Extensive photometry of V1838 AQL during the 2013 superoutburst
Echevarria J.
De Miguel E.
Hernandez Santisteban J.V.
Michel R.
Costero R.
Sanchez L.J.
Ruelas-Mayorga A.
Olivares J.
Gonzalez-Buitrago D.
Jones J.L.
Oskanen A.
Goff W.N.
Ulowetz J.
Bolt G.
Sabo R.
Hambsch F.-J.
Slauson D.
Stein W.
Revista Mexicana de Astronomia y Astrofisica
Volumen 55
páginas 21 - 30
2019-04-01
Citas: 2
© 2019 Universidad Nacional Autonoma de Mexico. All rights reserved.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 ? = 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.
Cataclysmic variables-stars: dwarf novae, Stars: individual: V1838 Aql, Techniques: photometric-stars: novae
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