Supernova 2018aoq and a distance to Seyfert galaxy NGC 4151

D. Y. Tsvetkov, P. V. Baklanov, M. S. Potashov, V. L. Oknyansky, K. M. Mikailov, N. A. Huseynov, I. A. Alekberov, O. V. Khalilov, N. N. Pavlyuk, V. G. Metlov, I. M. Volkov, S. Y. Shugarov

Результат исследования: Научные публикации в периодических изданияхстатья

1 Цитирования (Scopus)

Аннотация

We present optical photometric observations of SN 2018aoq from 2 to 100 d after explosion, and 7 spectra at epochs from 11 to 71 d. The light curves and spectra are typical for SNe II-P. As previously reported, SN 2018aoq appears to be of intermediate brightness between subluminous and normal SNe II-P. SN 2018aoq was discovered in Seyfert galaxy NGC 4151, for which the distance is uncertain. We utilized the expanding photosphere method using three sets of filter combinations and velocities derived from the absorption minima of Fe ii lines and obtained a distance of 20.0 ± 1.6 Mpc. The standard candle method applied to SN 2018aoq yields a distance of 16.6 ± 1.1 Mpc. Both values are consistent with the distance measurements for NGC 4151 based on geometric method.

Язык оригиналаанглийский
Страницы (с-по)3001-3006
Число страниц6
ЖурналMonthly Notices of the Royal Astronomical Society
Том487
Номер выпуска3
DOI
СостояниеОпубликовано - 31 мая 2019

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  • Цитировать

    Tsvetkov, D. Y., Baklanov, P. V., Potashov, M. S., Oknyansky, V. L., Mikailov, K. M., Huseynov, N. A., Alekberov, I. A., Khalilov, O. V., Pavlyuk, N. N., Metlov, V. G., Volkov, I. M., & Shugarov, S. Y. (2019). Supernova 2018aoq and a distance to Seyfert galaxy NGC 4151. Monthly Notices of the Royal Astronomical Society, 487(3), 3001-3006. https://doi.org/10.1093/mnras/stz1474