Abstract
We have modeled the cyclotron spectra and photopolarimetric data of polar CRTS CSS081231 J071126+440405. A series of spectra of the polar were obtained in the intermediate brightness state spanning an orbital period. Modeling spectra allowed us to determine the magnetic field strength in the vicinity of both magnetic poles of the white dwarf: B1 = 38 MG and B2 = 51 MG. We obtained a temperature estimate for the accretion spots near both magnetic poles of the white dwarf. The estimate for the first spot is kT ~ 20–30 keV, whereas the second spot turned out to be cooler by about 10 keV. An analysis of the light curves and polarization of the polar obtained in the low state shows that the interaction of the accretion stream with the star’s atmosphere occurs close (within Δθ = 10◦) to the magnetic pole.
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References
H. Maehara, vsnet-alert 10867 (2009).
A. J. Drake, S. G. Djorgovski, A. Mahabal, et al., Astrophys. J. 696, 870 (2009).
A. D. Schwope, F. Mackebrandt, B. D. Thinius, et al., Astronomische Nachrichten 336, 115 (2015).
N. V. Borisov, M. M. Gabdeev, V. V. Shimansky, et al., Astrophysical Bulletin 71, 101 (2016).
N. V. Borisov, M. M. Gabdeev, and V. L. Afanasiev, Astrophysical Bulletin 71, 95 (2016).
H. Worpel and A. D. Schwope, Astron. and Astrophys. 583, A130 (2015).
V. L. Afanasiev and A. V. Moiseev, Baltic Astronomy 20, 363 (2011).
P. E. Barrett and G. Chanmugam, Astrophys. J. 298, 743 (1985).
A. D. Schwope, K. Beuermann, and H.-C. Thomas, Astron. and Astrophys. 230, 120 (1990).
G. Chanmugam and G. A. Dulk, Astrophys. J. 244, 569 (1981).
R. Mahadevan, R. Narayan, and I. Yi, Astrophys. J. 465, 327 (1996).
S. B. Potter, M. Cropper, K. O. Mason, et al., Monthly Notices Royal Astron. Soc. 285, 82 (1997).
K. Mukai, Monthly Notices Royal Astron. Soc. 232, 175 (1988).
A. Ažusienis and V. Straižys, Sov. Astron. 13, 316 (1969).
R. Ramaty, Astrophys. J. 158, 753 (1969).
G. Chanmugam, P. E. Barrett, K. Wu, and M. W. Courtney, Astrophys. J. Suppl. 71, 323 (1989).
P. P. Eggleton, Astrophys. J. 268, 368 (1983).
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Russian Text © A.I. Kolbin, A.I. Serebryakova, M.M. Gabdeev, N.V. Borisov, 2019, published in Astrofizicheskii Byulleten’, 2019, Vol. 74, No. 1, pp. 86–99.
Based on observations with the 6-m telescope of the Special Astrophysical Observatory of the Russian Academy of Sciences.
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Kolbin, A.I., Serebryakova, N.A., Gabdeev, M.M. et al. Analysis of the Optical Cyclotron Emission of Polar CRTS CSS081231 J071126+440405. Astrophys. Bull. 74, 80–92 (2019). https://doi.org/10.1134/S1990341319010085
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DOI: https://doi.org/10.1134/S1990341319010085