Results are reported from multicolor photometric observations of the SU UMa-type dwarf nova 1RXS J003828.7+250920 in 2011, roughly a year after the super-outburst of 2010, and in 2012, when the object was in a quiescent state and underwent an outburst. Partial eclipses were observed in the system with depths of about 0m.6 in all color bands, both in the quiescent state and during the outburst. The orbital period of the system, 0.09451001(4) days, was determined for the first time and identifies the object as a dwarf nova in the “gap” in the orbital-period distribution of the cataclysmic variables. The ephemerides for the middle of the eclipse are determined. The average light curve profile resembles the “classical” light curve of U Gem. The orbital periodicity in the brightness variations of 1RXS J003828.7+250920 coexists with another signal with a period of 0.092 days, which we interpret as a period of negative superhumps. The color temperatures derived from the color indices may indicate multicomponent emission from 1RXS J003828.7+250920 by sources which appear to be hot and cold parts of the accretion disk and a hot spot on the accretion disk.
Similar content being viewed by others
References
B. Warner, Cataclysmic Variable Stars, Cambridge University Press, Cambridge (1995).
R. Whitehurst, Mon. Not. Roy. Astron. Soc. 232, 35 (1988).
M. Hirose and Y. Osaki, Publ. Astron. Soc. Pacif. 42, 135 (1990).
S. H. Lubow, Astrophys. J. 245, 274 (1981).
Y. Osaki, Publ. Astron. Soc. Pacif. 108, 39 (1996).
>E. P. Pavlenko, et al., Publ. Astron. Soc. Japan 66, 111 (2014).
E. P. Pavlenko, et al., Astron. Rep. 54, 1, 6 (2010).
T. Oshima, T. Kato, E. Pavlenko, et al., Publ. Astron. Soc. Japan 64L, 3 (2012).
M. M. Montgomery and E. L. Martin, Astrophys. J. 722, 989 (2010).
T. Kato, et al., Publ. Astron. Soc. Japan 67, 105 (2015).
N. A. Katysheva and E. P. Pavlenko, Astrophysics 46, 114 (2003).
C. Knigge, Mon. Not. Roy. Astron. Soc. 373, 484 (2006).
R. Kraft, Astrophys. J. 135, 408 (1962).
F. Verbunt and C. Zwaan, Astron. Astrophys. 100, L7 (1981).
L. Schmidtobreick and C. Tappert, Astron. Astrophys. 455, 255 (2006).
T. Kato, et al., Publ. Astron. Soc. Japan 10 (2016).
T. Kato, et al., Publ. Astron. Soc. Japan 64, 21 (2012).
A. Drake, et al., Astrophys. J. 696, 870 (2009).
T. Kato, et al., Publ. Astron. Soc. Japan 65, 23 (2013).
E. P. Pavlenko, T. Kato, O. I. Antonyuk, et al., Astrophysics, 54, 483 (2011).
T. S. Khruzina, P. Yu. Golysheva, N. A. Katysheva, et al., Astron. zh. 92, 323 (2015) [Aston. Rep. 59, 288 (2015)].
Ya. Pel’t, Frequency analysis of astronomical time series, Valgus, Tallin (1980).
T. Kato and Y. Osaki, Publ. Astron. Soc. Japan 65, 115 (2013).
T. Kato, B. Monard, F.-J. Hambsch, et al., Publ. Astron. Soc. Japan 65L, 11 (2013).
Y. Osaki and T. Kato, Publ. Astron. Soc. Japan 65, 95 (2013).
E. Pavlenko, O. Antoniuk, K. Antoniuk, et al., AIPC 1273, 320 (2010).
T. Ohshima, et al., Publ. Astron. Soc. Japan 66, 67 (2014).
D. J. Schlegel, D. P. Finkbeiner, and M. Davis, Astrophys. J. 500, 525 (1998).
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated from Astrofizika, Vol. 59, No. 3, pp. 341-358 (August 2016).
Rights and permissions
About this article
Cite this article
Pavlenko, E.P., Sosnovskij, A.A., Katysheva, N.A. et al. Eclipsing SU UMa-Type Dwarf Nova 1RXS J003828.7+250920 During thE “Period Gap”. I. Multiperiodicity and Color Features in 2011-2012. Astrophysics 59, 304–320 (2016). https://doi.org/10.1007/s10511-016-9437-6
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10511-016-9437-6