[1]方维静,罗志全,唐德林,等.高振幅的δ Scuti变星AD CMi,GSC 4464-0924的周期变化[J].西华师范大学学报(自然科学版),2015,36(04):373-377.[doi::10.3969/j.issn.1673-5072.2015.04.010]
 FANG Wei jing,LUO Zhi quan,TANG De lin,et al.Period Changes of the High amplitude δ Scuti Stars:AD CMi,GSC 4464-0924[J].Journal of China West Normal University(Natural Sciences),2015,36(04):373-377.[doi::10.3969/j.issn.1673-5072.2015.04.010]
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高振幅的δ Scuti变星AD CMi,GSC 4464-0924的周期变化()
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《西华师范大学学报(自然科学版)》[ISSN:1673-5072/CN:51-1699/N]

卷:
36
期数:
2015年04期
页码:
373-377
栏目:
出版日期:
2015-12-20

文章信息/Info

Title:
Period Changes of the High amplitude δ Scuti Stars:AD CMi,GSC 4464-0924
作者:
方维静罗志全唐德林彭映江潘洋曹彪
西华师范大学 物理与空间科学学院,四川 南充 637000
Author(s):
FANG Weijing LUO Zhiquan TANG DelinPENG Yingjiang  PANG Yang CAO Biao
(Physics and Space Sciences College,China West Normal University, Nanchong Sichuan 637000, China)
关键词:
高振幅的δ Scuti星 周期变化 O-C图像
Keywords:
highamplitude δ-scuti stars period changesO-C diagrams
分类号:
P154
DOI:
:10.3969/j.issn.1673-5072.2015.04.010
文献标志码:
A
摘要:
呈现了两颗高振幅的δ Scuti变星GSC 4464-0924和AD CMi的观测-计算(O-C)的光极大值时刻图.收集了31 个GSC 4464-0924的极大值时刻和96个 AD CMi的极大值时刻,利用O-C图对它们进行了周期分析,从它们的O-C图像上发现GSC 4464-0924的周期在逐渐增加,AD CMi的周期也在不断增加且O-C图像表现出三角函数形 式的变化,因此它极有可能存在一个伴星.利用离散的傅里叶变换的方法获得了这个伴星的轨道参数.
Abstract:
We present observedcalculated (O-C) diagrams for two Highamplitude δ Scuti stars, GSC 4464-0924 and AD CMi. The time of 31 light maximums of GSC 4464-0924 and time of 96 light maximums of AD CMi are collected from the literatures. The O-C diagrams show that GSC 4464-0924 and AD CMi have an increasing period. We also find that the O-C diagram of AD CMi presents a trigonometric function type period variation which indicates the existence of a companion star. By using the Discrete Fourier Transformation method, the orbital parameters of the companion star are obtained.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2015-07-10
 基金项目: 国家自然科学基金(U1331121)
 作者简介: 方维静(1990-),女,四川开江人,硕士研究生,主要从事天体物理的研究.
通讯作者: 罗志全(1962-),男,四川眉山人,教授,博士,主要从事天体物理的研究.Email:nczqluo@126.com
更新日期/Last Update: 2015-12-20