Shrinivas R.4 aut
700	1	a Kupfer, Thomas4 aut
700	1	a Mahabal, Ashish4 aut
700	1	a Neill, James D.4 aut
700	1	a Ngeow, Chow-Choong4 aut
700	1	a Penprase, Bryan4 aut
700	1	a Riddle, Reed4 aut
700	1	a Rodriguez, Hector4 aut
700	1	a Smith, Roger M.4 aut
700	1	a Rosnet, Philippe4 aut
700	1	a Sollerman, Jesperu Stockholms universitet,Institutionen för astronomi4 aut0 (Swepub:su)solle
700	1	a Soumagnac, Maayane T.4 aut
710	2	a Stockholms universitetb Institutionen för astronomi4 org
773	0	t Astronomical Journald : American Astronomical Societyg 160:1q 160:1x 0004-6256x 1538-3881
856	4	u https://authors.library.caltech.edu/99959/2/Bolin_2020_AJ_160_26.pdf
856	4 8	u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-183956
856	4 8	u https://doi.org/10.3847/1538-3881/ab9305

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Av författaren/redakt...: Bolin, Bryce T.; Lisse, Carey M.; Kasliwal, Mansi ...; Quimby, Robert; Tan, Hanjie; Copperwheat, Chr ...; visa fler...; Lin, Zhong-Yi; Morbidelli, Ales ...; Abe, Lyu; Bendjoya, Philip ...; Burdge, Kevin B.; Coughlin, Michae ...; Fremling, Christ ...; Itoh, Ryosuke; Koss, Michael; Masci, Frank J.; Maeno, Syota; Mamajek, Eric E.; Marocco, Federic ...; Murata, Katsuhir ...; Rivet, Jean-Pier ...; Sitko, Michael L ...; Stern, Daniel; Vernet, David; Walters, Richard; Yan, Lin; Andreoni, Igor; Bhalerao, Varun; Bodewits, Dennis; De, Kishalay; Deshmukh, Kunal ...; Bellm, Eric C.; Blagorodnova, Na ...; Buzasi, Derek; Cenko, S. Bradle ...; Chang, Chan-Kao; Chojnowski, Drew; Dekany, Richard; Duev, Dmitry A.; Graham, Matthew; Juric, Mario; Kulkarni, Shrini ...; Kupfer, Thomas; Mahabal, Ashish; Neill, James D.; Ngeow, Chow-Choo ...; Penprase, Bryan; Riddle, Reed; Rodriguez, Hecto ...; Smith, Roger M.; Rosnet, Philippe; Sollerman, Jespe ...; Soumagnac, Maaya ...; visa färre...

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