Autor:	Ingolf Heinrichsen, Ch. Leinert, Eberhard Grün, Roger F. Knacke, Hermann Böhnhardt, John C. Zarnecki, S. B. Peschke, David J. Osip, Humberto Campins, Dietrich Lemke, Manfred Stickel, Carey M. Lisse, Martha S. Hanner, Mark V. Sykes
Rok vydání:	1997
Předmět:	Physics Infrared Comet Flux Astronomy Astronomy and Astrophysics Coma (optics) Astrophysics Photometer Comet Hale–Bopp law.invention Photometry (optics) Space and Planetary Science law Earth and Planetary Sciences (miscellaneous) Spectral energy distribution
Zdroj:	Earth, Moon, and Planets. 78:299-304
ISSN:	0167-9295
DOI:	10.1023/a:1006281923528
Popis:	Comet Hale-Bopp has been observed five times with ISOPHOT, the photometer on board the Infrared Space Observatory (ISO), four times before its perihelion passage at heliocentric distances of 4.92, 4.58, 2.93 and 2.81 AU, and at 3.91 AU postperihelion. Each time, multi-filter photometry covering the range between 3.6–175 μm with eight to ten filters was performed to sample the spectral energy distribution of the comet. These measurements were used to determine dust temperatures for the cometary coma. The evolution of the strength of the silicate feature can be followed in the data as well as the flux deficit at longer wavelengths.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::dbe172f9a5aea51b627836751fb79689 https://doi.org/10.1023/a:1006281923528 Zobrazit plný text záznamu Full text from SpringerLink