Table 1
95% confidence-level, gamma-ray flux upper limits for bow shocks of runaway stars.
| Star | l | b | TS | ϵγF(ϵγ)[10-6 MeV cm-2 s-1] | |||
| [°] | [°] | 0.1–0.74 | 0.74–5.5 | 5.5–41 | 41–300 [GeV] | ||
|
|
|||||||
| HIP 2036 | 120.9137 | +09.0357 | 0 | 0.61 | 0.13 | 0.30 | 1.44 |
| HIP 2599 | 120.8361 | +00.1351 | 1 | 0.99 | 0.55 | 0.39 | 0.99 |
| HIP 11891 | 134.7692 | +01.0144 | 7 | 1.20 | 0.60 | 0.79 | 1.61 |
| HIP 16518 | 156.3159 | −16.7535 | 0 | 0.93 | 0.22 | 0.21 | 1.29 |
| HIP 17358 | 150.2834 | −05.7684 | 0 | 0.56 | 0.24 | 0.24 | 1.26 |
| HIP 22783∗ | 144.0656 | +14.0424 | 0 | 0.82 | 0.15 | 0.19 | 0.72 |
| HIP 24575 | 172.0813 | −02.2592 | 0 | 0.21 | 0.19 | 0.28 | 0.96 |
| HIP 25923 | 210.4356 | −20.9830 | 0 | 1.31 | 0.13 | 0.20 | 1.08 |
| HIP 26397 | 174.0618 | +01.5808 | 0 | 0.64 | 0.59 | 0.34 | 1.31 |
| HIP 28881 | 164.9727 | +12.8935 | 0 | 0.24 | 0.18 | 0.37 | 0.83 |
| HIP 29276 | 263.3029 | −27.6837 | 0 | 0.70 | 0.17 | 0.17 | 1.24 |
| HIP 31766 | 210.0349 | −02.1105 | 3 | 0.90 | 0.61 | 0.45 | 1.66 |
| HIP 32067 | 206.2096 | +00.7982 | 8 | 1.28 | 0.91 | 0.51 | 1.04 |
| HIP 34536 | 224.1685 | −00.7784 | 2 | 0.51 | 0.65 | 0.45 | 1.95 |
| HIP 38430 | 243.1553 | +00.3630 | 9 | 1.10 | 0.86 | 0.45 | 1.16 |
| HIP 62322 | 302.4492 | −05.2412 | 0 | 0.32 | 0.19 | 0.44 | 1.12 |
| HIP 72510 | 318.7681 | +02.7685 | 0 | 0.94 | 0.43 | 0.33 | 0.93 |
| HIP 75095 | 322.6802 | +00.9060 | 0 | 0.40 | 0.26 | 0.52 | 1.03 |
| HIP 77391 | 330.4212 | +04.5928 | 1 | 1.44 | 0.48 | 0.56 | 1.13 |
| HIP 78401∗ | 350.0969 | +22.4904 | 0 | 0.57 | 0.15 | 0.34 | 1.06 |
| HIP 81377∗ | 006.2812 | +23.5877 | 5 | 0.72 | 0.60 | 0.57 | 1.16 |
| HIP 82171 | 329.9790 | −08.4736 | 0 | 1.04 | 0.30 | 0.26 | 1.46 |
| HIP 88652 | 015.1187 | +03.3349 | 0 | 3.00 | 0.28 | 0.29 | 1.35 |
| HIP 92865 | 041.7070 | +03.3784 | 0 | 0.31 | 0.25 | 0.31 | 1.97 |
| HIP 97796∗ | 056.4824 | −04.3314 | 0 | 1.02 | 0.36 | 0.37 | 1.00 |
| BD+43°3654 | 082.4100 | +02.3254 | 0 | 1.00 | 0.33 | 1.05 | 1.19 |
| HIP 114990 | 112.8862 | +03.0998 | 1 | 0.94 | 0.43 | 0.47 | 0.88 |
Notes. For the 4 bow shocks indicated with stars, the limits were calculated for spatial emission profiles obtained from the WISE infrared emission intensity; for the remaining 23 bow shocks the limits were calculated for a point-like source at the position of the runaway star; see text for details. All bow shock candidates are listed in the E-BOSS catalogue. We calculated upper limits in four logarithmically equally spaced energy bins covering the energy range from 100 MeV to 300 GeV. l and b denote the Galactic coordinates of the star. The TS values were calculated assuming a power-law spectrum with photon index of 2 over the whole energy range. ϵγF(ϵγ) corresponds to the integral energy flux upper limit within the energy range provided (GeV) assuming a power-law spectrum of gamma-ray emission with photon index α = 2 within this energy band.
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