GFCAT: GALEX亚分钟分辨率观测到的紫外线变量目录

IF 8.6 1区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS

Astrophysical Journal Supplement Series Pub Date : 2023-09-19 DOI:10.3847/1538-4365/ace717

Chase C. Million, Michael St. Clair, Scott W. Fleming, Luciana Bianchi, Rachel Osten

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引用次数: 0

摘要

摘要:我们首次对星系演化探测器(GALEX)的完整数据档案进行了系统搜索，通过将整个任务的数据重新划分为30秒的时间分辨率，在秒到分钟的时间尺度上寻找天体物理变化。结果是GALEX耀斑目录(GFCAT)，它描述了1426个紫外可变源，包括恒星耀斑，食双星，δ Scuti和RR Lyrae变量，以及活动星系核。许多这些来源以前从未被确定为变量。我们还编制了一张关于紫外线耀斑的观测表，以及相关的统计数据和测量数据，包括能量和候选食星。这项工作是由gPhoton软件的显著增强版本实现的，用于分析时域GALEX数据;这个“gPhoton2”包可用于支持后续工作。

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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The GFCAT: A Catalog of Ultraviolet Variables Observed by GALEX with Subminute Resolution

Abstract We have performed the first systematic search of the full Galaxy Evolution Explorer (GALEX) data archive for astrophysical variability on timescales of seconds to minutes by rebinning data across the whole mission to 30 s time resolution. The result is the GALEX Flare Catalog (GFCAT), which describes 1426 ultraviolet variable sources, including stellar flares, eclipsing binaries, δ Scuti and RR Lyrae variables, and active galactic nuclei. Many of these sources have never previously been identified as variable. We have also assembled a table of observations of ultraviolet flares and accompanying statistics and measurements, including energies, and of candidate eclipsing stars. This effort was enabled by a significantly enhanced version of the gPhoton software for analyzing time-domain GALEX data; this “gPhoton2” package is available to support follow-on efforts.

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来源期刊

Astrophysical Journal Supplement Series 地学天文-天文与天体物理

CiteScore

14.50

自引率

5.70%

发文量

264

审稿时长

2 months

期刊介绍： The Astrophysical Journal Supplement (ApJS) serves as an open-access journal that publishes significant articles featuring extensive data or calculations in the field of astrophysics. It also facilitates Special Issues, presenting thematically related papers simultaneously in a single volume.