2002NewA....7...35B


Query : 2002NewA....7...35B

2002NewA....7...35B - New Astronomy, 7, 35-43 (2002/January-0)

Correlation effects in microwave observations of selected RS CVn-like stars.

BUDDING E., LIM J., SLEE O.B. and WHITE S.M.

Abstract (from CDS):

ABSTRACT: Sets of dual frequency microwave data on selected chromospherically active stars, from the Australia Telescope Compact Array, have been investigated for their auto and cross-correlation effects. Comparison of cross-correlation peak values with theoretical expectation indicates a high degree of real physical connection between the emission at the pairs of frequencies (4.8 and 8.64 GHz) compared. This fact should help constrain models for the emission mechanism. The timescale of observed time-shifts between the emissions at the two frequencies is consistent, in general, with the underlying energization being propagated by magnetohydrodynamic waves in a compact turbulent medium.

Abstract Copyright: ∼

Journal keyword(s): Stars: activity - Stars: coronae - Binaries: close - Radio continuum: stars - Techniques: miscellaneous

Simbad objects: 5

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Number of rows : 5
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026
#notes
1 V* CF Tuc RS* 00 53 07.7675726832 -74 39 05.608753668   8.31 7.90   6.730 G2/5V+F0 241 0
2 HD 22468 RS* 03 36 47.2904292073 +00 35 15.943692002 7.09 6.79 5.90     K2:Vnk 1206 0
3 V* AB Dor TT* 05 28 44.8712165880 -65 26 55.199147208 8.259 7.856 6.999 6.496 5.993 K0V 1080 0
4 HD 155555 RS* 17 17 25.5053342232 -66 57 03.732141636 7.795 7.499 6.723   6.39 G5V+K1V 292 1
5 HD 197481 BY* 20 45 09.5324974119 -31 20 27.237889841   10.05 8.627 9.078 6.593 M1VeBa1 1344 0

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