Object: 14+13-3b On scan num: 181 183 185 187 189 191 Off scan num: 182 184 186 188 190 192 R.A.: 0.015509 hrs Dec.: -41.314566 deg On azimuth: 172.800710 deg On zenith dist.: 80.062896 deg Off azimuth: 172.765813 deg Off zenith dist.: 80.067443 deg MJD: 52616 UTC: 0.979120 Center freq.: 1418.400341 MHz Doppler: -0.00007953 Num. correlators: 2 Spectrom. atten.: 38 38 dB Bandwidth: 10.0 MHz Num. channels: 1024 Eff. integration: 1500 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 9 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: 0.132 Jy Lower 20% velocity: 94.3 km/s Upper 20% velocity: 164.1 km/s Systemic velocity: 129.2 km/s Line width (20%): 69.8 km/s Profile integral: 5.61 Jy * km/s A: 5.11 B: 5.72 Ratio B/A: 1.120 Flux integral velocity range: 82.1 - 179.0 km/s