Scholarlink

<b>Abstract</b>— <p>In addition to craters, radar-bright and dark spots are observed on the surface of Venus. Their formation is presumed to be caused by the effects of shock waves generated by “meteor airbursts.” One reason for the formation of dark spots, which correspond to a smoother surface, could be the melting and evaporation of the surface layer due to radiation from the shock wave. Direct calculations of the fragmentation and deceleration of asteroids with sizes of 0.6–1 km conducted in this work, along with assessments of the resulting radiation and its effect on the surface, have shown that within an area with a characteristic size of several tens of kilometers, the thickness of the evaporated/melted layer is several centimeters. The flow of the melt and the deposition of condensed vapors can significantly smooth the surface and affect its reflective properties.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Assessment of “Meteor Airburst” Radiation in the Atmosphere of Venus

  • 期刊论文

  • 发表日期：

    2025年12月9日

查看全文
  • V. V. Shuvalov,
  • B. A. Ivanov

摘要

Abstract—

In addition to craters, radar-bright and dark spots are observed on the surface of Venus. Their formation is presumed to be caused by the effects of shock waves generated by “meteor airbursts.” One reason for the formation of dark spots, which correspond to a smoother surface, could be the melting and evaporation of the surface layer due to radiation from the shock wave. Direct calculations of the fragmentation and deceleration of asteroids with sizes of 0.6–1 km conducted in this work, along with assessments of the resulting radiation and its effect on the surface, have shown that within an area with a characteristic size of several tens of kilometers, the thickness of the evaporated/melted layer is several centimeters. The flow of the melt and the deposition of condensed vapors can significantly smooth the surface and affect its reflective properties.