首页> 外文期刊>Earth, Moon, and Planets: An International Journal of Comparative Planetology >On the Use of Meteor Camera Systems in the Detection of Kuiper Belt Objects Through Serendipitous Stellar Occultations
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On the Use of Meteor Camera Systems in the Detection of Kuiper Belt Objects Through Serendipitous Stellar Occultations

机译:流星相机系统在偶然星恒掩星探测柯伊伯带天体中的应用

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摘要

The direct detection of Kuiper Belt Objects (KBOs) by telescopic imaging is not currently practical for objects much less than 100 km in diameter. However, indirect methods such as serendipitous stellar occultations might still be employed to detect these bodies. The method of serendipitous stellar occultations has been previously used with some success in detecting KBOs-Roques et al. (Astron J 132(2):819-822, 2006) detected three Trans-Neptunian objects; Schlichting et al. (Nature 462(7275):895-897, 2009) and Schlichting et al. (Astrophys J 761:150, 2012) each detected a single object in archival Hubble Space Telescope data. However, previous assessments of KBO occultation detection rates have been calculated only for telescopes-we extend this method to video camera systems, and we apply this derivation to the automated meteor camera systems currently in use at the University of Western Ontario. We find that in a typical scenario we can expect one occultation per month. However recent studies such as those of Shankman et al. (Astrophys. J. Lett. 764. doi:10.1088/2041-8205/764/1/L2, 2013) and Gladman et al. (AAS/Division for Planetary Sciences Meeting Abstracts, 2012) which indicate that the population of small KBOs may be smaller than has been assumed in the past may result in a sharp reduction of these rates. Nonetheless, a survey for KBO occultations using existing meteor camera systemsmay provide valuable information about the number density of KBOs.
机译:目前,对于直径小于100 km的物体,通过望远镜成像直接检测柯伊伯带天体(KBO)尚不可行。但是,仍然可以采用间接方法,例如偶然的恒星掩星法来检测这些尸体。先前,偶然的恒星掩星法已经成功地用于检测KBOs-Roques等人。 (Astron J 132(2):819-822,2006)检测到三个跨海王星天体; Schlichting等。 (Nature 462(7275):895-897,2009)和Schlichting等人。 (Astrophys J 761:150,2012)各自在档案哈勃太空望远镜数据中检测到一个物体。但是,以前对KBO掩星探测率的评估仅针对望远镜进行了计算,我们将此方法扩展到了摄像机系统,并将此推导应用于西安大略大学当前使用的自动流星摄像机系统。我们发现,在典型情况下,我们可以期望每月进行一次掩星掩盖。但是,最近的研究,例如Shankman等人的研究。 (Astrophys.J.Lett.764.doi:10.1088 / 2041-8205 / 764/1 / L2,2013)和Gladman等(2013)。 (美国航空航天局/行星科学会议摘要,2012年)指出,小型KBO的数量可能比过去假定的要少,这可能导致这些比率急剧下降。尽管如此,使用现有的流星相机系统进行的KBO掩星调查可能会提供有关KBO数量密度的有价值的信息。

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