Titlebook: Amplitude Modulation of Pulsation Modes in Delta Scuti Stars ; Dominic M. Bowman Book 2017 Springer International Publishing AG 2017 Delta

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Conclusions and Future Work,ring within a star. The observational studies of individual stars in this monograph provide strong evidence that non-linear processes are clearly at work in the many . Sct stars and provide valuable constraints for future asteroseismic modelling.

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Book 2017in-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

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Introduction, Eddington, the observation and modelling of stellar pulsations, which is known as asteroseismology, has been applied to many different types of stars in the HR diagram, covering a wide range in stellar mass and evolution. In this introduction chapter, overviews of asteroseismology, stellar pulsatio

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,KIC 7106205 — An Archetypal Delta Scuti Star with Amplitude Modulation,ion mode exhibits amplitude modulation in KIC 7106205 whilst all other pulsation modes remain constant in amplitude, such that the visible pulsation energy budget is not conserved over the 4-yr . data set. In this chapter, the published results from the analysis of this . Scuti star are discussed an

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, Observations of Delta Scuti Stars,ommon type of pulsator among main sequence A and F stars, and are found in a transition region between low- and high-mass stars in the HR diagram. The hybrid stars found in the . data set and an evaluation of the observational blue and red edges of the classical instability strip are also discussed.

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Amplitude Modulation in , Delta Scuti Stars,able pulsation mode amplitudes can be grouped as intrinsic or extrinsic. Case study examples are given which demonstrate different scenarios: constant mode amplitudes, amplitude modulation caused by beating, and amplitude modulation caused by non-linearity. It is shown that the majority of . Sct sta