Object: UGC11124B On scan num: 722 724 726 728 Off scan num: 723 725 727 729 R.A.: 18.129171 hrs Dec.: 35.391699 deg On azimuth: 275.110901 deg On zenith dist.: 28.552702 deg Off azimuth: 275.088507 deg Off zenith dist.: 28.516474 deg MJD: 52504 UTC: 0.168449 Center freq.: 1413.323240 MHz Doppler: -0.00004098 Num. correlators: 2 Spectrom. atten.: 37 37 dB Bandwidth: 5.0 MHz Num. channels: 1024 Eff. integration: 1140 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: 0.038 Jy Lower 20% velocity: 1471.0 km/s Upper 20% velocity: 1521.9 km/s Systemic velocity: 1496.5 km/s Line width (20%): 50.9 km/s Profile integral: 1.42 Jy * km/s A: 1.35 B: 1.50 Ratio B/A: 1.104 Flux integral velocity range: 1464.0 - 1526.5 km/s