Object: N1134 On scan num: 852 854 856 Off scan num: 853 855 857 R.A.: 2.894823 hrs Dec.: 13.014724 deg On azimuth: 253.972102 deg On zenith dist.: 50.711639 deg Off azimuth: 253.938243 deg Off zenith dist.: 50.680015 deg MJD: 52283 UTC: 0.177813 Center freq.: 1403.404870 MHz Doppler: -0.00009132 Num. correlators: 2 Spectrom. atten.: 33 38 dB Bandwidth: 10.0 MHz Num. channels: 1024 Eff. integration: 840 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. Narrow band interference was removed from 3 channels by interpolation between the nearest valid channels
Peak intensity: 0.165 Jy Lower 20% velocity: 3425.9 km/s Upper 20% velocity: 3861.3 km/s Systemic velocity: 3643.6 km/s Line width (20%): 435.3 km/s Profile integral: 44.46 Jy * km/s A: 35.86 B: 44.23 Ratio B/A: 1.233 Flux integral velocity range: 3380.7 - 3902.3 km/s