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The Coherent Radio Emission from the RS CVn Binary HR 1099 O. B. SleeA,C
 

Summary: The Coherent Radio Emission from the RS CVn Binary HR 1099
O. B. SleeA,C
, W. LawsonA
, G. RamsayB
A
Australia Telescope National Facility, CSIRO, P.O. Box 76 Epping, NSW 2121, Australia
B
Armagh Observatory, College Hill, Armagh, BT61 9DG, Northern Ireland, UK
C
Email: bruce.slee@csiro.au
Accepted for Publication Feb 2008.
Abstract:
The Australia Telescope was used in March­April 2005 to observe the 1.384 and 2.368
GHz emissions from the RS CVn binary HR 1099 in two sessions, each of 9 h duration
and 11 days apart. Two intervals of highly polarised emission, each lasting 2-3 h, were
recorded. During this coherent emission we employed a recently installed facility to sam-
ple the data at 78 ms intervals to measure the fine temporal structure and, in addition, all
the data were used to search for fine spectral structure. We present the following obser-
vational results; (1) 100% left hand circularly polarised emission was seen at both 1.384
and 2.368 GHz during separate epochs; (2) the intervals of highly polarised emission lasted

  

Source: Armagh Observatory

 

Collections: Physics