Object: LVM655. On scan num: 122 124 126 128 Off scan num: 123 125 127 129 R.A.: 14.919181 hrs Dec.: 43.818128 deg On azimuth: 294.825849 deg On zenith dist.: 38.069103 deg Off azimuth: 294.815814 deg Off zenith dist.: 38.033515 deg MJD: 52352 UTC: 0.492083 Center freq.: 1394.195231 MHz Doppler: 0.00001953 Num. correlators: 2 Spectrom. atten.: 43 42 dB Bandwidth: 10.0 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: 0.016 Jy Lower 20% velocity: 5386.7 km/s Upper 20% velocity: 5787.5 km/s Systemic velocity: 5587.1 km/s Line width (20%): 400.8 km/s Profile integral: 4.09 Jy * km/s A: 3.44 B: 3.95 Ratio B/A: 1.149 Flux integral velocity range: 5359.8 - 5804.6 km/s