... A1972 Date Received: 2004-Jun-01 13:53:14 Technical Page Proposal Type: Regular General Category : Astronomy Sub- Category : Spectroscopy Observation Category : Extragalactic Total Time Requested: 33 Hours Proposal Title: A Search for Massive Low Surface Brightness Galaxies ABSTRACT: Gaining a rm understanding of Low Surface Brightness ( Observations show increasingly that the `traditional' view of LSB galaxies as low mass, blue young dwarf-like systems is actually incorrect. ...

... 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. ...