|
ИСТИНА |
Войти в систему Регистрация |
ИСТИНА ПсковГУ |
||
TCP J07222683+6220548: A New AM CVn Type System with Infrequent Outburstsстатья
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 1 октября 2025 г.
- Авторы: Tarasenkov Alexander, Sokolovsky Kirill, Dodin Alexandr, Chernyshenko Oxana, Korotkiy Stanislav, Strakhov Ivan, Burlak Marina, Naroenkov Sergey, Hambsch Franz-Josef, Tordai Tamás, Itoh Hiroshi, Sano Yasuo, Tampo Yusuke, Ferdinand
- Журнал: Research in Astronomy and Astrophysics
- Том: 25
- Номер: 7
- Год издания: 2025
- Издательство: IOP Publishing
- Местоположение издательства: [Bristol, UK], England
- Первая страница: 1
- Последняя страница: 14
- Номер статьи: 075017
- DOI: 10.1088/1674-4527/adddec
- Аннотация: We present the discovery of TCP J07222683+6220548, a new ultracompact binary system of the AM CVn type. This system was first identified displaying a ΔV = 7.6 mag outburst on 2025-01-20.9416 UTC by the New Milky Way wide-field survey for transients and later independently detected by ASAS-SN and ZTF. The outburst peaked at Vmax = 12.45 and lasted for seven days, followed by a series of rebrightenings. No previous outbursts are found in archival data. Positive superhumps with a period of 0.032546 ± 0.000084 day (46.87 ± 0.12 minutes), barely detectable during the main outburst, became clearly visible during the first rebrightening that lasted from day 18 to day 24 after the initial outburst. No convincing change in the superhump period was detected. Dense time-series photometry follow-up by a pair of 0.5 m INASAN robotic telescopes, together with VSNET and AAVSO observers, was essential for identifying TCP J07222683+6220548 as an AM CVn system and triggering confirmation spectroscopy with the 2.5 m CMO SAI telescope. Some outbursting AM CVn systems lacking such detailed follow-up may remain unrecognized among the newly discovered cataclysmic variable candidates.
- Добавил в систему: Тарасенков Александр Николаевич
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|