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Low-albedo asteroids: analogues with a high polarization at large phase angles

Autor: E Hadamcik, J-B Renard, J Lasue, A C Levasseur-Regourd, M Ishiguro

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2023, 520, pp.1963-1974. ⟨10.1093/mnras/stac2749⟩
Monthly Notices of the Royal Astronomical Society, 2022, (in press). ⟨10.1093/mnras/stac2749⟩

While remote observations of the linear polarization of five low-albedo near-Earth asteroids are available at large phase angles, space missions have collected materials from the surface of two of them and one of them is already back to Earth. The st

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3bf9a7afe5b3657b3495d0c39a933ceb
https://doi.org/10.1093/mnras/stac2749

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Akademický článek

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Scattering of light by a large, densely packed agglomerate of small silica spheres

Autor: E. Hadamcik, Karri Muinonen, Jérémy Lasue, Jean-Baptiste Renard, Jürgen Blum, Timo Väisänen, Anny Chantal Levasseur-Regourd, Johannes Markkanen

Publikováno v: Optics Letters
Optics Letters, Optical Society of America-OSA Publishing, 2020, 45 (7), pp.1679. ⟨10.1364/OL.382240⟩
Optics Letters, Optical Society of America-OSA Publishing, 2020, 45 (7), pp.1679-1682. ⟨10.1364/OL.382240⟩
Optics Letters, 2020, 45 (7), pp.1679-1682. ⟨10.1364/OL.382240⟩

We model the measured phase function and degree of linear polarization of a macroscopic agglomerate made of micrometer-scale silica spheres using the methodology of multiple scattering. In the laboratory work, the agglomerate is produced ballisticall

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f17201640c7b60d9fe9034dc3f036abe
https://hal.archives-ouvertes.fr/hal-03017648

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Akademický článek

Linear polarization measurements with clouds of tholins produced by radio-frequency plasma

Autor: E. Hadamcik, J.-B. Renard, N. Carrasco, G. Cernogora, C. Szopa, J. Lasue

Publikováno v: Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, Vol 89, Iss S1, Pp C1V89S1P044-1 (2011)

The linear polarization of the light scattered by fluffy agglomerates of tholins produced by a RF plasma is correlated to the physical properties of the samples. The results are compared to space observations of Titan's aerosols.

Externí odkaz: https://doaj.org/article/ad311f207bcb4723a9fa5bc32cc252ed

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Photometry and colour index of Comet 67P/Churyumov-Gerasimenko on 2015 December 12

Autor: Jérémie Lasue, A. K. Sen, S. Roy Choudhury, E. Hadamcik, Ranjan Gupta, Robert Botet

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2019, 487 (4), pp.4809-4818. ⟨10.1093/mnras/stz1538⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2019, 487 (4), pp.4809-4818. ⟨10.1093/mnras/stz1538⟩

International audience; Comet 67P/Churyumov-Gerasimenko (hereafter, 67P) was observed on 12 December 2015, from 2 m Himalayan Chandra Telescope in India in photometry to study its dust properties, using Bessell R and I filters. We study the photometr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::61fddcd82d9c9d91a0751c2bb9412ce1
https://hal-insu.archives-ouvertes.fr/insu-02151608/document

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Interpretation through experimental simulations of phase functions revealed by Rosetta in 67P/Churyumov-Gerasimenko dust coma

Autor: Marco Fulle, Ivano Bertini, E. Hadamcik, Jérémie Lasue, Jean-Baptiste Renard, Anny Chantal Levasseur-Regourd

Publikováno v: Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2019, 630, A20 (6 p.). ⟨10.1051/0004-6361/201834894⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2019, 630, A20 (6 p.). ⟨10.1051/0004-6361/201834894⟩

Context.The dust-brightness phase curves that have been measured by the OSIRIS cameras on board the Rosetta spacecraft within the coma of comet 67P/Churyumov-Gerasimenko (67P) present a remarkable flattened u-shape.Aims.Our goal is to compare these p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d38adbfa24f29f98e25661f37bcdf6c
https://hal-insu.archives-ouvertes.fr/insu-02114611

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Akademický článek

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[Untitled]

Autor: J. B. Renard, E. Hadamcik, A. C. Levassuer-Regourd

Publikováno v: Earth, Moon, and Planets. 78:365-371

Polarimetric observations of the light scattered by dust have been carried out at Pic-du-Midi Observatory with the 2 m telescope in June and September–October 1996, and at Haute-Provence Observatory with the 0.80 m telescope in April 1997. They cov

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::16af1e85f85bf8ec0b2b6a7e5d780974
https://doi.org/10.1023/a:1006206613959

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Light Scattering as a Clue to Cometary Dust Structure

Autor: Jérémie Lasue, A. Chantal Levasseur-Regourd, E. Hadamcik

Publikováno v: Highlights of Astronomy. 13:498-500

The linear polarization of comets depends upon the cometary dust physical properties, as well as upon the phase angle and the wavelength. The observed similarities and discrepancies provide drastic constraints on the physical properties of the dust.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e79a293e7c8fb6bcfcd5258ce20aeef2
https://doi.org/10.1017/s1539299600016415

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