{"id":"https://openalex.org/W4296828035","doi":"https://doi.org/10.5194/epsc2022-1111","title":"Unusual polarimetric properties for interstellar comet 2I/Borisov","display_name":"Unusual polarimetric properties for interstellar comet 2I/Borisov","publication_year":2022,"publication_date":"2022-09-23","ids":{"openalex":"https://openalex.org/W4296828035","doi":"https://doi.org/10.5194/epsc2022-1111"},"language":"en","primary_location":{"id":"doi:10.5194/epsc2022-1111","doi":"https://doi.org/10.5194/epsc2022-1111","is_oa":true,"landing_page_url":"https://doi.org/10.5194/epsc2022-1111","pdf_url":null,"source":null,"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"posted-content"},"volume":null,"type":"conference-abstract","is_traditional":false,"indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://doi.org/10.5194/epsc2022-1111","any_repository_has_fulltext":null},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5031474913","display_name":"S. Bagnulo","orcid":"https://orcid.org/0000-0002-7156-8029","observed_orcids":["https://orcid.org/0000-0002-7156-8029"]},"institutions":[{"id":"https://openalex.org/I2799845800","display_name":"Armagh Observatory & Planetarium","ror":"https://ror.org/04vhk9f59","country_code":"GB","type":"facility","lineage":["https://openalex.org/I2799845800"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Stefano Bagnulo","raw_affiliation_strings":["Armagh Observatory and Planetarium, Armagh, United Kingdom"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Armagh Observatory and Planetarium, Armagh, United Kingdom","institution_ids":["https://openalex.org/I2799845800"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5026654184","display_name":"A. Cellino","orcid":"https://orcid.org/0000-0002-6645-334X","observed_orcids":["https://orcid.org/0000-0002-6645-334X"]},"institutions":[{"id":"https://openalex.org/I4210105504","display_name":"Osservatorio Astrofisico di Torino","ror":"https://ror.org/00yrf4e35","country_code":"IT","type":"facility","lineage":["https://openalex.org/I4210105504","https://openalex.org/I875825670"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Alberto Cellino","raw_affiliation_strings":["INAF \u2013 Osservatorio Astrofisico di Torino, Pino Torinese, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"INAF \u2013 Osservatorio Astrofisico di Torino, Pino Torinese, Italy","institution_ids":["https://openalex.org/I4210105504"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5086110842","display_name":"Ludmilla Kolokolova","orcid":"https://orcid.org/0000-0002-9321-3202","observed_orcids":["https://orcid.org/0000-0002-9321-3202"]},"institutions":[{"id":"https://openalex.org/I66946132","display_name":"University of Maryland, College Park","ror":"https://ror.org/047s2c258","country_code":"US","type":"education","lineage":["https://openalex.org/I66946132"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Ludmilla Kolokolova","raw_affiliation_strings":["Department of Astronomy, University of Maryland, College Park, MD, USA"],"raw_orcid":"https://orcid.org/0000-0002-9321-3202","affiliations":[{"raw_affiliation_string":"Department of Astronomy, University of Maryland, College Park, MD, USA","institution_ids":["https://openalex.org/I66946132"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5027446489","display_name":"Rok Ne\u017ei\u0107","orcid":"https://orcid.org/0000-0001-5992-5612","observed_orcids":["https://orcid.org/0000-0001-5992-5612"]},"institutions":[{"id":"https://openalex.org/I2799845800","display_name":"Armagh Observatory & Planetarium","ror":"https://ror.org/04vhk9f59","country_code":"GB","type":"facility","lineage":["https://openalex.org/I2799845800"]},{"id":"https://openalex.org/I45129253","display_name":"University College London","ror":"https://ror.org/02jx3x895","country_code":"GB","type":"education","lineage":["https://openalex.org/I124357947","https://openalex.org/I45129253"]},{"id":"https://openalex.org/I98259816","display_name":"Birkbeck, University of London","ror":"https://ror.org/02mb95055","country_code":"GB","type":"education","lineage":["https://openalex.org/I124357947","https://openalex.org/I98259816"]}],"countries":["GB"],"is_corresponding":true,"raw_author_name":"Rok Ne\u017ei\u010d","raw_affiliation_strings":["Armagh Observatory and Planetarium, Armagh, United Kingdom","Centre for Planetary Sciences, University College London/Birkbeck, London, UK (Rok.Nezic@Armagh.ac.uk)","Mullard Space Science Laboratory, Department of Space & Climate Physics, University College London, Dorking, Surrey, UK"],"raw_orcid":"https://orcid.org/0000-0001-5992-5612","affiliations":[{"raw_affiliation_string":"Armagh Observatory and Planetarium, Armagh, United Kingdom","institution_ids":["https://openalex.org/I2799845800"]},{"raw_affiliation_string":"Centre for Planetary Sciences, University College London/Birkbeck, London, UK (Rok.Nezic@Armagh.ac.uk)","institution_ids":["https://openalex.org/I45129253","https://openalex.org/I98259816"]},{"raw_affiliation_string":"Mullard Space Science Laboratory, Department of Space & Climate Physics, University College London, Dorking, Surrey, UK","institution_ids":["https://openalex.org/I45129253"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5027651847","display_name":"T. Santana-Ros","orcid":"https://orcid.org/0000-0002-0143-9440","observed_orcids":["https://orcid.org/0000-0002-0143-9440"]},"institutions":[{"id":"https://openalex.org/I130194489","display_name":"University of Alicante","ror":"https://ror.org/05t8bcz72","country_code":"ES","type":"education","lineage":["https://openalex.org/I130194489"]},{"id":"https://openalex.org/I4392021189","display_name":"Institut de Ci\u00e8ncies del Cosmos","ror":"https://ror.org/044fgj614","country_code":"ES","type":"education","lineage":["https://openalex.org/I4392021189","https://openalex.org/I71999127"]},{"id":"https://openalex.org/I71999127","display_name":"Universitat de Barcelona","ror":"https://ror.org/021018s57","country_code":"ES","type":"education","lineage":["https://openalex.org/I71999127"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Toni Santana-Ros","raw_affiliation_strings":["Departamento de Fisica, Ingenier\u00eda de Sistemas y Teor\u00eda de la Se\u00f1al, Universidad de Alicante, Alicante, Spain","Institut de Ci\u00e8ncies del Cosmos (ICCUB), Universitat de Barcelona (IEEC-UB), Barcelona, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Departamento de Fisica, Ingenier\u00eda de Sistemas y Teor\u00eda de la Se\u00f1al, Universidad de Alicante, Alicante, Spain","institution_ids":["https://openalex.org/I130194489"]},{"raw_affiliation_string":"Institut de Ci\u00e8ncies del Cosmos (ICCUB), Universitat de Barcelona (IEEC-UB), Barcelona, Spain","institution_ids":["https://openalex.org/I4392021189","https://openalex.org/I71999127"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5065112667","display_name":"G. Borisov","orcid":"https://orcid.org/0000-0002-4516-459X","observed_orcids":["https://orcid.org/0000-0002-4516-459X"]},"institutions":[{"id":"https://openalex.org/I24768866","display_name":"Bulgarian Academy of Sciences","ror":"https://ror.org/01x8hew03","country_code":"BG","type":"government","lineage":["https://openalex.org/I24768866"]},{"id":"https://openalex.org/I2799845800","display_name":"Armagh Observatory & Planetarium","ror":"https://ror.org/04vhk9f59","country_code":"GB","type":"facility","lineage":["https://openalex.org/I2799845800"]},{"id":"https://openalex.org/I4210120893","display_name":"Institute of Astronomy and National Astronomical Observatory","ror":"https://ror.org/02s2qpg90","country_code":"BG","type":"facility","lineage":["https://openalex.org/I4210120893"]}],"countries":["BG","GB"],"is_corresponding":true,"raw_author_name":"Galin Borisov","raw_affiliation_strings":["Armagh Observatory and Planetarium, Armagh, United Kingdom","Institute of Astronomy and National Astronomical Observatory, Bulgarian Academy of Sciences, Sofia, Bulgaria"],"raw_orcid":"https://orcid.org/0000-0002-4516-459X","affiliations":[{"raw_affiliation_string":"Armagh Observatory and Planetarium, Armagh, United Kingdom","institution_ids":["https://openalex.org/I2799845800"]},{"raw_affiliation_string":"Institute of Astronomy and National Astronomical Observatory, Bulgarian Academy of Sciences, Sofia, Bulgaria","institution_ids":["https://openalex.org/I24768866","https://openalex.org/I4210120893"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5072284802","display_name":"Apostolos A. Christou","orcid":"https://orcid.org/0000-0002-3941-6586","observed_orcids":["https://orcid.org/0000-0002-3941-6586"]},"institutions":[{"id":"https://openalex.org/I2799845800","display_name":"Armagh Observatory & Planetarium","ror":"https://ror.org/04vhk9f59","country_code":"GB","type":"facility","lineage":["https://openalex.org/I2799845800"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Apostolos Christou","raw_affiliation_strings":["Armagh Observatory and Planetarium, Armagh, United Kingdom"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Armagh Observatory and Planetarium, Armagh, United Kingdom","institution_ids":["https://openalex.org/I2799845800"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5088868246","display_name":"Philippe Bendjoya","orcid":"https://orcid.org/0000-0002-4278-1437","observed_orcids":["https://orcid.org/0000-0002-4278-1437"]},"institutions":[{"id":"https://openalex.org/I1294671590","display_name":"Centre National de la Recherche Scientifique","ror":"https://ror.org/02feahw73","country_code":"FR","type":"government","lineage":["https://openalex.org/I1294671590"]},{"id":"https://openalex.org/I201841394","display_name":"Universit\u00e9 C\u00f4te d'Azur","ror":"https://ror.org/019tgvf94","country_code":"FR","type":"education","lineage":["https://openalex.org/I201841394"]},{"id":"https://openalex.org/I4210113427","display_name":"Lagrange Laboratory","ror":"https://ror.org/02fdv8735","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I201841394","https://openalex.org/I4210113427","https://openalex.org/I4210126779","https://openalex.org/I4210148025"]},{"id":"https://openalex.org/I4210126779","display_name":"Observatoire de la C\u00f4te d\u2019Azur","ror":"https://ror.org/039fj2469","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I201841394","https://openalex.org/I4210126779"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Philippe Bendjoya","raw_affiliation_strings":["Universit\u00e9 C\u00f4te d\u2019Azur, Observatoire de la C\u00f4te d\u2019Azur, CNRS, Laboratoire Lagrange, Nice, France"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Universit\u00e9 C\u00f4te d\u2019Azur, Observatoire de la C\u00f4te d\u2019Azur, CNRS, Laboratoire Lagrange, Nice, France","institution_ids":["https://openalex.org/I1294671590","https://openalex.org/I201841394","https://openalex.org/I4210113427","https://openalex.org/I4210126779"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5060121789","display_name":"Maxime Devog\u00e8le","orcid":"https://orcid.org/0000-0002-6509-6360","observed_orcids":["https://orcid.org/0000-0002-6509-6360"]},"institutions":[{"id":"https://openalex.org/I106165777","display_name":"University of Central Florida","ror":"https://ror.org/036nfer12","country_code":"US","type":"education","lineage":["https://openalex.org/I106165777"]},{"id":"https://openalex.org/I2802780565","display_name":"Arecibo Observatory","ror":"https://ror.org/04qskqr65","country_code":"PR","type":"archive","lineage":["https://openalex.org/I2802780565"]}],"countries":["PR","US"],"is_corresponding":false,"raw_author_name":"Maxime Devog\u00e8le","raw_affiliation_strings":["Arecibo Observatory, University of Central Florida, Arecibo, PR, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Arecibo Observatory, University of Central Florida, Arecibo, PR, USA","institution_ids":["https://openalex.org/I106165777","https://openalex.org/I2802780565"]}]}],"institutions":[],"countries_distinct_count":7,"institutions_distinct_count":16,"corresponding_author_ids":["https://openalex.org/A5027446489","https://openalex.org/A5065112667","https://openalex.org/A5086110842"],"corresponding_institution_ids":["https://openalex.org/I24768866","https://openalex.org/I2799845800","https://openalex.org/I4210120893","https://openalex.org/I45129253","https://openalex.org/I66946132","https://openalex.org/I98259816"],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10325","display_name":"Astro and Planetary Science","score":0.9984999895095825,"subfield":{"id":"https://openalex.org/subfields/1912","display_name":"Space and Planetary Science"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10325","display_name":"Astro and Planetary Science","score":0.9984999895095825,"subfield":{"id":"https://openalex.org/subfields/1912","display_name":"Space and Planetary Science"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10477","display_name":"Astrophysics and Star Formation Studies","score":0.0003000000142492354,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10039","display_name":"Stellar, planetary, and galactic studies","score":0.0003000000142492354,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/2i-borisov","display_name":"2I/Borisov","score":0.9890000224113464},{"id":"https://openalex.org/keywords/interstellar-comets","display_name":"interstellar comets","score":0.9850000143051147},{"id":"https://openalex.org/keywords/polarimetry","display_name":"polarimetry","score":0.9160000085830688},{"id":"https://openalex.org/keywords/dust-particle-size","display_name":"dust particle size","score":0.42399999499320984},{"id":"https://openalex.org/keywords/polarization","display_name":"polarization","score":0.4729999899864197},{"id":"https://openalex.org/keywords/hale-bopp","display_name":"Hale-Bopp","score":0.8029999732971191},{"id":"https://openalex.org/keywords/interstellar-objects","display_name":"interstellar objects","score":0.5690000057220459},{"id":"https://openalex.org/keywords/cometary-activity","display_name":"cometary activity","score":0.4009999930858612}],"concepts":[{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.6115559935569763},{"id":"https://openalex.org/C94081185","wikidata":"https://www.wikidata.org/wiki/Q3559","display_name":"Comet","level":2,"score":0.5209773182868958},{"id":"https://openalex.org/C44870925","wikidata":"https://www.wikidata.org/wiki/Q37547","display_name":"Astrophysics","level":1,"score":0.28598910570144653}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.5194/epsc2022-1111","doi":"https://doi.org/10.5194/epsc2022-1111","is_oa":true,"landing_page_url":"https://doi.org/10.5194/epsc2022-1111","pdf_url":null,"source":null,"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"posted-content"}],"best_oa_location":{"id":"doi:10.5194/epsc2022-1111","doi":"https://doi.org/10.5194/epsc2022-1111","is_oa":true,"landing_page_url":"https://doi.org/10.5194/epsc2022-1111","pdf_url":null,"source":null,"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"posted-content"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W3173462378","https://openalex.org/W2979730262","https://openalex.org/W3102825683","https://openalex.org/W2996069935","https://openalex.org/W7007815616","https://openalex.org/W3101525444","https://openalex.org/W4409124870","https://openalex.org/W3103131940","https://openalex.org/W2973103610","https://openalex.org/W4392019571"],"abstract_inverted_index":{"Introduction":[0],"Only":[1],"two":[2],"interstellar":[3,67,101,177,242],"objects":[4],"have":[5,222],"been":[6],"observed":[7,197,263],"passing":[8],"through":[9],"our":[10,185,266],"Solar":[11,171,186,198,268],"System":[12,172,199],"to":[13,52,81,145,221,281],"date.":[14],"The":[15],"first":[16,65],"one,":[17],"1I/\u2018Oumuamua,":[18],"discovered":[19],"in":[20,22,49,56,139,143,184,231],"2017":[21],"its":[23,47,53,229,282],"post-perihelion":[24],"phase,":[25],"showed":[26,40],"mostly":[27],"asteroidal":[28],"characteristics":[29,149],"with":[30,105,209,251],"some":[31],"potential":[32],"evidence":[33,42,189],"of":[34,43,58,96,99,123,150,162,190],"comet-like":[35],"behaviour,":[36],"but":[37],"2I/Borisov":[38,103,163,191,244],"has":[39,276],"clear":[41],"comet":[44,102,178,208,243],"activity":[45],"since":[46],"discovery":[48],"2019,":[50],"prior":[51],"perihelion":[54],"passage":[55],"December":[57,129],"that":[59,160,206,274],"year.":[60],"This":[61,174,188],"made":[62],"it":[63,256,275],"the":[64,79,85,94,100,106,111,140,147,151,176,196,204,207,210,224,262],"confirmed":[66],"comet,":[68],"so":[69],"naturally":[70],"many":[71,239],"different":[72,136],"observations":[73,98,125],"were":[74],"conducted":[75,104],"by":[76,203],"astronomers":[77],"around":[78],"world":[80],"learn":[82],"more":[83,193,259],"about":[84],"peculiar":[86],"object.":[87],"Methodology":[88],"In":[89],"this":[90],"work":[91],"we":[92],"present":[93],"analysis":[95],"polarimetric":[97,124,212],"FORS2":[107],"instrument":[108],"located":[109],"on":[110],"European":[112],"Southern":[113],"Observatory's":[114],"Very":[115],"Large":[116],"Telescope":[117],"Unit":[118],"1":[119],"(Antu).":[120],"A":[121],"series":[122],"was":[126],"performed":[127],"between":[128],"2019":[130],"and":[131,234,238],"March":[132],"2020":[133],"using":[134],"three":[135],"broadband":[137],"filters":[138],"visible":[141],"regime":[142],"order":[144],"ascertain":[146],"physical":[148],"coma":[152],"dust":[153],"particles.":[154],"Results":[155],"&":[156],"Conclusions":[157],"We":[158],"find":[159],"polarisation":[161],"is":[164,167,201,214,219,257,271],"higher":[165],"than":[166,195,261],"usually":[168],"measured":[169],"for":[170],"comets.":[173],"distinguishes":[175],"from":[179,265],"all":[180],"dynamically":[181],"evolved":[182],"comets":[183,200,264],"System.":[187,269],"being":[192],"pristine":[194,260],"corroborated":[202],"fact":[205],"closest":[211],"properties":[213],"C/1995":[215],"O1":[216],"(Hale\u2013Bopp),":[217],"which":[218],"believed":[220],"approached":[223],"Sun":[225],"only":[226],"once":[227],"before":[228],"apparition":[230],"1997.":[232],"Furthermore,":[233],"unlike":[235],"both":[236],"Hale\u2013Bopp":[237],"other":[240],"comets,":[241],"shows":[245],"a":[246],"polarimetrically":[247],"homogeneous":[248],"coma,":[249],"unchanging":[250],"cometocentric":[252],"distance,":[253],"again":[254],"suggesting":[255],"even":[258],"own":[267],"It":[270],"thus":[272],"likely":[273],"never":[277],"passed":[278],"very":[279],"close":[280],"native":[283],"star.":[284]},"counts_by_year":[],"updated_date":"2026-11-09T13:22:03.289127","created_date":"2022-09-24T00:00:00"}