Extensive photometry of V1838 Aql during the 2013 superoutburst

J. Echevarría, E. de Miguel, J. V. Hernández Santisteban, R. Michel, R. Costero, L. J. Sánchez, A. Ruelas-Mayorga, J. Olivares, D. González-Buitrago, J. L. Jones, A. Oskanen, W. Goff, J. Ulowetz, G. Bolt, R. Sabo, F.-J. Hambsch, D. Slauson, W. Stein

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

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 ofthe 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.
Original languageEnglish
Pages (from-to)21-30
JournalRevista Mexicana de Astronomía y Astrofísica
Volume55
Issue number1
Publication statusPublished - 1 Apr 2019

Keywords

  • Techniques: photometric
  • Stars: novae
  • Cataclysmic variables
  • Stars: dwarf novae
  • Stars: individual: V1838 Aql

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