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Earth-based detection of the millimetric thermal emission from the nucleus of comet 8P/Tuttle
Astronomy and Astrophysics
Little is known about the physical properties of cometary nuclei. Apart from space mission targets, measuring the thermal emission of a nucleus is one of the few means to derive its size, independently of its albedo, and to constrain some of its thermal properties. This emission is difficult to detect from Earth but space telescopes (Infrared Space Observatory, Spitzer Space Telescope, Herschel Space Observatory) allow reliable measurements in the infrared and the sub-millimetre domains. We aimdoi:10.1051/0004-6361/201016060 fatcat:xl2uwl6oajhy5csyclzcpjfyhm