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Спектр оптического транзиента в галактике NGC 5775статья
- Авторы: Барсукова Е.А., Фабрика С.Н., Горанский В.П., Валеев А.Ф.
- Журнал: Переменные звезды
- Том: 32
- Номер: 2
- Год издания: 2012
- Первая страница: 1
- Последняя страница: 7
- Аннотация: On 2012 April 25, we acquired spectra and images of NGC 5775 OT PSN J14535395+0334049, classified as a calcium transient similar to NGC 300 OT and SN 2008S in NGC 6496. The Russian 6-m telescope and the SCORPIO focal reducer were used. The spectral range was 4070 - 5830 A and the spectral resolution, 5.4 A. The spectrum is noisy and shows a continuum with an H_{beta} emission line. The line has a two-component profile containing a narrow component, with FWHM 300 km/s, and a broad one, with FWHM 4000 km/s. The object is located at the front of the edge-on galaxy disk, it is weakly reddened. We estimate its M_V as -13.7m on the date of observation, typical of a calcium-type supernova impostor.
- Добавил в систему: Горанский Виталий Петрович