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5. Updating the orbital ephemeris of the dipping source XB 1254-690 and the distance to the source

Updating the orbital ephemeris of the dipping source XB 1254-690 and the distance to the source

来源 :天文和天体物理学研究：英文版 | 被引量 : 0次 | 上传用户：caway1

【摘 要】

：

XB 1254–690 is a dipping low mass X-ray binary system hosting a neutron star and showing type I X-ray bursts. We aim at obtaining a more accurate orbital ephem

【出 处】

：

天文和天体物理学研究：英文版

【发表日期】

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2017年10期

【关键词】

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轨道周期 距离 星历 浸渍 X射线爆发 双星系统 到达时间 二次函数 stars： neutron -- stars： individual （XB 1254- 

【基金项目】

：

the Regione Autonoma della Sardegna through POR-FSE Sardegna 2007–2013, L.R. 7/2007,,Progetti di Ricerca di Base e Orientata, Project N. CRP-60529,,financial contribution from the agreement ASI-INAF I

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论文部分内容阅读

XB 1254–690 is a dipping low mass X-ray binary system hosting a neutron star and showing type I X-ray bursts. We aim at obtaining a more accurate orbital ephemeris and at constraining the orbital period derivative of the system for the first time. In addi

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