Object: 14+13-3 On scan num: 193 195 197 Off scan num: 194 196 198 R.A.: 0.015521 hrs Dec.: -41.147936 deg On azimuth: 185.156192 deg On zenith dist.: 79.673588 deg Off azimuth: 185.121132 deg Off zenith dist.: 79.670225 deg MJD: 52617 UTC: 0.024016 Center freq.: 1418.399745 MHz Doppler: -0.00007995 Num. correlators: 2 Spectrom. atten.: 38 38 dB Bandwidth: 10.0 MHz Num. channels: 1024 Eff. integration: 720 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 5 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: 0.074 Jy Lower 20% velocity: 119.8 km/s Upper 20% velocity: 163.1 km/s Systemic velocity: 141.5 km/s Line width (20%): 43.2 km/s Profile integral: 2.26 Jy * km/s A: 1.92 B: 2.44 Ratio B/A: 1.272 Flux integral velocity range: 113.0 - 177.0 km/s