利用开普勒项目数据研究三颗德尔塔苏蒂星的脉动模式:KIC3429637、KIC10451090、KIC2987660

IF 1.9 4区 物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS New Astronomy Pub Date : 2024-08-14 DOI:10.1016/j.newast.2024.102294
Amin Shafaeiyeh Hiagh, Nematollah Riazi
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引用次数: 0

摘要

我们分析了开普勒太空望远镜观测到的三颗δ Scuti 星的光变曲线。开普勒太空望远镜收集的数据,以及对每颗恒星的光变曲线的分析和在线数据库的使用,都被用来实现本项目的目标。数据是通过开普勒的主要任务收集的。我们比较了从 Python 的 Lightkurve 软件包和 KASOC 在线数据中心获得的数据,以验证数据。我们选择必要的数据,如恒星的通量、观测日期和光谱类型。通过研究各种类型的脉动变星,根据它们的通量、脉动类型等,我们选出了三颗德尔塔Scuti星。据观察,这些恒星大多以 p 模式脉动。然而,被选中的恒星同时以 p 模式和(可能)g 模式脉动。我们选择这些恒星,是因为缺乏有关它们的文章。此外,我们还从这些恒星的光变曲线中推断出了它们的一些物理特性。总之,这项研究的结果表明,KIC3429637 和 KIC10451090 这两颗恒星只以 p 模式脉动,而 KIC2987660 则同时以 p 模式和 g 模式脉动。
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Pulsation modes of three Delta Scuti stars using Kepler project data: KIC3429637, KIC10451090, KIC2987660

We have analyzed the light curves of three δ Scuti stars that were observed by the Kepler Space Telescope. Data collected by the Kepler space telescope, as well as analysis of the light curve of each star and the use of online databases, have been utilized to achieve the objectives of this project. Data has been collected through Kepler's main mission. We compare both data that we get from the Lightkurve package of Python and the KASOC online data centre to verify the data. We select the necessary data like flux, observation date, and the spectral type of the stars. By investigating various types of pulsating variable stars, three Delta Scuti stars have been selected due to their flux, pulsating type, etc. It is observed that most of these stars are pulsating in the p-modes. However, the selected stars pulsate in both p-modes and (possibly) g-modes. We select these stars, due to the lack of articles about them. Furthermore, some physical properties of these stars are deduced from their light curves. In summary, the results of this study indicate that the stars KIC3429637 and KIC10451090 are pulsating only in p-modes, while KIC2987660 is pulsating both in p-modes and g-modes.

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来源期刊
New Astronomy
New Astronomy 地学天文-天文与天体物理
CiteScore
4.00
自引率
10.00%
发文量
109
审稿时长
13.6 weeks
期刊介绍: New Astronomy publishes articles in all fields of astronomy and astrophysics, with a particular focus on computational astronomy: mathematical and astronomy techniques and methodology, simulations, modelling and numerical results and computational techniques in instrumentation. New Astronomy includes full length research articles and review articles. The journal covers solar, stellar, galactic and extragalactic astronomy and astrophysics. It reports on original research in all wavelength bands, ranging from radio to gamma-ray.
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