Table 2.
Orbital elements of quadruple systems from LTTE solutions.
| ID | PEB | P2 | aEB ⋅ sin(i2) | e2 | τ2 | ω2 | f(m) |
|---|---|---|---|---|---|---|---|
| [days] | [days] | [R⊙] | [days] | [°] | [M⊙] | ||
| OGLE-BLG-ECL-130692AB | 0.419959 |
 |
 |
 |
 |
 |
0.19 |
| 130692CD | 0.5810375 |
 |
0.12 | ||||
| OGLE-BLG-ECL-145467AB | 3.304929 |
 |
 |
 |
 |
 |
1.08 |
| 145467CD | 4.909654 |
 |
1.21 | ||||
| OGLE-BLG-ECL-246476AB | 2.641367 |
 |
 |
 |
 |
 |
0.02 |
| 246476CD | 0.411444 |
 |
0.02 | ||||
| OGLE-BLG-ECL-259166AB | 0.726122 |
 |
 |
 |
 |
 |
0.16 |
| 259166CD | 0.385391 |
 |
0.17 | ||||
| OGLE-BLG-ECL-297270AB | 1.157091 |
 |
 |
 |
 |
 |
0.42 |
| 297270CD | 0.503959 |
 |
0.45 | ||||
Notes. PEB and P2 stand for the periods of the EBs and the outer orbital period based on the LTTE solution, respectively. The aEB sin i2 is the projected semi-major axis of the LTTE orbit, while e2, τ2, and ω2 stand for the eccentricity, the time of periastron passage, and the argument of periastron, respectively. The last column presents the calculated mass function of the tertiary component derived from the LTTE solutions as described in Sect. 2.6. The identification of AB refers to the OGLE EB and CD the newly found ‘background’ EB.
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