... A2645 Date Received: 2011Jun01 20:00:54 Technical Page Proposal Type: Regular General Category: Astronomy SubCategory: Spectroscopy Observation Category: Galactic Total Time Requested: 200 Hours Minimum Useful Time: 30 mins Proposal Title: Continuing the Monitoring of High Latitude OH/IR Stars ABSTRACT: This is a proposal to continue the monitoring of OH masers in high latitude OH/IR stars. It is only ever accorded scraps of time, most in the daytime / twilight gaps of the telescope schedule. ...
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... 2.3 Data acquisition Spectra generated by the Multibeam correlator contain the usual structure seen in spectra from other H i instruments: a bandpass spectrum which is the sum of the sky , ground and receiver temperatures multiplied by the product of the filters in the receiver chain; superimposed on this is a noise ... Note also that sources extended much beyond ,40 arcmin can be imaged poorly in HIPASS images because of the bandpass sidelobe effect described in Section 3.3. ...