Open Access
Table 1
Orbital elements for HR 7275.
| Parameter | SB2 solution, Spot-corrected | SB1 solution, Spot-corrected | de Medeiros & Udry (1999) | Osten & Saar (1998) |
|---|---|---|---|---|
| Porb (d) | 28.586019 ± 0.000015 | 28.5903 ± 0.0004 | 28.58973 ± 0.00002 | |
| K1 (kms−1) | 40.485 ± 0.006 | 40.428 ± 0.003 | 40.74 ± 0.16 | 40.15 ± 0.01 |
| K2 (kms−1) | 44.715 ± 0.029 | ... | 45.05 ± 0.69 | 45.82 ± 0.01 |
| γ (kms−1) | 4.902 ± 0.012 | 5.202 ± 0.005 | 4.11 ± 0.14 | 5.97 ± 0.19 |
| T0 (BJD) | 2459773.74 ± 0.12 | 2461403.02 ± 0.08 | 2448976.78 ± 0.05 | 2431043.908 ± 0.01 |
| e | 0.005 ± 0.001 | 0.0105 ± 0.0007 | 0.010 ± 0.004 | 0 |
| ω1 (deg) | 239.46 ± 3.25 | 368.57 ± 1.52 | 0.00 ± 31.27 | ... |
| ω2 (deg) | 59.46 ± 3.25 | ... | ... | ... |
| a1 sin i (Mkm) | 15.933 ± 0.023 | 15.890 ± 0.011 | 16.016 ± 0.064 | 15.784 ± 0.004 |
| a2 sin i (Mkm) | 17.545 ± 0.021 | ... | ... | 18.014 ± 0.004 |
| M1 sin3 i(M⊙) | 0.9585 ± 0.0029 | ... | 0.9843 ± 0.0247 | 1.0070 ± 0.0001 |
| M2sin3 i (M⊙) | 0.8702 ± 0.0028 | ... | 0.8901 ± 0.0186 | 0.8823 ± 0.0001 |
| No. of obs. | 176 | 176 | 28 | 28 |
| Error of obs. of | ||||
| unit weight (km s−1) | 0.490 | 0.137 | 0.673 | ... |
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