1998A&A...329.1010U

Query : 1998A&A...329.1010U

1998A&A...329.1010U - Astronomy and Astrophysics, volume 3291010-1018 (1998/1-3)

Radio emission from Algol-type binaries. I. Results of 1992-1993 VLA survey.

UMANA G., TRIGILIO C. and CATALANO S.

Abstract (from CDS):

In this paper we report on a 5 GHz survey of 26 Algol-type binaries. Six systems were detected. We combine the new results with previously published data to derive some radio characteristics of Algols and to compare them with those of other active binaries. The radio detection rate of 30%, a factor that is somewhat smaller compared to the case of RSCVn-type, does not seem to be due to a reduced coronal activity. In fact, Algols share many similarities with the radio behavior of RS CVns and the 5GHz luminosity functions of both kind of systems look quite similar. Among the different possibilities, the high radio variability and distances, which, on average, are larger than those of RS CVns, seem to be the most reasonable explanation for the apparently reduced activity at radio wavelengths.

Abstract Copyright: ∼

Journal keyword(s): stars: binaries: eclipsing - stars: activity - radio continuum: stars

Simbad objects: 27

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Number of rows : 27
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* TW And SB* 00 03 18.2273024112 +32 50 45.105287892   9.48 9.07     F0/2V 140 0
2 V* TV Cas SB* 00 19 18.7425324624 +59 08 20.546623392 7.27 7.29 7.22     B9V 278 0
3 HD 5679 SB* 01 02 18.4439850768 +81 52 32.081564352   6.92 6.92     G2III:+B8/9 476 0
4 V* X Tri SB* 02 00 33.7371929520 +27 53 19.206276360   9.30 9.00 8.50   A7V 230 0
5 V* TW Cas SB* 02 45 54.8228245104 +65 43 35.047577280   8.48 8.38     A0V 131 0
6 V* RZ Cas SB* 02 48 55.5102370536 +69 38 03.441502644   6.40 6.26     A3V 471 0
7 V* RT Per SB* 03 23 40.3991164752 +46 34 35.840479296   11.22 10.73     F5+G0 168 0
8 V* RW Tau Be* 04 03 54.3161404416 +28 07 33.494136636   8.130 8.08 8.76   B8Ve+K0IV 270 0
9 V* TZ Eri EB* 04 21 40.3305335016 -06 01 09.200626176   9.97 9.61     A5 69 0
10 V* IM Aur SB* 05 15 29.7441759312 +46 24 21.453397632   8.07 8.11     B7V 140 0
11 V* RS Lep EB* 05 59 18.4269973704 -20 13 25.115630412   9.94 9.88     A0V 38 0
12 V* AL Gem EB* 06 57 38.5620728448 +20 53 32.300087640   10.30 9.89     F6V 63 0
13 V* S Cnc SB* 08 43 56.1367272336 +19 02 03.038805888   8.44 8.35     B9/A0V+K:III 187 0
14 V* RX Hya SB* 09 05 41.1659800536 -08 15 39.730576860   9.78 9.56     A5III 105 0
15 V* S Vel EB* 09 33 13.2033164568 -45 12 30.872524392   8.05 7.81     A5(m)A5-A8 86 0
16 V* U CrB SB* 15 18 11.3524167096 +31 38 49.412401368   7.79 7.83     B6V 267 0
17 V* V338 Her SB* 17 53 12.7350384480 +43 46 23.167154964   10.47 10.20     F2V 76 0
18 V* TZ CrA EB* 18 18 48.2158977936 -43 21 37.106714412   10.32 10.14     A1III/IV 35 0
19 V* KO Aql SB* 18 47 10.7415402480 +10 45 49.247482896   8.51 8.40     A0V 118 0
20 V* RS Vul SB* 19 17 39.9925726776 +22 26 28.364271900   6.91 6.85     B2-5V-IV 182 0
21 * U Sge SB* 19 18 48.4082723376 +19 36 37.722978540 6.23 6.61 6.58     B7III+K1III 385 0
22 HD 191515 EB* 20 09 59.5682755848 +10 20 59.013900096   9.14 9.14     A0V 99 0
23 V* ZZ Cyg EB* 20 23 52.9068755568 +46 55 14.535719688   11.56 10.98     F7: 102 0
24 V* S Equ SB* 20 57 12.8405286120 +05 04 49.425738708   8.43 8.37     B8/9IV/V 132 1
25 V* AW Peg SB* 21 52 20.6904398472 +24 00 44.333354376   7.99 7.65     A3III 106 0
26 V* AT Peg SB* 22 13 23.5161494184 +08 25 30.860613732   9.21 9.02     A6IV 119 0
27 V* DI Peg SB* 23 32 14.6757868152 +14 58 08.702585652   10.00 9.513     F0IVn 146 0

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