Modeling of the cometary nucleus-coma interface region
نویسندگان
چکیده
منابع مشابه
DSMC Simulation of the Cometary Coma
The study of the comet coma, or its tenuous atmosphere, is a major space application of rarefied gas dynamics, which requires modeling the gas flow in a wide range of Knudsen number. For weak to moderate comets, only the subsolar region of the coma is in a collision dominated regime. In the low density regions of the upper atmospheres of the planets and the planetary satellites and the middle t...
متن کاملPhysics of intact capture of cometary coma dust samples
The physics of hypervelocity impact into foams are of interest because of application to comet dust capture during flyby encounters. Particles much larger than the foam cells behave as if the foam were a continuum, so that standard equations of fluid mechanics describe the effects of drag and ablation. Calculations based on these arguments accurately reproduce experimental results.
متن کاملInvestigating Dusty Plasma of Cometary Coma with Nasa Stardust Data
Introduction: Harbingers of doom or prophesy for the ancient peoples of Earth, comets are now understood to be primordial fragments from our Solar System's birth composed of various ices and dust species. Among the questions surrounding comets and their elusive character are the properties and processes of the rarefied gasses and disperse dust that surround their solid nucleus. Dusty, or comple...
متن کاملFrom Kuiper Belt Object to Cometary Nucleus
We now realise that many small body populations are related through a common origin in the Kuiper Belt, notably the Centaurs, the Jupiter Family Comets and certain dead-comets. But does primitive material from the Kuiper Belt survive the journey to the inner solar system and can we learn anything about it by studying the comets? We discuss observational evidence and other considerations that re...
متن کاملCometary science. Time variability and heterogeneity in the coma of 67P/Churyumov-Gerasimenko.
Comets contain the best-preserved material from the beginning of our planetary system. Their nuclei and comae composition reveal clues about physical and chemical conditions during the early solar system when comets formed. ROSINA (Rosetta Orbiter Spectrometer for Ion and Neutral Analysis) onboard the Rosetta spacecraft has measured the coma composition of comet 67P/Churyumov-Gerasimenko with w...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Advances in Space Research
سال: 1989
ISSN: 0273-1177
DOI: 10.1016/0273-1177(89)90239-1