INTERPRETATION OF POLARIMETRIC OBSERVATIONS OF HYPERBOLIC COMETS
Authors:
1.
Crimean Astrophysical Observatory of the Russian Academy of Sciences
2.
Crimean Astrophysical Observatory of the Russian Academy of Sciences
3.
Crimean Astrophysical Observatory of the Russian Academy of Sciences
Institute of Astronomy of the Russian Academy of Sciences
Institute of Astronomy of the Russian Academy of Sciences
Type:
Сonference article
Published:
27.12.2024
Subject area:
UDC 52
UDC 53
UDC 520
UDC 521
UDC 523
UDC 524
UDC 52-1
UDC 52-6
CSCSTI 41.00
CSCSTI 29.35
CSCSTI 29.31
CSCSTI 29.33
CSCSTI 29.27
CSCSTI 29.05
Russian Classification of Professions by Education 03.06.01
Russian Classification of Professions by Education 03.05.01
Russian Classification of Professions by Education 03.04.03
Russian Library and Bibliographic Classification 2
Russian Library and Bibliographic Classification 223
Russian Trade and Bibliographic Classification 614
Russian Trade and Bibliographic Classification 6135
BISAK SCI004000 Astronomy
BISAK SCI005000 Physics / Astrophysics
UDC 53
UDC 520
UDC 521
UDC 523
UDC 524
UDC 52-1
UDC 52-6
CSCSTI 41.00
CSCSTI 29.35
CSCSTI 29.31
CSCSTI 29.33
CSCSTI 29.27
CSCSTI 29.05
Russian Classification of Professions by Education 03.06.01
Russian Classification of Professions by Education 03.05.01
Russian Classification of Professions by Education 03.04.03
Russian Library and Bibliographic Classification 2
Russian Library and Bibliographic Classification 223
Russian Trade and Bibliographic Classification 614
Russian Trade and Bibliographic Classification 6135
BISAK SCI004000 Astronomy
BISAK SCI005000 Physics / Astrophysics
Language:
English
Keywords:
comets: polarimetry; computer simulation
Abstract (English):
Polarimetric observations of comet C/2013 X1 (PANSTARRS) were compared with polarimetric data taken from the Polarimetric Comet Observations Database. To obtain a synthetic phase dependence of the degree of linear polarization of hyperbolic comets, the data were interpreted using computer simulations. In this case, computer simulation means calculating the characteristics of light scattered by particles of irregular shape and a certain chemical composition. Simulations showed that the dust ball would have to be 74 % amorphous carbon, 25 % magnesium-rich silicates, and 1 % water ice to reproduce the observed linear polarization values.
Polarimetric observations of comet C/2013 X1 (PANSTARRS) were compared with polarimetric data taken from the Polarimetric Comet Observations Database. To obtain a synthetic phase dependence of the degree of linear polarization of hyperbolic comets, the data were interpreted using computer simulations. In this case, computer simulation means calculating the characteristics of light scattered by particles of irregular shape and a certain chemical composition. Simulations showed that the dust ball would have to be 74 % amorphous carbon, 25 % magnesium-rich silicates, and 1 % water ice to reproduce the observed linear polarization values.
Keywords:
comets: polarimetry; computer simulation
comets: polarimetry; computer simulation
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