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Table 2.
M33 radio and γ-ray data.
| Frequency | Energy flux | Reference | Frequency | Energy flux | Reference | |
|---|---|---|---|---|---|---|
| log(ν/Hz) | 10−14 erg cm−2 s−1 | log(ν/Hz) | 10−14 erg cm−2 s−1 | |||
| 7.330 | 0.150 ± 0.064 | Israel et al. (1992) | 9.149 | 4.508 ± 0.705 | Dennison et al. (1975) | |
| 7.408 | 0.307 ± 0.103 | Israel et al. (1992) | 9.151 | 4.508 ± 0.084 | Huchtmeier (1975) | |
| 7.490 | 0.185 − 0.371 | Israel et al. (1992) | 9.152 | 4.260 ± 0.568 | Buczilowski (1988) | |
| 7.760 | 0.431 ± 0.144 | Israel et al. (1992) | 9.236 | 4.644 ± 0.459 | Buczilowski (1988) | |
| 7.848 | 0.211 − 0.845 | Israel et al. (1992) | 9.431 | 6.468 ± 2.695 | Dennison et al. (1975) | |
| 8.180 | 0.848 ± 0.273 | Israel et al. (1992) | 9.432 | 4.593 ± 0.459 | Buczilowski (1988) | |
| 8.514 | 1.844 ± 0.261 | Israel et al. (1992) | 9.677 | 5.225 ± 0.808 | Buczilowski (1988) | |
| 8.785 | 2.682 ± 0.366 | Israel et al. (1992) | 9.686 | 6.790 ± 1.455 | von Kap-herr et al. (1981) | |
| 8.250 | 1.780 ± 0.712 | Leslie 1960, cited in Israel et al. (1992) | 10.029 | 5.885 ± 1.605( ⋆ ) | Buczilowski (1988) | |
| 8.502 | 2.449 ± 0.382 | Terzian & Pankonin (1972) | – | |||
| 8.611 | 2.448 ± 0.245 | Braccesi et al. (1967) | 10−13 erg cm−2 s−1 | |||
| 8.782 | 3.636 ± 0.364 | Terzian & Pankonin (1972) | – | |||
| 8.875 | 4.950 ± 1.350 | Venugopal (1963) | 22.790 ± 0.407 | < 7.5 | Xi et al. (2020) | |
| 8.875 | 3.600 ± 1.875 | DeJong (1965) | 23.286 ± 0.704 | 2.034 ± 0.066 | Xi et al. (2020) | |
| 8.925 | 4.547 ± 1.010 | Buczilowski (1988) | 24.082 ± 0.704 | 1.556 ± 0.056 | Xi et al. (2020) | |
| 9.146 | 5.740 ± 2.100 | Venugopal (1963) | 24.860 ± 0.704 | 1.045 ± 0.068 | Xi et al. (2020) | |
| 9.149 | 4.512 ± 2.397 | DeJong (1965) | 25.684 ± 0.704 | < 10 | Xi et al. (2020) |
Notes. ( ⋆ )Considered to be a lower limit (Israel et al. 1992).
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