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Abstract

This study is based on observations of MWC560 during the last two observational seasons (2020/2021 and 2021/2022). Other than looking for flickering we were interested in following the variability of brightness in the same period. Looking for similarities in the spectra with other types of stars is also of great interest to us because it could help clarify the stellar configuration of such objects. Our observations during the last two observational seasons of MWC560 confirm the absence of flickering. From the similarities of the gathered spectra of XX Oph and MWC560 we assume that the components in XX Oph are a red giant and a white dwarf, which are also surrounded by a common shell.

DOI: https://doi.org/10.2478/asn-2022-0017 | Journal eISSN: 2603-347X | Journal ISSN: 2367-5144
Language: English
Page range: 1 - 9
Published on: Nov 1, 2022
Published by: Konstantin Preslavski University of Shumen
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year

© 2022 Dragomir Marchev, Kiril Stoyanov, Vladislav Marchev, Radoslav Zamanov, Borislav Borisov, Doroteq Vasileva, Teodora Atanasova, Nataliya Pavlova, published by Konstantin Preslavski University of Shumen
This work is licensed under the Creative Commons Attribution 3.0 License.