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Cataclysmic variable stars: Photometry of V893 Sco star and spectroscopy of HS 0220 + 0603 star

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Fecha
2018
Autores
Cori W.
Tello J.
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Institute of Physics Publishing
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Abstracto
Differential photometry was applied on V893 Sco star, observed from the Astronomical Observatory of the Universidad Nacional de IngenierĂ­a in Peru. From its light curve it was measured an orbital period of 0.076 days approximately. Moreover, spectroscopic analysis was performed on the HS 0220 + 0603 star, which data was acquired from a database. A fitting program was written in Python to find, out of several synthetic spectra of white dwarf and templates of red dwarf, the combination of a white dwarf and a red dwarf spectrum that fits best the HS 0220 + 0603 spectrum, thus we found that this spectrum is a composition of a white dwarf spectrum of 30000 K and surface gravity (log g) = 8.0, and a M5.5 type red dwarf star.
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Palabras clave
White dwarfs, Computer software, Photometry, Spectroscopic analysis, Astronomical observatories, Cataclysmic variables, Differential photometry, Dwarf stars, Light curves, Orbital periods, Surface gravity, Synthetic spectra
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