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Showing 1 to 12 of 12 for “"Variable Star"”.
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Theoretical study of the variable star Eta Aquilae
Made available in DSpace on 2017-11-30T22:11:14Z (GMT). No. of bitstreams: 2 5959331.pdf: 3349348 bytes, checksum: d9491ee91b19a14dc9a33dc8b4c500b8 (MD5) license.txt: 4813 bytes, checksum: 715c4321821a960fa1a1e91d2ac7ebce (MD5) Previous issue date: 1899
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Variable star photometry in a secondary school curriculum
The author proved that photometry of variable stars can be performed by anyone using the shoestring budget of only a digital camera along with a laptop. Extrinsic variable star Algol was observed using a 14" telescope as well as CCD and had its light curve plotted. In direct comparison, V474 Mon …
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Pulsations in the white dwarf primary of a cataclysmic variable star
… for the study of pulsating white dwarf stars. If these techniques could be applied to the white dwarf primaries of Cataclysmic Variable stars, the study of accretion in interacting binary systems would benefit enormously. Our understanding of normal modes in white dwarf pulsators would …
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Classification of Variable Stars using Convolutional Neural Network
… for the process of classifying and identifying variable stars through the analysis of unprocessed light curves from Transiting Exoplanet Survey Satellite (TESS). As astronomical data is becoming increasingly complex, and as advanced missions deploy sophisticated instruments for data collection, …
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On the model for U Geminorum
The term cataclysmic variable comprises several types of variable star - novae, recurrent novae, dwarf novae; and to these we add the nova-like variables, stars which exhibit many of the characteristics of the novae but which have not been observed to erupt. U Geminorum, discovered by Hinds in …
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An Automated Pipeline for Variability Detection and Classification for the Small Telescopes Installed at the Liverpool Telescope
… first 1200 days of Skycam operation to catalogue variable sources in the La Palma sky. A previously developed pipeline reduces the Skycam images and produces photometric time-series data named light curves of millions of objects. 590,492 of these objects have 100 or more data points of sufficient …
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Asteroseismology from the main sequence to giant stars
… a detailed description of the interior of stars, and the determination of stellar parameters can be obtained. An extensive sample of bright K and M class giant stars were surveyed to detect the presence of any noticeable variability. Three giant stars have been studied in detail. In …
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Eclipsing Binaries and Period Changes in the SuperWASP Archive
… light curves make them highly suitable for variable star research of many kinds, and the size of the database (~30 million objects) allows for the discovery and study of rare objects and stellar types. Techniques optimized for analyzing SuperWASP data were developed over the course of the …
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Analyzing Spectra of Type Iin Supernovae and their Host Environments To Determine If Some Arise From Runaway Progenitors
… km/s or greater may imply a runaway progenitor star, ejected via dynamical interaction or as the mass-gaining companion of a binary star system where the primary explodes first. Signicant fractions of runaway progenitors would have an impact on our understanding of the progenitors of SNe IIn, …
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Autonomous lost in space and time state determination using periodic variable stars
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms
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Development of a Method for Calculating Delta Scuti Rotational Velocities and Hydrogen Beta Color Indices
… 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 set with no …
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Investigation of the Progenitors and Outbursts of Classical and Recurrent Novae
… the surface of a white dwarf (WD). The secondary stars in such systems fill their Roche lobe and material is transferred onto the WD primary star via an accretion disk.Recurrent novae (RNe) show many similarities to CNe, but have had more than one recorded outburst. They play an important role as …