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Showing 1 to 5 of 5 for “"delta scuti"”.
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Amplitude modulation and energy conservation of pulsation modes in delta Scuti stars
The pulsations in δ Sct stars are excited by a heat engine driving mechanism caused by in-creased opacity in their surface layers, and have pulsation periods of order a few hours. Space based observations in the last decade have revealed a diverse range of pulsational be-haviour in these stars, …
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Development of a Method for Calculating Delta Scuti Rotational Velocities and Hydrogen Beta Color Indices
… understanding of the structure and evolution of Delta Scuti stars, 167 Delta Scutis north of -01 degrees declination and brighter than 13th magnitude have been observed spectroscopically. A method for calculating rotational velocity values and Hydrogen-Beta color indices for the stars in the data …
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Classification of Variable Stars using Convolutional Neural Network
… identify four different types of variable stars: Delta Scuti variables, RR Lyrae variables, rotation modulations, and eclipsing binaries from a sample among negative or light curves whose variability is unknown. The current model has identified 2,569 new variable star candidates from a total of …
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The identification and classification of variability in stellar sources observed with SuperWasp
… in stellar classes Algol, Beta Lyrae, W UMa, Delta Scuti and RR Lyrae (RRAB) and comparison made with published equivalents. SuperW ASP objects known in the General Catalogue of Variable Stars (GCVS) were also assessed to identify differences. The automated system contained three neural …
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A Search for Low-Amplitude Variability Among Population I Main Sequence Stars
The detection of variable stars in open clusters is an essential component of testing stellar structure and evolution theories. The ability to detect low-amplitude variability among cluster members is directly related to the quality of the photometric results. Point Spread Function (PSF) fitting is …