Proposal Identification No.: A2156 Date Received: 2005-Sep-27 17:52:02 Technical Page Proposal Type: General Category: Sub-Category: Observation Category: Total Time Requested: Prop osal Title: ABSTRACT: Regular Astronomy Spectroscopy Extragalactic 27 Hours An HI Study of Star-Forming Dwarf Galaxies We prop ose an HI study of a unique, complete sample of 26 star-forming dwarf galaxies for which we have unsurpassed multi-wavelength supp orting data from visible to mid-infrared wavelengths. ...
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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. ...