Table 7
Physical parameters for the RRL variables calculated using the Fourier decomposition parameters and the relations given in the text.
| # | [Fe/H] ZW | [Fe/H] UVES | M V | log (L/L⊙) | log Teff |
|
|
|||||
| RR0 | |||||
|
|
|||||
| V2 | −1.85(2) | −2.17(6) | 0.578(30) | 1.679(12) | 3.804(2) |
| V12 | −2.09(1) | −2.81(3) | 0.522(24) | 1.704(10) | 3.800(2) |
| V22 | −2.04(1) | −2.72(4) | 0.498(27) | 1.709(11) | 3.807(2) |
| V23 | −2.04(3) | −2.58(8) | 0.455(27) | 1.733(11) | 3.797(2) |
| V35 | −1.97(1) | −2.21(3) | 0.399(30) | 1.758(12) | 3.795(2) |
|
|
|||||
| RR1 | |||||
|
|
|||||
| V1 | −2.06(3) | − | 0.521(23) | 1.658(10) | 3.855(2) |
| V6 | −2.06(2) | − | 0.533(21) | 1.655(9) | 3.854(1) |
| V11 | −2.12(1) | − | 0.548(21) | 1.650(9) | 3.852(1) |
| V13 | −2.08(1) | − | 0.524(21) | 1.658(9) | 3.854(1) |
| V15 | −2.05(2) | − | 0.538(21) | 1.653(9) | 3.854(1) |
| V16 | −2.11(1) | − | 0.550(21) | 1.650(9) | 3.851(1) |
| V18 | −2.07(1) | − | 0.511(21) | 1.664(9) | 3.854(1) |
| V20 | −2.08(1) | − | 0.529(21) | 1.658(9) | 3.852(1) |
| V24 | −2.10(2) | − | 0.517(21) | 1.663(9) | 3.852(1) |
| V33 | −2.11(2) | − | 0.526(21) | 1.661(9) | 3.851(1) |
| V37 | −2.10(2) | − | 0.540(21) | 1.654(9) | 3.852(1) |
| V38 | −2.06(2) | − | 0.536(21) | 1.655(9) | 3.853(1) |
| V43 | −2.14(1) | − | 0.531(21) | 1.658(9) | 3.851(1) |
| V44 | −2.07(2) | − | 0.533(21) | 1.656(9) | 3.853(1) |
| V47 | −2.10(2) | − | 0.536(21) | 1.655(9) | 3.852(1) |
Notes. Numbers in parentheses are the 1σ uncertainties on the last decimal place. The values of [Fe/H] UVES listed in this table for RR0 stars are derived using the relation of Nemec et al. (2013). In addition, we note that Smith & Manduca (1983) found [Fe/H] ZW ≈ −2.15 for V2 and [Fe/H] ZW ≈ −2.07 for V25, using the ΔS method (see Sect. 4.1). Errors quoted for log Teff are only statistical and not systematic; we could not calculate systematic errors for log Teff as no errors are given on the empirical coefficients in Eqs. (15) and (16). Errors on MV and log (L/L⊙) for RR1 stars are dominated by the error on the zero point K0 in Eq. (18).
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