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Proposal Identi cation No.: A1698 Date Received: 2002-May-30 12:10:03 Technical Page Proposal Type: Regular General Category: Astronomy Sub-Category: Spectroscopy Observation Category: Extragalactic Total Time Requested: 96 Hours Proposal Title: CH EMISSION IN GALAXIES ABSTRACT: ABSTRACT: CH emission in the Galaxy is found in almost every location where one searches. Extragalactic emission has been found in some fteen nearby galaxies but only few of these detections have been published. ...
[ Текст ] Ссылки http://www.naic.edu/vscience/schedule/tpfiles/BaantagA1698tp.ps -- 93.4 Кб -- 19.04.2004
... 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. ...