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The outburst of the slow classical Nova V612 Sct 2017тезисы доклада
- Авторы: Chochol D., Shugarov S., Hambálek Lubomir
- Сборник: 42nd COSPAR Scientific Assembly
- Серия: COSPAR Meeting
- Том: 42
- Тезисы
- Год издания: 2018
- Первая страница: E1.7-34-18
- Аннотация: We present the results of multicolor photometry and optical spectroscopy of the slow classical nova V612 Sct. Our UBVRI CCD photometry was obtained with 0.18 and 0.6m telescopes and optical echelle spectra (spectral resolution 12000 and 24000) with 0.6 and 1.3m telescopes of the Astronomical Institute of the Slovak Academy of Sciences at the Stará Lesná and Skalnaté Pleso observatories. Our data were completed by the AAVSO International Database and the Astronomical Ring for Access to Spectroscopy (ARAS) data. The nova V612 Sct underwent its outburst in June 2017 and reached the brightness maximum on July 30, 2017. We used the maximum magnitude - rate of decline relations to find the absolute magnitude of the nova at maximum. We estimated the value of colour excess and calculated the distance to the nova. The Hα and Hβ line profiles allowed us to study the structure of the nova V612 Sct expanding envelope. We identified principal and diffuse enhanced P-Cygni absorptions, which originate in two separate expanding shells. We investigated the evolution of radial velocities of both shells and expansion velocities found from the Hα and Hβ emission lines.
- Добавил в систему: Шугаров Сергей Юрьевич