Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Ph. Lamy"'
Autor:
Ph. Lamy, M. F. Jousselme
Publikováno v:
Interplanetary Dust and Zodiacal Light ISBN: 9783540076155
An improved solution of the temperature distribution of interplanetary ice grains is presented using the refractive index measured at 100° K. The efficiency factors for absorption are obtained from Mie theory and the calculation is carried out for m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27192622ac08cc4870bdc2f38921e372
https://doi.org/10.1007/3-540-07615-8_522
https://doi.org/10.1007/3-540-07615-8_522
Autor:
Ph. Lamy, M.F. Jousselme
Publikováno v:
International Astronomical Union Colloquium. 31:443-447
An improved solution of the temperature distribution of interplanetary ice grains is presented using the refractive index measured at 100° K. The efficiency factors for absorption are obtained from Mie theory and the calculation is carried out for m
Publikováno v:
Bulletin du Groupe français des argiles. 27:139-152
The diaclases of the granite massif with two micas of Crevant (Indre) are filled up by an argillaceous material with talc feel, very rich in fine-grained fractions, 70 % of clay particles being comprised between 0 and 20 µ. This material is composed
Publikováno v:
International Astronomical Union Colloquium. 85:85-88
At the Pic-du-Midi Observatory, we have started a program to observe the spectrum of the zodiacal light in the region of the b absorption lines of MgI. We use a 1 meter spectrograph with a holographic grating followed by a focal reducer to obtain a 1
Autor:
Ph. Lamy
Publikováno v:
International Astronomical Union Colloquium. 31:437-442
The orbital evolution of circum-solar dust grains is obtained by numerical integration of the equations of motion which includes the grains’ interactions with the solar radiation field and the solar wind. Our past solution (Lamy, 1974) is improved
Publikováno v:
Properties and Interactions of Interplanetary Dust ISBN: 9789401089128
At the Pic-du-Midi Observatory, we have started a program to observe the spectrum of the zodiacal light in the region of the b absorption lines of MgI. We use a 1 meter spectrograph with a holographic grating followed by a focal reducer to obtain a 1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf7f103433ca1f5157486940e0c619c9
https://doi.org/10.1007/978-94-009-5464-9_18
https://doi.org/10.1007/978-94-009-5464-9_18
Publikováno v:
Instrumentation for Astronomy with Large Optical Telescopes ISBN: 9789400977891
The study and efficiency test of the optics of the Space Telescope Faint Object Camera carried out at the Laboratoire d’Astronomie Spatiale, led the authors to design a similar coronographic mode for large ground based telescopes. Adaptation of thi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b94b0c44997470d20c6d0d85c511704c
https://doi.org/10.1007/978-94-009-7787-7_10
https://doi.org/10.1007/978-94-009-7787-7_10
Autor:
Ph. Lamy, S. Koutchmy
Publikováno v:
International Astronomical Union Colloquium. 31:343-344
As Part of our Program of observation of comet Kohoutek at Pic-du-Midi Observatory, we obtained, on January 17.8 UT, 1974 a Photograph in polarized light showing dramatically the (dust) anti-tail extending for almost 1° from the Comet’s head (repo
Autor:
Serge Koutchmy, Ph Lamy
Publikováno v:
Journal of Optics. 10:331-332
The first observations of speckled images of alpha -Orionis as obtained at the Cassegrain focus of the 193-cm telescope of the Haute Provence Observatory using an IR-TV camera are presented. The specific nature of the 2 mu m images is outlined.
Conference
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