PULSAR OBSERVATIONS AT DECAMETRIC WAVELENGTHS USING A SWEPT-FREQUENCYDEDISPERSER

Citation
Aa. Deshpande et V. Radhakrishnan, PULSAR OBSERVATIONS AT DECAMETRIC WAVELENGTHS USING A SWEPT-FREQUENCYDEDISPERSER, Journal of astrophysics and astronomy, 15(3), 1994, pp. 329-341
Citations number
16
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Astronomy & Astrophysics
ISSN journal
0250-6335
Volume
15
Issue
3
Year of publication
1994
Pages
329 - 341
Database
ISI
SICI code
0250-6335(1994)15:3<329:POADWU>2.0.ZU;2-6
Abstract
In this paper, we describe pulsar observations at decametric wavelengt hs using the Gauribidanur Radio Telescope made subsequent to our earli er measurements (Deshpande & Radhakrishnan 1992). To improve the time- resolution in our measurements of pulse profiles, we have used the 'sw ept-frequency dedispersion' method with some modifications to suit its application at such low radio frequencies. We also present a new sche me that simplifies the calibration of the receiver gain characteristic s. We present average profiles on four pulsars from these improved mea surements at 34.5 MHz.