Table 1
Summary of SMA observations (code 2009B–S032).
| Freq. cove. (GHz) | ||||||||||
|
|
||||||||||
| Obs. date | Array conf. | RA (J2000) | Dec (J2000) | LSB | USB | Spec. res. (MHz) | Bandpass cal. | Phase cal. | Flux cal. | HPBW |
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) |
|
|
||||||||||
| 2010 Mar. 05 | VEX (6) |
|
|
216.9−220.9 | 228.9−232.9 | 0.81a | J1924−292 | J1743−038 J1911−201 | MWC 349 |
|
| 2010 Apr. 28 | Compact (8) |
|
|
216.9−220.9 | 228.9−232.9 | 0.81a | 3C 273 3C 454.3 | J1743−038 J1911−201 | Titan |
|
Notes. Column (1): observing dates. Column (2): array configurations and number of effective antennas. Columns (3)–(4): phase center of the observations. Columns (5)–(6): approximate ranges of rest frequencies covered in the lower and upper sidebands. Column (7): spectral resolution corresponding to a velocity width of 1.05 km s-1. Columns (8)–(10): bandpass, phase, and absolute flux calibrators. Columns (11): approximate size of the beam obtained with a natural weighting at each configuration.
The spectral resolution was improved in the range 220.51−220.73 GHz by a factor of 2 to better sample the CH3CN (12K–11K) lines (see Sect.2).
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