Object: IC5325 On scan num: 169 171 173 175 177 179 Off scan num: 170 172 174 176 178 180 R.A.: 23.478646 hrs Dec.: -41.332569 deg On azimuth: 166.665676 deg On zenith dist.: 81.216736 deg Off azimuth: 166.628521 deg Off zenith dist.: 81.225920 deg MJD: 52616 UTC: 0.934063 Center freq.: 1413.205860 MHz Doppler: -0.00008089 Num. correlators: 2 Spectrom. atten.: 38 38 dB Bandwidth: 10.0 MHz Num. channels: 1024 Eff. integration: 1740 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 1 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 7th-order least squares fit baseline removed using most of the baseline shown in Figure 2.
Peak intensity: 0.106 Jy Lower 20% velocity: 1436.7 km/s Upper 20% velocity: 1581.1 km/s Systemic velocity: 1508.9 km/s Line width (20%): 144.4 km/s Profile integral: 11.95 Jy * km/s A: 9.01 B: 12.02 Ratio B/A: 1.335 Flux integral velocity range: 1413.6 - 1596.8 km/s