Table 5
Estimated maximum VHE γ-ray luminosities of the target microquasars, which would still be consistent with a non-detection given the flux upper limits presented in Table 4.
| Target | Maximum distance estimate | Ethresh | Luminosity above Ethresh |
|---|---|---|---|
| [kpc] | [GeV] | [erg s−1] | |
| GRS 1915+105 | 10.6 | 562 | <2.3 × 1034 |
| Cir X-1 | 10.2 | 562 | <3.4 × 1034 |
| V4641 Sgr | 6.9 | 237 | <2.5 × 1034 |
Notes. Source distances correspond to the largest estimate that was found in the literature (see Sect. 2). The energy threshold of Cherenkov telescope arrays increases with observational zenith angle.
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