Object: LVM346. On scan num: 117 119 121 123 125 127 Off scan num: 118 120 122 124 126 128 R.A.: 9.576881 hrs Dec.: 81.145121 deg On azimuth: 353.796993 deg On zenith dist.: 43.850671 deg Off azimuth: 353.809731 deg Off zenith dist.: 43.844587 deg MJD: 52285 UTC: 0.392164 Center freq.: 1391.854503 MHz Doppler: -0.00000550 Num. correlators: 2 Spectrom. atten.: 33 38 dB Bandwidth: 10.0 MHz Num. channels: 1024 Eff. integration: 1440 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 11 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 10 channels by interpolation between the nearest valid channels
Peak intensity: 0.005 Jy Lower 20% velocity: 5787.6 km/s Upper 20% velocity: 6082.5 km/s Systemic velocity: 5935.0 km/s Line width (20%): 294.9 km/s Profile integral: 0.87 Jy * km/s A: 0.74 B: 0.95 Ratio B/A: 1.276 Flux integral velocity range: 5772.8 - 6096.5 km/s
very low SNR, profile edge locations are guesses