Abstract
Results of a study of the shell of Nova V2659 Cyg based on spectrophotometric observations carried out over a year and a half after its eruption are presented. The physical conditions in the nova shell have been studied. The electron temperature (9000 K) and density (5 × 106 cm−3) in the nebular stage have been estimated, together with the abundances of helium, oxygen, nitrogen, neon, argon, and iron. The abundances of nitrogen, oxygen, neon, and argon are enhanced relative to the solar values. The relative abundances are [N/H] = 2.26 ± 0.25 dex, [O/H] = 1.66 ± 0.35 dex, [Ne/H] = 0.78 ± 0.25 dex, and [Ar/H] = 0.32 ± 0.38 dex. The estimated mass of oxygen and total mass of the emitting shell are ≈1 × 10−4 M ⊙ and ≈3 × 10−4 M ⊙, respectively. In the period of chaotic brightness oscillations, the maximum velocity of the shell expansion derived from the radial velocities of the absorption components of the HI and FeII line profiles increased by ≈400 km/s 41 days after the maximum, and by ≈200 km/s 101 days after the maximum, reaching 1600 km/s in both cases.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
K. Nishiyama, F. Kabashima, G. Masi, F. Nocentini, P. Schmeer, W. Vollmann, U. Munari, G. Cetrulo, D. Degano, F. Castellani, A. Arai, K. Ayani, and M. Fujii, Centr. Bur. Electron. Telegrams, No. 3842, 1 (2014).
E. V. Kazarovets and N. N. Samus, Var. Stars 35, No. 3 (2015).
V. I. Burnashev, Byull. Abastum. Astrofiz. Observ. 59, 83 (1985).
K. Imamura, H. Akazawa, and H. Maehara, Astron. Telegram, No. 6128 (2014).
D. Chochol, N. Ikonnikova, N. Katysheva, S. Shugarov, and I. Volkov, in Living Together: Planets, Host Stars and Binaries, Ed. by S. M. Rucinski, G. Torres, and M. Zejda, ASP Conf. Ser. 496, 237 (2015).
T. Tomov, E. Swierczynski, D. Puchalski, D. Dimitrov, D. Chanliev, A. Kurtenkov, T. Bonev, D. Marchev, and D. Kjurkchieva, Astron. Telegram, No. 6060 (2014).
A. Raj, U. Munari, B.-C. Lee, S. C. Kim, S.-J. Kim, and C.-K. Sim, Astron. Telegram, No. 6181 (2014).
R. A. Shaw and R. J. Dufour, Publ. Astron. Soc. Pacif. 107, 896 (1995).
H. Nussbaumer and P. Storey, Astron. Astrophys. 70, 37 (1978).
G. J. Ferland and G. A. Shields, Astrophys. J. 226, 172 (1978).
L. H. Aller, Physics of Thermal Gaseous Nebulae (Reidel, Dodrecht, 1984).
R. E. S. Clegg, Mon. Not. R. Astron. Soc. 229, 31 (1987).
H. Nussbaumer and P. J. Storey, Astron. Astrophys. 113, 21 (1982).
V. V. Golovatyj, A. Sapar, T. Feklistova, and A. F. Kholtygin, Astron. Astrophys. Trans. 12, 85 (1997).
P. Saizar, S. Starrfield, G. J. Ferland, R. M. Wagner, J. W. Truran, S. J. Kenyon, W. M. Sparks, R. E. Williams, and L. L. Stryker, Astrophys. J. 398, 651 (1992).
J. Andrea, H. Drechsel, and S. Starrfield, Astron. Astrophys. 291, 869 (1994).
V. P. Arkhipova, M. A. Burlak, and V. F. Esipov, Astron. Lett. 28, 100 (2002).
T. N. Tarasova, Astron. Rep. 58, 302 (2014).
T. N. Tarasova, Astron. Lett. 40, 309 (2014).
T. N. Tarasova and A. Skopal, Astron. Lett. 42, 10 (2016).
T. N. Tarasova, Astron. Rep. 57, 95 (2013).
R. E. Williams, Astrophys. J. 426, 279 (1994).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © T.N. Tarasova, 2016, published in Astronomicheskii Zhurnal, 2016, Vol. 93, No. 12, pp. 1029–1044.
Rights and permissions
About this article
Cite this article
Tarasova, T.N. A study of the shell of Nova V2659 Cyg. Astron. Rep. 60, 1052–1066 (2016). https://doi.org/10.1134/S106377291611007X
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S106377291611007X