Extensive Photometry of V1838 Aql During the 2013 Superoutburst
Langue
en
Article de revue
Ce document a été publié dans
Revista Mexicana de Astronomia y Astrofisica. 2019, vol. 55, p. 21-30
Universidad Nacional Autonoma de Mexico
Résumé en anglais
We present an in-depth photometric study of the 2013 superoutburst of the recently discovered cataclysmic variable V1838 Aql and subsequent photometry near its quiescent state. A careful examination of the development of ...Lire la suite >
We present an in-depth photometric study of the 2013 superoutburst of the recently discovered cataclysmic variable V1838 Aql and subsequent photometry near its quiescent state. A careful examination of the development of the superhumps is presented. Our best determination of the orbital period is Porb=0.05698(9) days, based on the periodicity of early superhumps. Comparing the superhump periods at stages A and B with the early superhump value we derive a period excess of ɛ=0.024(2) and a mass ratio of q=0.10(1). We suggest that V1838 Aql is approaching the orbital period minimum and thus has a low-mass star as a donor instead of a substellar object.< Réduire
Mots clés en anglais
techniques: photometric
stars: novae
cataclysmic variables
stars: dwarf novae
stars: individual: V1838 Aql
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