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On the extremely low polarization in Comet C/2023 P1 (Nishimura)

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Title
On the extremely low polarization in Comet C/2023 P1 (Nishimura)
Author(s)
Zheltobryukhov, Maxim; Zubko, Evgenij; Chornaya, Ekaterina; Kochergin, Anton; Hines, Dean C.; Videen, Gorden
Publication Date
2024-02
Journal
Monthly Notices of the Royal Astronomical Society: Letters, v.528, no.1, pp.L117 - L121
Publisher
Oxford University Press
Abstract
On September 6 and 7 of 2023, we measured the degree of linear polarization of Comet C/2023 P1 (Nishimura) with the R filter. Our observations reveal an extremely low amplitude of positive polarization. Our modelling suggests Mg-rich silicate dust particles are the dominant species in the coma; whereas, an alternative explanation is that such low positive polarization in comets is attributed to the depolarizing effect of their gaseous emission. These two alternative explanations predict dramatically different polarimetric responses at small phase angle that can be discriminated in future polarimetric observations of Comet C/2023 P1 (Nishimura). © 2023 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.
URI
https://pr.ibs.re.kr/handle/8788114/14872
DOI
10.1093/mnrasl/slad181
ISSN
1745-3933
Appears in Collections:
Pioneer Research Center for Climate and Earth Science(기후 및 지구과학 연구단) > Planetary Atmospheres Group(행성 대기 그룹) > 1. Journal Papers (저널논문)
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