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首页> 外文期刊>Planetary and space science >The distributions of meteor substance in the Galactic coordinate system according to the MARS radar database and SonotaCo's TV catalogue
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The distributions of meteor substance in the Galactic coordinate system according to the MARS radar database and SonotaCo's TV catalogue

机译：根据MARS雷达数据库和SonotaCo的电视目录，银河系中的流星物质分布

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摘要

Research goal: the search for "extrasolar" sources of meteor substance in the Earth atmosphere using positions of meteor radiants in the Galactic coordinate system; comparison of the distributions of meteor substance in the Galactic coordinate system from the radar database of MARS (Meteor Radar Automated System in Kharkiv) and from the SonotaCo's TV catalogue. Hyperbolic meteors can be associated with the "extrasolar" space. In such case, properties of their "extrasolar" motion may manifest both in the orbital parameters of Earth meteors and in their Galactic coordinates. Extensive observations can give the answer to such hypothesis. Two large databases of meteoroid orbital elements exist: MARS radar database, obtained in 1972-1978 in Ukraine (Kashcheyev and Tkachuk, 1980), and SonotaCo's TV catalogue obtained in 2007-2013 in Japan (SonotaCo, 2009). Differences were found in the distributions in these two databases, as well as between different samples taken from them. Baseline differences between these two sets of observational data in magnitude, observational techniques and other parameters demonstrate the selection effect in the distribution of meteoric substance. Based on a visual analysis, we conclude that we cannot rule out the possibility of the concentration of the radiants of MARS hyperbolas relative to apexes of the Sun motion in Equatorial/Galactic coordinate systems. The coordinates of the apexes of Sun's motion are determined: for the point with respect to the nearest stars in Hercules constellation as (270,30)/(56,23) degrees; and for the point with respect to the Galactic center in Cygnus as (318,48)/(0,90) degrees.
机译：研究目标：利用银河系坐标系中的流星辐射位置，寻找地球大气中的“太阳系外”流星物质源；从MARS的雷达数据库（哈尔科夫的流星雷达自动化系统）和SonotaCo的电视目录中比较了银河系中流星物质的分布。双曲流星可以与“太阳系”空间相关联。在这种情况下，其“超太阳”运动的特性既可以在地球流星的轨道参数中也可以在其银河坐标中体现。广泛的观察可以为这种假设提供答案。存在着两个大型的流星体轨道要素数据库：MARS雷达数据库，于1972-1978年在乌克兰获得（Kashcheyev和Tkachuk，1980），SonotaCo的电视目录于2007-2013年在日本获得（SonotaCo，2009）。在这两个数据库中的分布以及从它们中获取的不同样本之间的分布中都发现了差异。两组观测数据在幅度，观测技术和其他参数上的基线差异证明了在流星物质分布中的选择效果。基于视觉分析，我们得出结论，我们不能排除赤道/银河系坐标系中相对于太阳运动顶点的MARS双曲线辐射集中的可能性。确定太阳运动顶点的坐标：对于相对于赫拉克勒斯星座中最近的恒星的点为（270,30）/（56,23）度；相对于天鹅座银河系中心的点为（318,48）/（0,90）度。

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