From Interstellar Matter To Comets: A Laboratory View
نویسندگان
چکیده
منابع مشابه
From Interstellar Dust to Comets: Infrared Emission from Comet Hale-bopp (c/1995 O1)
The 3–20 mm IR thermal emission spectrum of comet Hale-Bopp (C/1995 O1) at a heliocentric distance of AU has been calculated using fluffy aggregates of silicate core–organic refractory mantle interstellar r 5 1.15 h dust as the comet dust model. The principal dust properties, similar to those obtained for other comets, provide good fits to the observation. Our results are significantly differen...
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This contribution addresses the different approaches that are developed in our laboratory to study the chemical evolution of organic matter in stellar or interplanetary environments. In the first approach, starting from interstellar or cometary ice analogs subjected to different energy processes (thermal, photochemical), we aim to explain the mechanism of formation of key molecules (RING projec...
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– 2 – We have obtained EUV spectra between 90 and 255Å of the comets C/2002 T7 (LINEAR), C/2001 Q4 (NEAT), and C/2004 Q2 (Machholz) near their perihelion passages in 2004 with the Cosmic Hot Interstellar Plasma Spectrometer (CHIPS). We obtained contemporaneous data on Comet NEAT Q4 with the Chandra X-ray Observatory ACIS instrument, marking the first simultaneous EUV and X-ray spectral observat...
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We have obtained EUV spectra between 90 and 255 8 of the comets C/2002 T7 (LINEAR), C/2001 Q4 (NEAT), and C/2004 Q2 (Machholz) near their perihelion passages in 2004 with the Cosmic Hot Interstellar Plasma Spectrometer (CHIPS). We obtained contemporaneous data on NEAT with the Chandra ACIS instrument, marking the first simultaneous EUVandX-ray spectral observations of a comet. The total CHIPS/E...
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ژورنال
عنوان ژورنال: Highlights of Astronomy
سال: 2005
ISSN: 1539-2996
DOI: 10.1017/s1539299600016385