Object: 14+12-2 On scan num: 102 106 Off scan num: 103 107 R.A.: 10.268492 hrs Dec.: -39.989286 deg On azimuth: 188.984871 deg On zenith dist.: 79.017827 deg Off azimuth: 189.662300 deg Off zenith dist.: 79.129123 deg MJD: 52811 UTC: 0.930938 Center freq.: 1416.529844 MHz Doppler: -0.00006755 Num. correlators: 2 Spectrom. atten.: 0 0 dB Bandwidth: 12.5 MHz Num. channels: 8192 Eff. integration: 570 seconds
This spectrum is the integration of all data for the scan with spectra from both polarizations added together. The spectral intensities are Ssys * (on - off) / off, where Ssys is the system temperature in Jy. The system noise flux density equivalent is calibrated for each scan with a calibration noise source firing during each scan. The cal value, in Jy, is calibrated by comparison with a number of continuum sources as described in the summary web page
This spectrum is the same as Figure 1 but with 2 60-second sub-integrations manually deleted because of interference or a bad baseline.
This is the section of spectrum measured to obtain the parameters listed below. The three horizontal dotted lines are the baseline, the peak level selected, and 20% of the peak level. The two vertical dotted lines mark the selected 20% line width edges. The solid horizontal line marks the velocity range chosen for the the line profile flux density integral. This spectrum has a second-order least squares fit baseline removed using most of the baseline shown in Figure 2.
Peak intensity: 0.023 Jy Lower 20% velocity: 241.7 km/s Upper 20% velocity: 273.1 km/s Systemic velocity: 257.4 km/s Line width (20%): 31.4 km/s Profile integral: 0.54 Jy * km/s A: 0.61 B: 0.46 Ratio B/A: 0.758 Flux integral velocity range: 233.8 - 275.4 km/s