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Table 3

Chromospheric radius Rchromo estimated from shock amplitude listed in Table A.1 in the case of the calcium line λ8542.

Star Ashock (km s−1) R (R) Rchromo (%R)
TT Aql 82.9 ± 1.1 82.0 ± 1.0 43.2 ± 1.1
RZ Vel 80.1 ± 1.3 107.4 ± 1.6 47.2 ± 1.5
WZ Car 83.2 ± 0.4 116.7 ± 1.8 50.9 ± 1.0
VZ Pup 69.3 ± 0.6 117.2 ± 1.8 42.5 ± 1.0
T Mon 82.4 ± 0.8 130.2 ± 2.2 53.1 ± 1.4
U Car 59.1 ± 0.4 167.0 ± 3.2 42.7 ± 1.1
RS Pup 81.3 ± 1.7 174.5 ± 3.5 60.0 ± 2.5
V1496 Aql 71.3 ± 3 238.3 ± 5.5 60.72 ± 4.0

Notes. Rchromo is given relative to the mean stellar radius provided by the PR relation from Gallenne et al. (2017). Calculation assumes Δϕ = 0.250 for Schwarzschild mechanism duration. Mean radiusfrom PR relation: log R = (0.684 ± 0.007)(log P − 0.517) + (1.489 ± 0.002).

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