تقرير
Investigating Sulfur-Rich Mercury Analogs Exposed to Simulated Micrometeoroid Bombardment in the Laboratory
العنوان: | Investigating Sulfur-Rich Mercury Analogs Exposed to Simulated Micrometeoroid Bombardment in the Laboratory |
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المؤلفون: | N Bott, M S Thompson, M J Loeffler, K B Prissel, K E Vander Kaaden, F M McCubbin |
بيانات النشر: | United States: NASA Center for Aerospace Information (CASI), 2024. |
سنة النشر: | 2024 |
مصطلحات موضوعية: | Lunar and Planetary Science and Exploration |
الوصف: | Space weathering (SW) continually alters the spectral, microstructural, and chemical characteristics of the surface of airless bodies across the solar system. The effects of SW vary depending on the heliocentric distance and the initial composition of the target surface. While SW on the Moon and S-type asteroids is well documented, our understanding of how this process affects Mercury is at an early stage. Mercury’s interplanetary environment is harsh, with the surface of the planet experiencing an intense solar wind flux as well as a higher flux and velocity of micrometeoroid impactors compared to the Moon and S-type asteroids. In addition, Mercury is also a geochemical endmember, with a surface composition low in Fe (<2 wt.%) and enriched in volatile components, such as sulfur (up to 4 wt.% in the low reflectance material (LRM)). These volatile components are thought to play a major role in the formation of hollows via their sublimation. Sulfur has been hypothesized to occur at the surface of Mercury as sulfide minerals (MgS, CaS) based on its correlation with Mg and Ca in remote sensing data. However, recent observations of chaotic terrains in the north polar area of Mercury and of glacier-like features at lower latitudes indicated that octasulfur (S |
نوع الوثيقة: | Report |
اللغة: | English |
الوصول الحر: | https://ntrs.nasa.gov/citations/20240000320Test |
ملاحظات: | 80JSC022DA035 811073 |
رقم الانضمام: | edsnas.20240000320 |
قاعدة البيانات: | NASA Technical Reports |
الوصف غير متاح. |