1999A&A...342..709U


Query : 1999A&A...342..709U

1999A&A...342..709U - Astronomy and Astrophysics, volume 342, 709-716 (1999/2-3)

The radio spectrum of Algol-type systems: RZ Cassiopeiae.

UMANA G., LETO P., TRIGILIO C., HJELLMING R.M. and CATALANO S.

Abstract (from CDS):

We present multifrequency radio observations of the Algol-type binary system RZ Cas, performed in different epochs from 1991 October to 1992 April. During this period the system shows variability in the radio flux that cannot be attributed to geometrical effects due to a partial eclipse of the radio source. Instead, differences between radio spectra can be reproduced assuming a core-halo morphology for the radio source, where physical conditions vary as a consequence of magnetic activity. Almost simultaneous X-ray observations, carried out by other authors, allow to further constrain the physical parameters of the radio emitting region and are consistent with a co-spatial model for the X-ray and radio emitting source.

Abstract Copyright:

Journal keyword(s): stars: activity - stars: binaries: close - stars: coronae - stars: individual: RZ Cas - radio continuum: stars

Simbad objects: 4

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Number of rows : 4
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 3C 48 QSO 01 37 41.2996631208 +33 09 35.080388820   16.62 16.20     ~ 2673 2
2 4C 67.05 QSO 02 28 50.0509728096 +67 21 03.034681488   19.5   18.1   ~ 240 1
3 V* RZ Cas EB* 02 48 55.5102370536 +69 38 03.441502644   6.40 6.26     A3V 445 0
4 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4059 2

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2022.05.19-21:04:06

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