Spectroscopic and photometric study of the new eclipsing polar Gaia23cer
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| Autores principales: | , , , , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| author | Kolbin, A. I. Pavlenko, E. P. Kochkina, V. Yu. Vinokurov, A. S. Shugarov, S. Yu. Sosnovskij, A. A. Antonyuk, K. A. Antonyuk, O. I. Pit, N. V. Suslikov, M. V. Galimova, E. K. Borisov, N. V. Burenkov, A. N. Spiridonova, O. I. |
| author_facet | Kolbin, A. I. Pavlenko, E. P. Kochkina, V. Yu. Vinokurov, A. S. Shugarov, S. Yu. Sosnovskij, A. A. Antonyuk, K. A. Antonyuk, O. I. Pit, N. V. Suslikov, M. V. Galimova, E. K. Borisov, N. V. Burenkov, A. N. Spiridonova, O. I. |
| contents | We present the results of the optical study of the new eclipsing polar Gaia23cer. We analyzed the brightness variability of the polar in high ($\langle r \rangle \approx 16.5\mathrm{\,mag}$) and low ($\langle r \rangle \approx 19.2\mathrm{\,mag}$) states. The system has an orbital period $P_{orb} = 102.0665 \pm 0.0015$ min and exhibits deep eclipses with a duration $Δt_{ecl} = 401.30 \pm 0.81$ s. The spectra have a red cyclotron continuum with the Zeeman H$α$ absorption triplet forming in a magnetic field with a strength of $15.2 \pm 1.1$ MG. The source of emission lines has a high radial velocity semiamplitude ($K\approx 450$km/s) and its eclipse lags behind the eclipse of the white dwarf. The mass $M_1=0.79 \pm 0.03 M_{\odot}$ and temperature $T=11350 \pm 650 K$ of the white dwarf have been found by modelling the spectral energy distribution. The eclipse duration corresponds to a donor mass $M_2 = 0.10-0.13M_{\odot}$ and an orbital inclination $i=84.3-87.0^{\circ}$. The donor temperature was estimated to be $T\approx 2900K$ by modelling the elliptical variability and eclipse depth. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_15570 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Spectroscopic and photometric study of the new eclipsing polar Gaia23cer Kolbin, A. I. Pavlenko, E. P. Kochkina, V. Yu. Vinokurov, A. S. Shugarov, S. Yu. Sosnovskij, A. A. Antonyuk, K. A. Antonyuk, O. I. Pit, N. V. Suslikov, M. V. Galimova, E. K. Borisov, N. V. Burenkov, A. N. Spiridonova, O. I. High Energy Astrophysical Phenomena Solar and Stellar Astrophysics We present the results of the optical study of the new eclipsing polar Gaia23cer. We analyzed the brightness variability of the polar in high ($\langle r \rangle \approx 16.5\mathrm{\,mag}$) and low ($\langle r \rangle \approx 19.2\mathrm{\,mag}$) states. The system has an orbital period $P_{orb} = 102.0665 \pm 0.0015$ min and exhibits deep eclipses with a duration $Δt_{ecl} = 401.30 \pm 0.81$ s. The spectra have a red cyclotron continuum with the Zeeman H$α$ absorption triplet forming in a magnetic field with a strength of $15.2 \pm 1.1$ MG. The source of emission lines has a high radial velocity semiamplitude ($K\approx 450$km/s) and its eclipse lags behind the eclipse of the white dwarf. The mass $M_1=0.79 \pm 0.03 M_{\odot}$ and temperature $T=11350 \pm 650 K$ of the white dwarf have been found by modelling the spectral energy distribution. The eclipse duration corresponds to a donor mass $M_2 = 0.10-0.13M_{\odot}$ and an orbital inclination $i=84.3-87.0^{\circ}$. The donor temperature was estimated to be $T\approx 2900K$ by modelling the elliptical variability and eclipse depth. |
| title | Spectroscopic and photometric study of the new eclipsing polar Gaia23cer |
| topic | High Energy Astrophysical Phenomena Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2409.15570 |