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arXiv · 2504.06029

Red giant component of the recurrent nova T Coronae Borealis

R. K. Zamanov·D. Marchev·V. Marchev·M. Moyseev·G. Yordanova·J. Marti·M. F. Bode·K. A. Stoyanov
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Abstract

We performed simultaneous V band photometry and spectroscopic observations of the recurrent nova T CrB and estimate the V band magnitude of the red giant. We find for the red giant of T CrB apparent and absolute V-band magnitudes m_V = 10.17 +/- 0.06 and M_V = +0.14 +/- 0.08, respectively. At the maximum of the ellipsoidal variation when these values are obtained, its absolute V-band magnitude is similar but fainter than the typical M4/5III giants. The data are available on : zenodo.org/records/15174720

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R. K. Zamanov, D. Marchev, V. Marchev, M. Moyseev, G. Yordanova, J. Marti, M. F. Bode, K. A. Stoyanov. 2025-04-08. Red giant component of the recurrent nova T Coronae Borealis. https://arxiv.org/abs/2504.06029

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