Physical Considerations for an Intercept Mission to a 1I/'Oumuamua-like Interstellar Object

IF 1.5 Q3 ASTRONOMY & ASTROPHYSICS

Journal of Astronomical Instrumentation Pub Date : 2022-11-03 DOI:10.1142/s2251171723400019

A. Siraj, A. Loeb, A. Moro-Martin, Mark Elowitz, A. White, W. Watters, G. Melnick, Richard Cloete, J. Grindlay, F. Laukien

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引用次数: 2

Abstract

In this paper, we review some of the extant literature on the study of interstellar objects (ISOs). With the forthcoming Vera C. Rubin Telescope and Legacy Survey of Space and Time (LSST), we ﬁnd that 0 . 38 − 84 ‘Oumuamua-like interstellar objects are expected to be detected in the next 10 years, with 95% conﬁdence. The feasibility of a rendezvous trajectory has been demonstrated in previous work. In this paper, we investigate the requirements for a rendezvous mission with the primary objective of producing a resolved image of an interstellar object. We outline the rendezvous distances necessary as a function of resolution elements and object size. We expand upon current population synthesis models to account for the size dependency on the detection rates for reachable interstellar objects. We assess the trade-oﬀ between object diameter and occurrence rate, and conclude that objects with the size range between a third of the size and the size of ‘Oumuamua will be optimal targets for an imaging rendezvous. We also discuss expectations for surface properties and spectral features of interstellar objects, as well as the beneﬁts of various spacecraft storage locations.

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拦截类oumuamua星际物体的物理考虑

本文对现有的一些关于星际物体研究的文献进行了综述。通过即将到来的Vera C. Rubin望远镜和时空遗留调查(LSST)，我们发现0。38 - 84 '的类奥陌陌星际物体预计将在未来10年内被探测到，置信度为95%。交会轨迹的可行性已经在以往的工作中得到了验证。在本文中，我们研究了交会任务的要求，其主要目标是产生一个星际物体的分辨率图像。我们概述了作为分辨率元素和对象大小的函数所必需的交会距离。我们扩展了当前的人口综合模型，以解释可到达星际物体的探测率对大小的依赖。我们评估了物体直径和发生率之间的权衡，并得出结论，大小范围在“Oumuamua”大小的三分之一之间的物体将是成像交会的最佳目标。我们还讨论了对星际物体表面特性和光谱特征的期望，以及不同航天器存储位置的好处。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Astronomical Instrumentation ASTRONOMY & ASTROPHYSICS-

CiteScore

2.30

自引率

7.70%

发文量

期刊介绍： The Journal of Astronomical Instrumentation (JAI) publishes papers describing instruments and components being proposed, developed, under construction and in use. JAI also publishes papers that describe facility operations, lessons learned in design, construction, and operation, algorithms and their implementations, and techniques, including calibration, that are fundamental elements of instrumentation. The journal focuses on astronomical instrumentation topics in all wavebands (Radio to Gamma-Ray) and includes the disciplines of Heliophysics, Space Weather, Lunar and Planetary Science, Exoplanet Exploration, and Astroparticle Observation (cosmic rays, cosmic neutrinos, etc.). Concepts, designs, components, algorithms, integrated systems, operations, data archiving techniques and lessons learned applicable but not limited to the following platforms are pertinent to this journal. Example topics are listed below each platform, and it is recognized that many of these topics are relevant to multiple platforms. Relevant platforms include: Ground-based observatories[...] Stratospheric aircraft[...] Balloons and suborbital rockets[...] Space-based observatories and systems[...] Landers and rovers, and other planetary-based instrument concepts[...]