期刊全称 | Amplitude Modulation of Pulsation Modes in Delta Scuti Stars | 影响因子2023 | Dominic M. Bowman | 视频video | http://file.papertrans.cn/155/154756/154756.mp4 | 发行地址 | Nominated as an outstanding PhD thesis by the University of Central Lancashire, Preston, UK.Includes a comprehensive literature review of amplitude modulation across the Hertzsprung–Russell (HR) diagr | 学科分类 | Springer Theses | 图书封面 |  | 影响因子 | This outstanding thesis by Dominic Bowman provides a thorough investigation of long-standing questions as to whether amplitude modulation is astrophysical, whether it offers insights into pulsating stars, and whether simple beating of modes with stable amplitudes is unrecognised because of a lack of frequency resolution. In this thesis, the author studied a uniform sample of 983 delta Scuti stars—the most common type of main-sequence heat engine pulsator—that were observed nearly continuously for 4 years at stunning photometric precision of only a few parts per million by the Kepler space mission. With no mission planned to supersede the Kepler 4-year data set, this thesis will stand as the definitive study of these questions for many years. With revolutionary photometric data from the planet-hunting Kepler space mission, asteroseismic studies have been carried out on many hundreds of main-sequence solar-type stars and about 10,000 red giants. It is easy to understand why those stochastically driven stars have highly variable amplitudes. Over much of the rest of the Hertzsprung–Russell (HR) diagram, stellar pulsations are driven by heat mechanisms, which are much more regular than | Pindex | Book 2017 |
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