间歇性增生的毫秒双星:灯坏了的灯塔?
Intermittent accreting millisecond pulsars: light houses with broken lamps?
摘要:
间歇吸积毫秒X射线源是一种令人兴奋的新型源。它们的脉动出现和消失的时间尺度要么是几百秒,要么是几天。对这些源的研究为解释中子星LMXB中脉动存在与否的现有模型增加了新的观测约束。在本文中,我们提出了初步的研究结果,频谱和非周期性的变化研究的所有间歇性AMSP,特别侧重于脉动和非脉动周期之间的比较。
英文摘要:
Intermittent accreting millisecond X-ray pulsars are an exciting new type of sources. Their pulsations appear and disappear either on timescales of hundreds of seconds or on timescales of days. The study of these sources add new observational constraints to present models that explain the presence or not of pulsations in neutron star LMXBs. In this paper we present preliminary results on spectral and aperiodic variability studies of all intermittent AMSPs, with a particular focus on the comparison between pulsating and non pulsating periods.
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