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Table 2
Observation summary of our four solar-type targets including the best achieved rms, the clean beam size, and the used phase and flux calibrators.
| Target | Band | Time on | # of | Obs. date | RMS | Clean beam | Phase | Flux | ||||
| source (h) | obs. sets | (μJy) | size | calibrator | calibrator | |||||||
|
|
||||||||||||
| EK Dra | C | 2 | 1 | Apr. 2012 | 3.4 | 4.̋96 × 3.̋43 | J1436+6336 | 3C 286 | ||||
| Ku | 1.5 | 1 | Apr. 2012 | 4 | 2.̋89 × 2.̋26 | J1436+6336 | 3C 286 | |||||
| π1 UMa | C | 1 | 3 | Jul.–Aug. 2013 | 7.7 | 5.̋89 × 4.̋50 | J0921+6215 | 3C 48 | ||||
| Ku | 1 | 4 | Jul. 2013 | 2.1 | 2.̋39 × 2.̋01 | J0921+6215 | 3C 48 | |||||
| χ1 Ori | C | 3.75 | 2 | Apr. 2012 | 1.8 | 4.̋34 × 3.̋58 | J0559+2353 | 3C 147 | ||||
| Ku | 2.5 | 6 | Apr.–June 2012 | 1.6 | 1.̋20 × 0.̋71 | J0559+2353 | 3C 147 | |||||
| 3 (ALMA) | 2.5 | 1 | Dec. 2013 | 8 | 2.̋23 × 2.̋00 | J0604+2429, | Ganymede | |||||
| J0538-4405 | ||||||||||||
| κ1 Cet | C | 1 | 2 | Jul.–Aug. 2013 | 3 | 4.̋07 × 5.̋28 | J0339-0146 | 3C 48 | ||||
| Ku | 1 | 2 | Jul. 2013 | 3 | 1.̋83 × 2.̋33 | J0339-0146 | 3C 48 | |||||
Notes. The VLA C-band is defined between 4–8 GHz, Ku-band at 12–18 GHz, and band 3 for ALMA at 100 GHz. Only χ1 Ori was observed with ALMA.
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