Publicación:
Cataclysmic variable stars: Photometry of V893 Sco star and spectroscopy of HS 0220 + 0603 star
Cataclysmic variable stars: Photometry of V893 Sco star and spectroscopy of HS 0220 + 0603 star
No hay miniatura disponible
Fecha
2018
Autores
Cori W.
Tello J.
Título de la revista
Revista ISSN
Título del volumen
Editor
Institute of Physics Publishing
Proyectos de investigación
Unidades organizativas
Número de la revista
Abstracto
Differential photometry was applied on V893 Sco star, observed from the Astronomical Observatory of the Universidad Nacional de Ingeniería 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.
Descripción
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