期刊
ASTROPHYSICAL JOURNAL
卷 781, 期 1, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0004-637X/781/1/53
关键词
astrobiology; planets and satellites: atmospheres; planets and satellites: composition
资金
- NSF Astronomy and Astrophysics Postdoctoral Fellowship [AST-1102827]
- NASA Planetary Atmospheres grant [NNX11AD82G]
- NASA [147434, NNX11AD82G] Funding Source: Federal RePORTER
- Division Of Astronomical Sciences
- Direct For Mathematical & Physical Scien [1102827] Funding Source: National Science Foundation
Organic haze plays a key role in many planetary processes ranging from influencing the radiation budget of an atmosphere to serving as a source of prebiotic molecules on the surface. Numerous experiments have investigated the aerosols produced by exposing mixtures of N-2/CH4 to a variety of energy sources. However, many N-2/CH4 atmospheres in both our solar system and extrasolar planetary systems also contain carbon monoxide (CO). We have conducted a series of atmosphere simulation experiments to investigate the effect of CO on the formation and particle size of planetary haze analogues for a range of CO mixing ratios using two different energy sources, spark discharge and UV. We find that CO strongly affects both number density and particle size of the aerosols produced in our experiments and indicates that CO may play an important, previously unexplored, role in aerosol chemistry in planetary atmospheres.
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