Open Access
Table C.1.
Spectral Energy Distribution for M87 during the 2018 EHT-MWL campaign.
| Observatory | Band | ν | Angular Scale(1) | Obs. date | Flux | ν Fν | Sect. |
|---|---|---|---|---|---|---|---|
| [Hz] | [″] | [MJD] | [Jy] | [×10−12 erg cm−2 s−1] | |||
| VERA | 22 GHz | 2.2 × 1010 | 1 × 10−3 | 2018-04-26 / 58234 | 1.12 ± 0.11 | 0.246 ± 0.024 | 2.1.1. |
| EAVN/KaVA | 22 GHz | 2.2 × 1010 | 1 × 10−3 | 2018-05-08 / 58246 | 1.01 ± 0.10 | 0.232 ± 0.023 | 2.1.2. |
| EAVN/KaVA | 43 GHz | 4.3 × 1010 | 1 × 10−3 | 2018-04-21 / 58229 | 0.94 ± 0.09 | 0.404 ± 0.039 | 2.1.2. |
| VLBA | 24 GHz | 2.4 × 1010 | 6 × 10−4 | 2018-04-27 / 58235 | 0.88 ± 0.09 | 0.211 ± 0.021 | 2.1.3. |
| VLBA | 43 GHz | 4.3 × 1010 | 4 × 10−4 | 2018-04-27 / 58235 | 0.59 ± 0.06 | 0.254 ± 0.024 | 2.1.3. |
| Global VLBI | 43 GHz | 4.3 × 1010 | 2.5 × 10−4 | 2018-02-01 / 58150 | 0.65 ± 0.06 | 0.279 ± 0.027 | 2.1.6. |
| GMVA+ALMA | 86 GHz | 8.6 × 1010 | 2.0 × 10−4 | 2018-04-14 / 58222 | 0.53 ± 0.10 | 0.458 ± 0.086 | 2.1.5. |
| KVN | 86.8 GHz | 8.68 × 1010 | 1.0 × 10−3 | 2018-04-19 / 58227 | 0.93 ± 0.09 | 0.807 ± 0.078 | 2.1.5. |
| KVN | 129.3 GHz | 1.29 × 1011 | 1.0 × 10−3 | 2018-04-19 / 58227 | 0.65 ± 0.20 | 0.84 ± 0.26 | 2.1.5. |
| ALMA | 93 GHz | 9.3 × 1010 | 2.4 | 2018-04-15 / 58223 | 1.41 ± 0.07 | 1.31 ± 0.07 | 2.1.7. |
| ALMA | 221 GHz | 2.21 × 1011 | 0.85 | 2018-04-21 / 58229 | 1.10 ± 0.11 | 2.43 ± 0.24 | 2.1.7. |
| SMA | 221 GHz | 2.21 × 1011 | ≃3.0 | 2018-04-22 / 58230 | 1.33 ± 0.07 | 2.94 ± 0.15 | 2.1.8. |
| EHT | 230 GHz | 2.3 × 1011 | 2 × 10−5 | 2018-04-21 / 58229 | 0.5–1.0 | 1.15 – 2.30 | 1. |
| Kanata | 1250 nm | 2.4 × 1014 | ≃10 | 2018-04-21 / 58229 | < 2.16 × 10−3 | < 5.18 | 2.2.1. |
| Kanata | 634.9 nm | 4.7 × 1014 | ≃10 | 2018-04-21 / 58229 | < 1.05 × 10−3 | < 4.96 | 2.2.1. |
| HST | 236.0 nm | 1.27 × 1015 | ≃0.1 | 2018-07-30/58329 | (1.51 ± 0.77)×10−4 | 1.92 ± 0.96 | 2.2.3. |
| AstroSat-UVIT | 173-135 nm | 1.95 × 1015 | ≃300 | 2018-04-21 / 58229 | < 1.05 × 10−3 | < 5.13 | 2.2.4. |
| AstroSat-SXT | 0.2-1 keV | 1.21 × 1017 | ≃900 | 2018-04-21 / 58229 | < 7.75 × 10−6 | < 15.0 | 2.2.4. |
| AstroSat-SXT | 1-3 keV | 4.84 × 1017 | ≃900 | 2018-04-21 / 58229 | < 3.01 × 10−6 | < 14.6 | 2.2.4. |
| AstroSat-SXT | 3-8 keV | 7.26 × 1017 | ≃900 | 2018-04-21 / 58229 | < 1.18 × 10−7 | < 14.3 | 2.2.4. |
| Swift-UVOT | 546.8 nm | 5.48 × 1014 | ≃3 | 2018-04-21 / 58229 | (1.92 ± 0.79)×10−3 | 10.5 ± 4.1 | 2.2.2. |
| Swift-UVOT | 439.2 nm | 6.83 × 1014 | ≃3 | 2018-04-21 / 58229 | (1.66 ± 0.27)×10−3 | 11.4 ± 1.8 | 2.2.2. |
| Swift-UVOT | 346.5 nm | 8.65 × 1014 | ≃3 | 2018-04-21 / 58229 | (6.01 ± 0.09)×10−4 | 5.22 ± 0.82 | 2.2.2. |
| Swift-UVOT | 260.0 nm | 1.15 × 1015 | ≃3 | 2018-04-21 / 58229 | (1.47 ± 0.69)×10−4 | 1.69 ± 0.79 | 2.2.2. |
| Swift-UVOT | 224.6 nm | 1.33 × 1015 | ≃3 | 2018-04-21 / 58229 | (3.35 ± 0.41)×10−4 | 4.45 ± 0.54 | 2.2.2. |
| Swift-UVOT | 192.8 nm | 1.55 × 1015 | ≃3 | 2018-04-21 / 58229 | (1.60 ± 0.51)×10−4 | 2.48 ± 0.76 | 2.2.2. |
| Swift-XRT | 2-10 keV | 1.08 × 1018 | ≃36 | 2018-04-21 / 58229 | (2.19 ± 0.22)×10−7 | 4.24 ± 0.43 | 2.3.2. |
| Chandra + NuSTAR | 0.4 - 0.51 keV | 1.09 × 1017 | 0.8 | 2018-04-22–24 / 58230–58232 | (1.67 ± 0.17)×10−6 | 1.83 ± 0.19 | 2.3.2. |
| Chandra + NuSTAR | 0.51 - 0.65 keV | 1.40 × 1017 | 0.8 | 2018-04-22–24 / 58230–58232 | (1.29 ± 0.11)×10−6 | 1.81 ± 0.16 | 2.3.2. |
| Chandra + NuSTAR | 0.65 - 0.84 keV | 1.79 × 1017 | 0.8 | 2018-04-22–24 / 58230–58232 | (1.00 ± 0.07)×10−6 | 1.78 ± 0.13 | 2.3.2. |
| Chandra + NuSTAR | 0.84 - 1.07 keV | 2.29 × 1017 | 0.8 | 2018-04-22–24 / 58230–58232 | (7.67 ± 0.47)×10−7 | 1.77 ± 0.11 | 2.3.2. |
| Chandra + NuSTAR | 1.07 - 1.37 keV | 2.93 × 1017 | 0.8 | 2018-04-22–24 / 58230–58232 | (5.92 ± 0.29)×10−7 | 1.73 ± 0.08 | 2.3.2. |
| Chandra + NuSTAR | 1.37 - 1.75 keV | 3.75 × 1017 | 0.8 | 2018-04-22–24 / 58230–58232 | (4.57 ± 0.17)×10−7 | 1.71 ± 0.06 | 2.3.2. |
| Chandra + NuSTAR | 1.75 - 2.24 keV | 4.79 × 1017 | 0.8 | 2018-04-22–24 / 58230–58232 | (3.52 ± 0.08)×10−7 | 1.69 ± 0.05 | 2.3.2. |
| Chandra + NuSTAR | 2.24 - 2.87 keV | 6.13 × 1017 | 0.8 | 2018-04-22–24 / 58230–58232 | (2.71 ± 0.07)×10−7 | 1.67 ± 0.04 | 2.3.2. |
| Chandra + NuSTAR | 2.87 - 3.67 keV | 7.84 × 1017 | 0.8 | 2018-04-22–24 / 58230–58232 | (2.10 ± 0.07)×10−7 | 1.64 ± 0.06 | 2.3.2. |
| Chandra + NuSTAR | 3.67 - 4.69 keV | 1.00 × 1018 | 0.8 | 2018-04-22–24 / 58230–58232 | (1.62 ± 0.07)×10−7 | 1.62 ± 0.07 | 2.3.2. |
| Chandra + NuSTAR | 4.69 - 6.00 keV | 1.28 × 1018 | 0.8 | 2018-04-22–24 / 58230–58232 | (1.25 ± 0.07)×10−7 | 1.60 ± 0.09 | 2.3.2. |
| Chandra + NuSTAR | 6.00 - 7.67 keV | 1.64 × 1018 | 0.8 | 2018-04-22–24 / 58230–58232 | (9.66 ± 0.67)×10−8 | 1.59 ± 0.11 | 2.3.2. |
| Chandra + NuSTAR | 7.67 - 9.81 keV | 2.10 × 1018 | 0.8 | 2018-04-22–24 / 58230–58232 | (7.47 ± 0.62)×10−8 | 1.57 ± 0.13 | 2.3.2. |
| Chandra + NuSTAR | 9.81 - 12.6 keV | 2.68 × 1018 | 0.8 | 2018-04-22–24 / 58230–58232 | (5.77 ± 0.56)×10−8 | 1.55 ± 0.15 | 2.3.2. |
| Chandra + NuSTAR | 12.6 - 16.1 keV | 3.43 × 1018 | 0.8 | 2018-04-22–24 / 58230–58232 | (4.48 ± 0.49)×10−8 | 1.53 ± 0.17 | 2.3.2. |
| Chandra + NuSTAR | 16.1 - 20.5 keV | 4.39 × 1018 | 0.8 | 2018-04-22–24 / 58230–58232 | (3.45 ± 0.43)×10−8 | 1.51 ± 0.19 | 2.3.2. |
| Chandra + NuSTAR | 20.5 - 26.3 keV | 5.62 × 1018 | 0.8 | 2018-04-22–24 / 58230–58232 | (2.66 ± 0.37)×10−8 | 1.50 ± 0.21 | 2.3.2. |
| Chandra + NuSTAR | 26.3 - 33.6 keV | 7.18 × 1018 | 0.8 | 2018-04-22–24 / 58230–58232 | (2.06 ± 0.31)×10−8 | 1.48 ± 0.23 | 2.3.2. |
| Chandra + NuSTAR | 33.6 - 43.0 keV | 9.19 × 1018 | 0.8 | 2018-04-22–24 / 58230–58232 | (1.59 ± 0.27)×10−8 | 1.47 ± 0.24 | 2.3.2. |
| Chandra + NuSTAR | 43.0 - 55.0 keV | 1.18 × 1019 | 0.8 | 2018-04-22–24 / 58230–58232 | (1.23 ± 0.22)×10−8 | 1.45 ± 0.26 | 2.3.2. |
| Fermi-LAT | 0.1 - 0.32 GeV | 4.31 × 1022 | ≃7000 | 2018-04-08–05-08 / 58216–58246 | < 2.17 × 10−11 | < 11.6 | 2.4.1. |
| Fermi-LAT | 0.32 - 0.75 GeV | 1.18 × 1023 | ≃4500 | 2018-04-08–05-08 / 58216–58246 | (6.61 ± 2.89)×10−12 | 6.88 ± 3.01 | 2.4.1. |
| Fermi-LAT | 0.75 - 1.78 GeV | 2.79 × 1023 | ≃2800 | 2018-04-08–05-08 / 58216–58246 | (1.70 ± 0.88)×10−12 | 4.24 ± 2.20 | 2.4.1. |
| Fermi-LAT | 1.78 - 4.22 GeV | 6.63 × 1024 | ≃1100 | 2018-04-08–05-08 / 58216–58246 | (6.91 ± 4.01)×10−13 | 4.08 ± 2.37 | 2.4.1. |
| Fermi-LAT | 4.22 - 10 GeV | 1.57 × 1024 | ≃700 | 2018-04-08–05-08 / 58216–58246 | < 4.32 × 10−11 | < 6.04 | 2.4.1. |
| Fermi-LAT | 10 - 100 GeV | 7.65 × 1024 | ≃350 | 2018-04-08–05-08 / 58216–58246 | < 2.42 × 10−11 | < 5.27 | 2.4.1. |
| H.E.S.S. | 0.32 - 0.46 TeV | 9.35 × 1025 | ≃360 | 2018-04-18–24 / 58226–58232 | (6.40 ± 1.65)×10−15 | 2.17 ± 0.65 | 2.4.2. |
| H.E.S.S. | 0.46 - 0.68 TeV | 1.37 × 1026 | ≃360 | 2018-04-18–24 / 58226–58232 | (4.08 ± 0.85)×10−15 | 2.17 ± 0.45 | 2.4.2. |
| H.E.S.S. | 0.68 - 1.00 TeV | 2.00 × 1026 | ≃360 | 2018-04-18–24 / 58226–58232 | (2.09 ± 0.50)×10−15 | 1.62 ± 0.39 | 2.4.2. |
| H.E.S.S. | 1.00 - 1.47 TeV | 2.93 × 1026 | ≃190 | 2018-04-18–24 / 58226–58232 | (1.75 ± 0.38)×10−15 | 1.99 ± 0.43 | 2.4.2. |
| H.E.S.S. | 1.47 - 2.15 TeV | 4.30 × 1026 | ≃190 | 2018-04-18–24 / 58226–58232 | (9.30 ± 2.49)×10−16 | 1.53 ± 0.41 | 2.4.2. |
| H.E.S.S. | 2.15 - 3.16 TeV | 6.29 × 1026 | ≃190 | 2018-04-18–24 / 58226–58232 | (10.56 ± 2.21)×10−16 | 2.58 ± 0.54 | 2.4.2. |
| H.E.S.S. | 3.16 - 4.64 TeV | 9.21 × 1026 | ≃190 | 2018-04-18–24 / 58226–58232 | (4.83 ± 1.48)×10−16 | 1.73 ± 0.53 | 2.4.2. |
| H.E.S.S. | 4.64 - 6.81 TeV | 1.36 × 1027 | ≃190 | 2018-04-18–24 / 58226–58232 | (3.22 ± 1.10)×10−16 | 1.69 ± 0.58 | 2.4.2. |
| VERITAS | 0.32 - 0.50 TeV | 9.62 × 1025 | ≃360 | 2018-04-10–21 / 58218–58229 | (4.75 ± 1.26)×10−15 | 2.07 ± 0.55 | 2.4.2. |
| VERITAS | 0.50 - 0.79 TeV | 1.53 × 1026 | ≃360 | 2018-04-10–21 / 58218–58229 | (1.70 ± 0.60)×10−15 | 1.19 ± 0.42 | 2.4.2. |
| VERITAS | 0.79 - 1.26 TeV | 2.42 × 1026 | ≃360 | 2018-04-10–21 / 58218–58229 | (2.07 ± 0.4)×10−15 | 2.35 ± 0.53 | 2.4.2. |
| VERITAS | 1.26 - 2.00 TeV | 3.83 × 1026 | ≃360 | 2018-04-10–21 / 58218–58229 | (4.19 ± 2.07)×10−16 | 0.75 ± 0.37 | 2.4.2. |
| MAGIC | 0.03 - 0.075 TeV | 1.21 × 1025 | ≅330 | 2018-04-12–25 / 58220–58233 | < 3.47 × 10−13 | < 37.84 | 2.4.2. |
| MAGIC | 0.075 - 0.19 TeV | 3.04 × 1025 | ≅300 | 2018-04-12–25 / 58220–58233 | (9.03 ± 5.96)×10−15 | 2.51 ± 1.66 | 2.4.2. |
| MAGIC | 0.19 - 0.48 TeV | 7.64 × 1025 | ≅240 | 2018-04-12–25 / 58220–58233 | (2.39 ± 1.20)×10−15 | 1.68 ± 0.84 | 2.4.2. |
| MAGIC | 0.48 - 1.2 TeV | 1.92 × 1026 | ≅190 | 2018-04-12–25 / 58220–58233 | (7.58 ± 3.50)×10−16 | 1.32 ± 0.61 | 2.4.2. |
Notes.
(a)
Spatial scale of the source emission (FWHM of the instrumental beam or PSF). Besides the EHT observation for other radio observations if the core is not resolved we use the flux peak obtained from the beam size as an upper limit on the core emission. For elliptical beams, we list the average of the axes as a representative angular scale. At higher energies, the scale typically corresponds to the PSF within a given band or the diameter of the region used for data extraction.
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