Abstract
We present photometric and spectrocsopic observations of SN2018zd, carried out at 9 telescopes, including the 6-m telescope of SAO RAN and the 2.5-m telescope of the Caucasus Mountain Observatory of the Sternberg Astronomical Institute. The dates and magnitudes of maximum brightness and the parameters of the light curves were determined. The photometric characteristics of SN2018zd allow to classify it as a transition event between SNe II-P and SNe II-L. The peculiar features of SN2018zd are sufficiently bright maximum luminosity MV = \( - 18_{{\text{.}}}^{{\text{m}}}0,\) combined with low expansion velocity, large interval between maximum light and the start of exponential tail, slow reddening of colors (U − B), (B − V) after maximum light.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
REFERENCES
V. L. Afanasiev and A. V. Moiseev, Astronomy Letters 31 (3), 194 (2005).
J. P. Anderson, S. González-Gaitán, M. Hamuy, et al., Astrophys. J. 786 (1), article id. 67 (2014).
P. V. Baklanov, S. I. Blinnikov, and N. N. Pavlyuk, Astronomy Letters 31 (7), 429 (2005).
R. Barbon, F. Ciatti, and L. Rosino, Astron. and Astrophys. 72, 287 (1979).
S. I. Blinnikov and O. S. Bartunov, Astron. and Astrophys. 273, 106 (1993).
R. J. Buta, Publ. Astron. Soc. Pacific 94, 578 (1982).
R. J. Buta and W. C. Keel, Monthly Notices Royal Astron. Soc. 487 (1), 832 (2019).
E. Callis, M. Fraser, A. Pastorello, et al., arXiv e-prints arXiv: 2109.12943 (2021).
L. Dessart, D. J. Hillier, R. Waldman, and E. Livne, Monthly Notices Royal Astron. Soc. 433 (2), 1745 (2013).
A. Elmhamdi, I. J. Danziger, N. Chugai, et al., Monthly Notices Royal Astron. Soc. 338 (4), 939 (2003).
A. Henden and U. Munari, Astron. and Astrophys. 458 (1), 339 (2006).
D. Hiramatsu, D. A. Howell, S. D. Van Dyk, et al., Nature Astronomy 5, 903 (2021).
A. Kozyreva, P. Baklanov, S. Jones, et al., Monthly Notices Royal Astron. Soc. 503 (1), 797 (2021).
I. V. Nikolenko, S. V. Kryuchkov, S. I. Barabanov, and I. M. Volkov, INASAN Science Reports 4, 85 (2019).
S. A. Potanin, I. A. Gorbunov, A. V. Dodin, et al., Astronomy Reports 61 (8), 715 (2017).
S. J. Smartt, Publ. Astron. Soc. Australia 32, id. e016 (2015).
R. C. Thomas, P. E. Nugent, and J. C. Meza, Publ. Astron. Soc. Pacific 123 (900), 237 (2011).
D. Y. Tsvetkov, N. N. Pavlyuk, O. V. Vozjakova, et al., Astronomy Letters 47 (5), 291 (2021).
D. Y. Tsvetkov, S. Y. Shugarov, I. M. Volkov, et al., Astronomy Letters 44 (5), 315 (2018).
V. P. Utrobin, Astron. and Astrophys. 461 (1), 233 (2007).
S. Valenti, D. Sand, M. Stritzinger, et al., Monthly Notices Royal Astron. Soc. 448 (3), 2608 (2015).
S. D. Van Dyk, W. Zheng, J. R. Maund, et al., Astrophys. J. 875 (2), article id. 136 (2019).
F. Yuan, A. Jerkstrand, S. Valenti, et al., Monthly Notices Royal Astron. Soc. 461 (2), 2003 (2016).
J. Zhang, X. Wang, V. József, et al., Monthly Notices Royal Astron. Soc. 498 (1), 84 (2020).
J. Zhang, L. Xu, and X. Wang, Astronomer’s Telegram No. 11379, 1 (2018).
ACKNOWLEDGEMENTS
This study was performed using the equipment purchased through the funds of the Development Program of the Moscow State University. The work was supported by the Scientific and Educational School of the Moscow State University “Fundamental and Applied Space Research”. We are grateful to S.V. Zhuyko for support of observations at the Student Observatory of SAI MSU. Observations with the SAO RAS telescopes are supported by the Ministry of Science and Higher Education of the Russian Federation. The renovation of telescope equipment is currently provided within the national project “Science and Universities”. IRAF is distributed by the National Optical Astronomy Observatory, which is operated by AURA under cooperative agreement with the National Science Foundation.
Funding
The work of S. Shugarov was supported by the Slovak Academy of Science (VEGA 2/0030/21, APVV-20-0148). The work of I. Volkov was supported by a scholarship of Slovak Academic Information Agency (SAIA). The work of V. Echeistov was supported by the Ministry of Science and Higher Education of Russian Federation in the framework of financing of large scientific projects of National project “Science”, grant no. 075-15-2020-778.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
The authors declare no conflict of interest.
Rights and permissions
About this article
Cite this article
Tsvetkov, D.Y., Goranskij, V.P., Barsukova, E.A. et al. Observations of Supernova SN 2018zd. Astrophys. Bull. 77, 407–414 (2022). https://doi.org/10.1134/S1990341322040162
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1990341322040162