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Results of Magnetic-Field Measurements with the 6-m BTA Telescope. VII. Observations in 2013

Abstract—The paper provides complete measurement results of the effective longitudinal magnetic field \({{B}_{e}}\) and the radial velocity \({{V}_{R}}\) for 107 targets that are mainly Main-Sequence chemically peculiar stars and standard stars. The spectropolarmetric data were obtained in 2013 with the Main Stellar Spectrograph (MSS) at the 6-m BTA telescope of SAO RAS. Seven new magnetic stars were discovered during the year: HD 16545, HD 34736, HD 36997, HD 37633, HD 128220, HD 220846, and BD +37°431. During 11 observation nights, 296 circularly polarized spectra were obtained. Radial velocities were measured for all the objects, for sixty-four of them—for the first time. Observations of standard magnetic and non-magnetic stars confirm the absence of any significant systematic errors capable of distorting the \({{B}_{e}}\) measurement results. The paper presents comments for measurement results for all the observed stars.

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Notes

  1. https://www.sao.ru/hq/lizm/mss/en/index.html.

  2. Online version of the report at the ImBaSe conference: https://www.eso.org/sci/meetings/2017/ImBaSE2017/Posters/ semenko-poster.pdf.

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ACKNOWLEDGMENTS

The authors are grateful to the Russian Telescope Time Allocation Committee (RTTAC) (https://www.sao.ru/ hq/Komitet/) for allocation of the observation time at the 6‒m BTA telescope. This research has made use of the SIMBAD database, operated at CDS, Strasbourg, France and of the VizieR catalogue access tool, CDS, Strasbourg, France (DOI: 10.26093/cds/vizier). The original description of the VizieR service was published in A&AS 143, 23.

Funding

The authors thank the Russian Science Foundation (RSF) no. 21-12-00147 for financial support of this paper, and IAY expresses gratitude to the project of the Russian Foundation for Basic Research (RFBR) no. 19-32-60007. The reduction of spectroscopic data and the analysis of physical parameters were carried out with the funding from the grant of the President of the Russian Federation for young scientists—candidates of sciences MK-682.2021.6 (AVM). Observations with the SAO RAS telescopes are supported by the Ministry of Science and Higher Education of the Russian Federation (including agreement no. 05.619.21.0016, the unique project identifier RFMEFI61919X0016).

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Romanyuk, I.I., Moiseeva, A.V., Semenko, E.A. et al. Results of Magnetic-Field Measurements with the 6-m BTA Telescope. VII. Observations in 2013. Astrophys. Bull. 77, 94–111 (2022). https://doi.org/10.1134/S1990341322010096

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