Table 1.
Log of observations and characteristics of the VLBI clean maps forming the NGC 315 multifrequency data-set.
| Freq. | P.C. | Date | Array | Pol | Beam | Eq. beam | Stot | Speak | rms |
|---|---|---|---|---|---|---|---|---|---|
| [GHz] | [mas × mas, deg] | [mas] | [mJy] | [mJy beam−1] | [mJy beam−1] | ||||
| 1.4 | BB020 | 1994-11-26 | VLBA,Y | RR | 8.30 × 4.73, 8 | 6.27 | 373 | 192 | 0.20 |
| 1.6 | ES049B | 2005-03-09 | EVN | Dual | 16.90 × 12.40, −87 | 14.48 | 691 | 506 | 0.11 |
| 5.0 | BG0012 | 1994-11-15 | VLBA | RR | 2.48 × 1.29, −5 | 1.79 | 598 | 328 | 0.11 |
| 5.0 | BC0051A | 1995-10-28 | VLBA | Dual | 2.21 × 1.34, −3 | 1.72 | 604 | 314 | 0.08 |
| 5.0 | BC0051B | 1996-05-10 | VLBA ( * ),Y | Dual | 3.65 × 2.56, −18 | 3.06 | 603 | 403 | 0.07 |
| 5.0 | BC0051C | 1996-10-07 | VLBA,Y | Dual | 2.31 × 1.35, −5 | 1.77 | 596 | 300 | 0.04 |
| 5.0 | BG0170A | 2007-12-02 | VLBA ( * *),Y,GB,EF | Dual | 3.92 × 0.93, −11 | 1.91 | 569 | 292 | 0.75 |
| 8.4 | BG0012 | 1994-11-15 | VLBA | RR | 1.44 × 0.76, −7 | 1.05 | 719 | 361 | 0.16 |
| 8.4 | BL137A | 2006-02-12 | VLBA | Dual | 1.57 × 1.02, −5 | 1.27 | 657 | 365 | 0.18 |
| 8.4 | BG0170B | 2008-02-03 | VLBA ( * ),Y,GB,EF,AR | Dual | 1.15 × 0.63, −10 | 0.85 | 675 | 304 | 0.05 |
| 12.1 | BL137A | 2006-02-12 | VLBA | Dual | 1.11 × 0.70, −4 | 0.88 | 758 | 392 | 0.35 |
| 15.4 | BL137A | 2006-02-12 | VLBA | Dual | 0.84 × 0.57, −6 | 0.69 | 647 | 354 | 0.20 |
| 21.9 | BN0005A | 1997-02-15 | VLBA,Y | RR | 0.52 × 0.32, −1 | 0.41 | 675 | 338 | 0.28 |
| 22.2 | BG0170A | 2007-12-02 | VLBA ( * *),Y,GB,EF | Dual | 0.94 × 0.25, −22 | 0.49 | 632 | 255 | 0.25 |
| 22.3 | BB393C | 2018-11-24 | VLBA,Y,EF | Dual | 0.59 × 0.27, −11 | 0.40 | 447 | 184 | 0.04 |
| 43.2 | BG0170B | 2008-02-03 | VLBA ( * ),Y,GB,EF | Dual | 0.27 × 0.14, −20 | 0.19 | 417 | 208 | 0.10 |
| 43.2 | BB393C | 2018-11-24 | VLBA,Y,EF | Dual | 0.30 × 0.16, −13 | 0.22 | 268 | 116 | 0.05 |
| 86.2 | MB010 | 2018-09-27 | GMVA | Dual | 0.12 × 0.06, −20 | 0.08 | 136 | 115 | 0.14 |
Notes. Column 1: Frequency. Column 2: Project code. Column 3: Date of observation. Column 4: Array. VLBA – Very Long Baseline Array. ( * )No data from Mauna Kea, ( * *)No data from Saint Croix; GMVA – Global Millimeter-VLBI Array; EVN – European VLBI network; EF – Effelsberg; Y – Very Large Array; AR – Arecibo. Column 5: Polarization. Column 6: Beam FWHM and position angle. Column 7: Equivalent circular beam. Column 8: Total flux density. Column 9: Peak flux density. Column 10: Image noise. All values are for untapered data with uniform weighting.
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