A deep analysis for New Horizons’ KBO search images

IF 2.2 4区物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS

Publications of the Astronomical Society of Japan Pub Date : 2024-05-29 DOI:10.1093/pasj/psae043

Fumi Yoshida, Toshifumi Yanagisawa, Takashi Ito, Hirohisa Kurosaki, Makoto Yoshikawa, Kohki Kamiya, Ji-an Jiang, Alan Stern, Wesley C Fraser, Susan D Benecchi, Anne J Verbiscer

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引用次数: 0

Abstract

Observation datasets acquired by the Hyper Suprime-Cam (HSC) on the Subaru Telescope for NASA’s New Horizons mission target search were analyzed through a method devised by JAXA. The method makes use of Field Programmable Gate arrays and was originally used to detect fast-moving objects such as space debris or near-Earth asteroids. Here we present an application of the method to detect slow-moving Kuiper Belt Objects (KBOs) in the New Horizons target search observations. A cadence that takes continuous images of one HSC field of view for half a night fits the method well. The observations for the New Horizons Kuiper Belt Extended Mission (NH/KEM) using HSC began in 2020 May, and are ongoing. Here we show our result of the analysis of the dataset acquired from 2020 May through 2021 June that have already passed the proprietary period and are open to the public. We detected 84 KBO candidates in the 2020 June and 2021 June datasets, when the observation field was close to opposition.

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深入分析新视野号的KBO搜索图像

通过日本宇宙航空研究开发机构（JAXA）设计的一种方法，对斯巴鲁望远镜（Subaru Telescope）上的超高清摄像头（HSC）为美国国家航空航天局（NASA）新视野号（New Horizons）任务目标搜索获取的观测数据集进行了分析。该方法利用现场可编程门阵列，最初用于探测快速移动的物体，如空间碎片或近地小行星。在此，我们介绍在新视野号目标搜索观测中应用该方法探测慢速移动的柯伊伯带天体（KBO）的情况。对一个 HSC 视场连续拍摄半晚图像的节奏非常适合该方法。新视野号柯伊伯带延伸任务（NH/KEM）使用 HSC 的观测始于 2020 年 5 月，目前仍在进行中。在此，我们展示对 2020 年 5 月至 2021 年 6 月期间获取的数据集的分析结果，这些数据集已经过了专有期，向公众开放。我们在 2020 年 6 月和 2021 年 6 月的数据集中发现了 84 个 KBO 候选天体，当时观测区域接近对立面。

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

Publications of the Astronomical Society of Japan 地学天文-天文与天体物理

CiteScore

4.10

自引率

13.00%

发文量

审稿时长

4-8 weeks

期刊介绍： Publications of the Astronomical Society of Japan (PASJ) publishes the results of original research in all aspects of astronomy, astrophysics, and fields closely related to them.