Object: LVM740. On scan num: 29 31 33 35 37 39 Off scan num: 30 32 34 36 38 40 R.A.: 16.457954 hrs Dec.: 54.690185 deg On azimuth: 313.337264 deg On zenith dist.: 47.712820 deg Off azimuth: 313.330131 deg Off zenith dist.: 47.681770 deg MJD: 52411 UTC: 0.444109 Center freq.: 1377.895396 MHz Doppler: -0.00001005 Num. correlators: 2 Spectrom. atten.: 35 42 dB Bandwidth: 10.0 MHz Num. channels: 1024 Eff. integration: 1500 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 10 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: 0.005 Jy Lower 20% velocity: 8991.9 km/s Upper 20% velocity: 9307.9 km/s Systemic velocity: 9149.9 km/s Line width (20%): 316.1 km/s Profile integral: 1.08 Jy * km/s A: 1.30 B: 0.84 Ratio B/A: 0.643 Flux integral velocity range: 8966.0 - 9325.0 km/s
very marginal detection, profile edge locations only guesses