Multiband photometry of Martian Recurring Slope Lineae (RSL) and dust-removed features at Horowitz crater, Mars from TGO/CaSSIS color observations
نویسندگان
چکیده
Recurring Slope Lineae (RSL) are narrow, dark streaks typically lengthening down Martian steep slopes during warm seasons, fading the cold ones and regularly recurring every year. Their origin is still debated. Although initially interpreted as possible flows of seeping water, either coming from a subsurface aquifer or through atmospheric processes, recent studies favor dry granular flow origin. To date, nature formation mechanism RSL represent an open science question about present-day surface processes occurring on Mars. In this study, we analyze color observations at Horowitz crater, acquired with Colour Surface Science Imaging System (CaSSIS) board ESA's ExoMars Trace Gas Orbiter (TGO) mission. We compare relative photometry respect to nearby terrains reflectance dust-removed surfaces, including dust-devil tracks, in four CaSSIS filters help assess their properties. Comparing our dust-deposition soil-wetting models published laboratory experiments, find that former results provide better fit than latter, hence supporting for RSL. • martian feature which present first 4 band albedo measurements performed data. Our analysis support
منابع مشابه
Granular flows at recurring slope lineae on Mars indicate a limited role for liquid water
1US Geological Survey, Astrogeology Science Center, Flagstaff, AZ, USA. 2The University of Arizona, Lunar and Planetary Laboratory, Tucson, AZ, USA. 3Department of Earth Sciences, Durham University, Durham, UK. 4Planetary Science Institute, Tucson, AZ, USA. *e-mail: [email protected] Mars has widespread H2O in forms including polar caps, ground ice, frosts, hydrated minerals and water vapour. De...
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Introduction: Recurring Slope Lineae (RSL) [12] are dark flows found at many locations throughout low and middle latitudes on Mars. Distinctive properties of RSL include slow incremental growth, formation on warm slopes in warm seasons, and annual fading and recurrence. These properties strongly suggest that RSL formation is controlled by a volatile and are consistent with flows of water or bri...
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ژورنال
عنوان ژورنال: Planetary and Space Science
سال: 2022
ISSN: ['0032-0633', '1873-5088']
DOI: https://doi.org/10.1016/j.pss.2022.105443