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IRAS 02143+5852: W Vir Cepheid with a dust shellстатья
- Авторы: Ikonnikova N., Burlak M., Shugarov S., Belinskii A., Fedoteva A., Tatarnikov A., Dodin A., Potanin S., Atapin K., Zheltoukhov S.
- Сборник: ASTRONOMY AT THE EPOCH OF MULTIMESSENGER STUDIES. Proceedings of the VAK-2021 conference, Aug 23–28, 2021
- Год издания: 2022
- Место издания: Janus-K 127411, Москва, Учинская ул., д. 1
- Первая страница: 145
- Последняя страница: 147
- DOI: 10.51194/vak2021.2022.1.1.043
- Аннотация: We present the results of multicolor (UBVRcIcJHK) photometry and low resolution spectroscopy of the poorly studied post-AGB candidate IRAS 02143+5852. A Cepheid-like brightness variability with the pulsation period of about 24.8 days and the full peak-to-peak amplitude of 0.9 mag in the V-band was found. The spectral type varies from F3I at maximum to F8I at minimum light. A strong Hα emission line appears on the ascending branch of the light curve. Unlike typical W Vir variables, IRAS 02143+5852 has a significant infrared excess of radiation associated with the presence of a heavy dust envelope around the star. We computed a dust shell model to obtain the parameters of the envelope.
- Добавил в систему: Иконникова Наталия Петровна