Extensive photometry of V1838 Aql during the 2013 superoutburst
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 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.
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Universidad Nacional Autónoma de México, Instituto de Astronomía
2019
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oai:scielo:S0185-110120190001000212019-07-23Extensive photometry of V1838 Aql during the 2013 superoutburstEchevarría,J.Miguel,E. deHernández Santisteban,J. V.Michel,R.Costero,R.Sánchez,L. J.Ruelas-Mayorga,A.Olivares,J.González-Buitrago,D.Jones,J. L.Oskanen,A.Goff,W.Ulowetz,J.Bolt,G.Sabo,R.Hambsch,F.-JSlauson,D.Stein,W.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 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.info:eu-repo/semantics/openAccessUniversidad Nacional Autónoma de México, Instituto de AstronomíaRevista mexicana de astronomía y astrofísica v.55 n.1 20192019-01-01info:eu-repo/semantics/articletext/htmlhttp://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S0185-11012019000100021en |
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| author |
Echevarría,J. Miguel,E. de Hernández Santisteban,J. V. Michel,R. Costero,R. Sánchez,L. J. Ruelas-Mayorga,A. Olivares,J. González-Buitrago,D. Jones,J. L. Oskanen,A. Goff,W. Ulowetz,J. Bolt,G. Sabo,R. Hambsch,F.-J Slauson,D. Stein,W. |
| spellingShingle |
Echevarría,J. Miguel,E. de Hernández Santisteban,J. V. Michel,R. Costero,R. Sánchez,L. J. Ruelas-Mayorga,A. Olivares,J. González-Buitrago,D. Jones,J. L. Oskanen,A. Goff,W. Ulowetz,J. Bolt,G. Sabo,R. Hambsch,F.-J Slauson,D. Stein,W. Extensive photometry of V1838 Aql during the 2013 superoutburst |
| author_facet |
Echevarría,J. Miguel,E. de Hernández Santisteban,J. V. Michel,R. Costero,R. Sánchez,L. J. Ruelas-Mayorga,A. Olivares,J. González-Buitrago,D. Jones,J. L. Oskanen,A. Goff,W. Ulowetz,J. Bolt,G. Sabo,R. Hambsch,F.-J Slauson,D. Stein,W. |
| author_sort |
Echevarría,J. |
| title |
Extensive photometry of V1838 Aql during the 2013 superoutburst |
| title_short |
Extensive photometry of V1838 Aql during the 2013 superoutburst |
| title_full |
Extensive photometry of V1838 Aql during the 2013 superoutburst |
| title_fullStr |
Extensive photometry of V1838 Aql during the 2013 superoutburst |
| title_full_unstemmed |
Extensive photometry of V1838 Aql during the 2013 superoutburst |
| title_sort |
extensive photometry of v1838 aql during the 2013 superoutburst |
| description |
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 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. |
| publisher |
Universidad Nacional Autónoma de México, Instituto de Astronomía |
| publishDate |
2019 |
| url |
http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S0185-11012019000100021 |
| work_keys_str_mv |
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| _version_ |
1756220884980334592 |