Space Dust Collisions as a Planetary Escape Mechanism
作者： Arjun Berera
关键词: Astrobiology 、 Space (mathematics) 、 Physics 、 Meteoroid 、 Cosmic dust 、 Momentum 、 Hypervelocity 、 Planet 、 Astronomy 、 Collision 、 Atmosphere
摘要: Abstract It is observed that hypervelocity space dust, which continuously bombarding Earth, creates immense momentum flows in the atmosphere. Some of this fast dust inevitably will interact with atmospheric system, transferring energy and moving particles around, various possible consequences. This paper examines, supporting estimates, possibility by way collisions Earth-grazing component can facilitate planetary escape particles, whether they are atoms molecules form atmosphere or larger-sized particles. An interesting outcome collision scenario a variety contain telltale signs Earth's organic story, including microbial life life-essential molecules, may be “afloat” The present study assesses capability mechanism to propel some these biological constituents into space. Key Words: Hypervelocity dust—Collision—Planetary es...
harvard.edu
ed.ac.uk
core.ac.uk 
sci-hub.st 参考文章(45)
Hans Rohatschek, Levitation of stratospheric and mesospheric aerosols by gravito-photophoresis Journal of Aerosol Science. ,vol. 27, pp. 467- 475 ,(1996) , 10.1016/0021-8502(95)00556-0
F. L. Whipple, The Theory of Micro-Meteorites: Part I. In an Isothermal Atmosphere Proceedings of the National Academy of Sciences. ,vol. 36, pp. 687- 695 ,(1950) , 10.1073/PNAS.36.12.687
Victor P. Pasko, Mark A. Stanley, John D. Mathews, Umran S. Inan, Troy G. Wood, Electrical discharge from a thundercloud top to the lower ionosphere Nature. ,vol. 416, pp. 152- 154 ,(2002) , 10.1038/416152A
Li Xu, Guangyu Shi, Li Zhang, Jun Zhou, Yasunobu Iwasaka, Number concentration, size distribution and fine particle fraction of tropospheric and stratospheric aerosols China Particuology. ,vol. 1, pp. 201- 205 ,(2003) , 10.1016/S1672-2515(07)60142-0
Stephen Self, Michael R. Rampino, The 1883 eruption of Krakatau Nature. ,vol. 294, pp. 699- 704 ,(1981) , 10.1038/294699A0
Dale W. Griffin, Terrestrial Microorganisms at an Altitude of 20,000 m in Earth's Atmosphere Aerobiologia. ,vol. 20, pp. 135- 140 ,(2004) , 10.1023/B:AERO.0000032948.84077.12
David W. Hughes, Meteors and cosmic dust Endeavour. ,vol. 21, pp. 31- 35 ,(1997) , 10.1016/S0160-9327(96)10030-2
R. J. Havens, R. T. Koll, H. E. LaGow, The pressure, density, and temperature of the Earth's atmosphere to 160 kilometers Journal of Geophysical Research. ,vol. 57, pp. 59- 72 ,(1952) , 10.1029/JZ057I001P00059
James M. Rosen, The vertical distribution of dust to 30 kilometers Journal of Geophysical Research. ,vol. 69, pp. 4673- 4676 ,(1964) , 10.1029/JZ069I021P04673
Dieter Stöffler, Gerda Horneck, Sieglinde Ott, Ulrich Hornemann, Charles S Cockell, Ralf Moeller, Cornelia Meyer, Jean-Pierre de Vera, Jörg Fritz, Natalia A Artemieva, None, Experimental evidence for the potential impact ejection of viable microorganisms from Mars and Mars-like planets Icarus. ,vol. 186, pp. 585- 588 ,(2007) , 10.1016/J.ICARUS.2006.11.007