Table 6.
Binary fraction in dwarf galaxies.
| Galaxy | γ | f | 1σ | 2σ | 3σ | fmode | 1σhdi | 2σhdi | 3σhdi |
|---|---|---|---|---|---|---|---|---|---|
| Scl | 7 | 0.55 | [0.37, 0.72] | [0.18, 0.90] | [0.07, 0.97] | 0.56 | [0.38, 0.72] | [0.20, 0.91] | [0.07, 1.00] |
| Dra | 5 | 0.49 | [0.28, 0.72] | [0.09, 0.92] | [0.01, 0.99] | 0.48 | [0.28, 0.70] | [0.11, 0.93] | [0.03, 1.00] |
| UMi | 4.5 | 0.67 | [0.38, 0.88] | [0.11, 0.98] | [0.01, 0.99] | 0.80 | [0.55, 1.00] | [0.19, 1.00] | [0.03, 1.00] |
| Leo II | 5 | 0.40 | [0.19, 0.62] | [0.05, 0.86] | [0.01, 0.98] | 0.41 | [0.19, 0.60] | [0.10, 0.80] | [0.01, 0.97] |
| Car | 4.5 | 0.25 | [0.07, 0.56] | [0.01, 0.88] | [0, 0.99] | 0.03 | [0.00, 0.38] | [0.00, 0.80] | [0.00, 0.99] |
| Sxt | 6 | 0.55 | [0.25, 0.81] | [0.05, 0.96] | [0.01, 1] | 0.59 | [0.31, 0.86] | [0.11, 1.00] | [0.02, 1.00] |
| Fnx | 6.5 | 0.66 | [0.34, 0.90] | [0.09, 0.98] | [0.01, 1] | 1.00 | [0.53, 1.00] | [0.17, 1.00] | [0.03, 1.00] |
Notes. Binary fraction parameters obtained by using the new methodology presented in this work (and the RLOF approximation). Column 1 lists the galaxies. Column 2 the γ parameter (see Eq. (7)) that returns realistic confidence intervals; Col. 3 the binary fraction resulting from the median of the PDFs. Columns 4–6 the uncertainty range that correspond to 1σ, 2σ, and 3σ confidence levels respectively. Column 7 the binary fraction resulting from the mode of the PDFs; Cols. 8–10 the highest density intervals of the PDFs corresponding to 1σ, 2σ, and 3σ confidence levels, respectively.
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