Resolving the mass transfer in the symbiotic recurrent nova T Coronae Borealis

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Table 1

Orbital parameters for the giant in the T CrB system.

Parameters	2013-22 (1)	1997-99 (2)
P [d]	227.58 ± 0.03	227.57 ± 0.01
e	0.009 ± 0.003	0.0
K₁ [km/s]	23.94 ± 0.13	23.89 ± 0.17
V_γ [km/s]	−28.47 ± 0.05	−27.79 ± 0.13
a₁sini [au]	0.500 ± 0.003	0.488 ± 0.004
f (m) [M_⊙]	0.324 ± 0.005	0.322 ± 0.007
T₀ [HJD]	2 455 825.44 ± 0.08	2 447 861.73 ± 0.27
${T^{'}}_{0} [HJD]$ ${{T'}_0}[{\rm{HJD}}]$	–	2 455 826.68 ± 9.45
R²	99.91%	–

Notes. (1) This work; (2) Fekel et al. (2000). P is the orbital period, e the eccentricity, K₁ the semi-amplitude of the giant’s RV curve, V_γ the center-of-mass velocity, a₁ the semi-major axis of the orbit of the giant around the center-of-mass of the system, i the inclination, f(m) the mass function, T₀ is the epoch of inferior conjunction, ${T^{'}}_{0}$ ${{T'}_0}$ is the epoch of inferior conjunction of (2) extrapolated to the epoch of (1), and R² is the regression coefficient.

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