| Autor: |
S. Zheltoukhov, K. Atapin, S. Potanin, A. Dodin, A. Tatarnikov, A. Fedoteva, A. Belinskii, S. Shugarov, M. Burlak, N. Ikonnikova |
| Rok vydání: |
2022 |
| Zdroj: |
ASTRONOMY AT THE EPOCH OF MULTIMESSENGER STUDIES. Proceedings of the VAK-2021 conference, Aug 23–28, 2021. |
| DOI: |
10.51194/vak2021.2022.1.1.043 |
| Popis: |
We present the results of multicolor (U BV R C I C JHK) photometry and low resolution spectroscopy of the poorly studiedpost-AGB candidate IRAS 02143+5852. A Cepheid-like brightness variability with the pulsation period of about 24.8 daysand the full peak-to-peak amplitude of 0.9 mag in the V -band was found. The spectral type varies from F3I at maximumto F8I at minimum light. A strong Hα emission line appears on the ascending branch of the light curve. Unlike typicalW Vir variables, IRAS 02143+5852 has a significant infrared excess of radiation associated with the presence of a heavydust envelope around the star. We computed a dust shell model to obtain the parameters of the envelope. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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