A Technique for Simultaneous Measurement of Circular and Linear Polarization With a Single-Channel Polarimeter

Колесников, С. В.; Breus, V. V.; Kiselev, N. N.; Андронов, И. Л.

doi:10.18524/1810-4215.2016.29.85015

Cited by 5 publications

(5 citation statements)

References 5 publications

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“…On December 8−13, 2017, a five-color UBVRI photopolarimeter (Piirola, 1988) of the 1.25-m AZT-11 telescope and a single-channel photometer-polarimeter of the 2.6-m Shajn telescope of the CrAO (Shakhovskoy & Efimov 1972;Kolesnikov et al 2016) were used for the measurements of linear polarization of asteroid Phaethon at phase angles 19−62.…”

Section: Aperture Polarimetry and Photometrymentioning

confidence: 99%

Asteroid (3200) Phaethon: results of polarimetric, photometric, and spectral observations

Kiselev

Rosenbush

Петров

et al. 2022

Monthly Notices of the Royal Astronomical Society

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We present results of polarimetric, photometric, and spectral observations of the near-Earth asteroid (3200) Phaethon carried out at the 6-m BTA telescope of the Special Astrophysical Observatory and the 2.6-m and 1.25-m telescopes of the Crimean Astrophysical Observatory over a wide range of phase angles during its close approach to the Earth at the end of 2017 (α = 19° – 135°) and in 2020 at α = 52.2°. Using our and other available in literature data, we found that the maximum degree of linear polarization of Phaethon in the V band is Pmax = (45 ± 1)% at the phase angle αmax = 124.0° ± 0.4°, whereas the inversion angle αinv = 21.4° ± 1.2° and polarimetric slope is h = (0.326 ± 0.027) %/deg. Using the dependence “polarimetric slope – albedo,” we have found the geometric albedo of asteroid Phaethon to be pv = 0.060 ± 0.005. This value falls into the lower range of albedo values for asteroids determined by different methods. The mean color indices U–B = 0.207 m ± 0.053 m and B–V = 0.639 m ± 0.054 m of the asteroid are derived at heliocentric and geocentric distances 1.077 au and 0.102 au, respectively, and phase angle α = 23.78°. The absolute magnitude of Phaethon is V(1,1,0) = 14.505 m ± 0.059 m. The effective diameter of Phaethon is estimated from obtained absolute magnitude and geometrical albedo, it is equal to 6.8 ± 0.3 km. The best fit to the observed polarimetric data was obtained with the Sh-matrix model of conjugated random Gaussian particles composed of Mg-rich silicate (90%) and amorphous carbon (10%).

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Section: Aperture Polarimetry and Photometrymentioning

confidence: 99%

Asteroid (3200) Phaethon: results of polarimetric, photometric, and spectral observations

Kiselev

Rosenbush

Петров

et al. 2022

Monthly Notices of the Royal Astronomical Society

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“…Пiд час спостережень до 2000 р. використовували офсетний гiд з корисним полем 10 × 10 для вiзуального гiдування пiд час вимiрювань по сусiднiй зорi у видимостi телескопа. Оскiльки спостереження в такому режимi трива-4901-5 ли до 2002 року, коротко викладемо їхню методику, повнiше вона описана в працях [20], доповнення у [21].…”

Section: B програмне забезпеченняunclassified

“…Кут ψ для кожного ряду спостережень визначається за значеннями P 1 i P 2 методом ортогональної реґресiї див. [21] i далi.…”

Section: B програмне забезпеченняunclassified

Development of equipment and techniques of the polarimetric method as an effective method of astrophysical research. ii. description and development of the aperture polarimetry at crao. equipment and software

Колесников¹

2019

J. Phys. Stud.

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“…For analysis of the raw photopolarimetric observations obtained using the 2.6m Shain telescope of the Crimean astrophysical observatory, the software "PolarObs" was developed (Breus et al (2007), Kolesnikov et al (2016)), which was used not only for observations of cataclysmic binaries (Andronov (2007a)), but also asteroids and comets (Kolokolova et al (2012)).…”

Section: Software For Processing Astronomical Observations Of Variabl...mentioning

confidence: 99%

Instabilities in Interacting Binary Stars

Andronov,

Andrych,

Antoniuk

et al. 2017

Preprint

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developed to create a set of complementary software for statistically optimal modeling of variable stars of different types."Why carry out the monitoring? Imagine that You made a photo of a falling stone. Only one photo. Then somebody looks at this photo and thinks: "Wow! The stone is flying? Anti-gravitation? A thin wire?" So, to make physically correct models, You should know the dynamics of the object! So, take a small telescope (nobody will allow You to use a large one for a long time) and observe! As long as possible! And You will catch Your Discovery!

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A Technique for Simultaneous Measurement of Circular and Linear Polarization With a Single-Channel Polarimeter

Cited by 5 publications

References 5 publications

Asteroid (3200) Phaethon: results of polarimetric, photometric, and spectral observations

Asteroid (3200) Phaethon: results of polarimetric, photometric, and spectral observations

Development of equipment and techniques of the polarimetric method as an effective method of astrophysical research. ii. description and development of the aperture polarimetry at crao. equipment and software

Instabilities in Interacting Binary Stars

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