Object: NGC5752-5a On scan num: 760 762 764 Off scan num: 761 763 765 R.A.: 14.755226 hrs Dec.: 38.766790 deg On azimuth: 300.882957 deg On zenith dist.: 65.078557 deg Off azimuth: 300.861408 deg Off zenith dist.: 65.044703 deg MJD: 52634 UTC: 0.812685 Center freq.: 1388.079905 MHz Doppler: 0.00005988 Num. correlators: 2 Spectrom. atten.: 38 40 dB Bandwidth: 40.0 MHz Num. channels: 1024 Eff. integration: 780 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 4 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: 0.013 Jy Lower 20% velocity: 9450.0 km/s Upper 20% velocity: 9810.0 km/s Systemic velocity: 9630.0 km/s Line width (20%): 360.0 km/s Profile integral: 3.04 Jy * km/s A: 2.51 B: 3.06 Ratio B/A: 1.222 Flux integral velocity range: 9392.2 - 9866.4 km/s
another profile near 4400 km/s