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

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

School of Physics and Astronomy

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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 P_orb= 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 language	English
Pages (from-to)	21-30
Journal	Revista Mexicana de Astronomía y Astrofísica
Volume	55
Issue number	1
Publication status	Published - 1 Apr 2019

Keywords

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

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Echevarría, J., de Miguel, E., 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. (2019). Extensive photometry of V1838 Aql during the 2013 superoutburst. Revista Mexicana de Astronomía y Astrofísica, 55(1), 21-30. https://arxiv.org/abs/1810.09864

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title = "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 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.",

keywords = "Techniques: photometric, Stars: novae, Cataclysmic variables, Stars: dwarf novae, Stars: individual: V1838 Aql",

author = "J. Echevarr{\'i}a and {de Miguel}, E. and {Hern{\'a}ndez Santisteban}, {J. V.} and R. Michel and R. Costero and S{\'a}nchez, {L. J.} and A. Ruelas-Mayorga and J. Olivares and D. Gonz{\'a}lez-Buitrago and Jones, {J. L.} and A. Oskanen and W. Goff and J. Ulowetz and G. Bolt and R. Sabo and F.-J. Hambsch and D. Slauson and W. Stein",

year = "2019",

month = apr,

day = "1",

language = "English",

volume = "55",

pages = "21--30",

journal = "Revista Mexicana de Astronom{\'i}a y Astrof{\'i}sica",

issn = "0185-1101",

publisher = "Universidad Nacional Autonoma de Mexico",

number = "1",

}

Echevarría, J, de Miguel, E, Hernández Santisteban, JV, Michel, R, Costero, R, Sánchez, LJ, Ruelas-Mayorga, A, Olivares, J, González-Buitrago, D, Jones, JL, Oskanen, A, Goff, W, Ulowetz, J, Bolt, G, Sabo, R, Hambsch, F-J, Slauson, D & Stein, W 2019, 'Extensive photometry of V1838 Aql during the 2013 superoutburst', Revista Mexicana de Astronomía y Astrofísica, vol. 55, no. 1, pp. 21-30. <https://arxiv.org/abs/1810.09864>

TY - JOUR

T1 - Extensive photometry of V1838 Aql during the 2013 superoutburst

AU - Echevarría, J.

AU - de Miguel, E.

AU - Hernández Santisteban, J. V.

AU - Michel, R.

AU - Costero, R.

AU - Sánchez, L. J.

AU - Ruelas-Mayorga, A.

AU - Olivares, J.

AU - González-Buitrago, D.

AU - Jones, J. L.

AU - Oskanen, A.

AU - Goff, W.

AU - Ulowetz, J.

AU - Bolt, G.

AU - Sabo, R.

AU - Hambsch, F.-J.

AU - Slauson, D.

AU - Stein, W.

PY - 2019/4/1

Y1 - 2019/4/1

N2 - 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.

AB - 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.

KW - Techniques: photometric

KW - Stars: novae

KW - Cataclysmic variables

KW - Stars: dwarf novae

KW - Stars: individual: V1838 Aql

M3 - Article

SN - 0185-1101

VL - 55

SP - 21

EP - 30

JO - Revista Mexicana de Astronomía y Astrofísica

JF - Revista Mexicana de Astronomía y Astrofísica

IS - 1

ER -

Extensive photometry of V1838 Aql during the 2013 superoutburst

Abstract

Keywords

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