1999A&A...346..432H


Query : 1999A&A...346..432H

1999A&A...346..432H - Astronomy and Astrophysics, volume 346432-436 (1999/6-2)

Doppler images of the pre-main sequence binary V824 Arae.

HATZES A.P. and KUERSTER M.

Abstract (from CDS):

A time series of spectral observations are used to derive the spot distribution on both components of the active late-type binary system V824 Ara. Both stars show a spot distribution that is dominated by a polar spot whose center is displaced from the rotation axis of the star. This is similar to the spot distribution found on other young stars and may provide further support for the hypothesis that V824 Ara is a pre-main sequence binary. The Doppler images of both components appear to be mirror images of each other and this suggests that tidal forces may influence the spot distribution on these stars.

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Journal keyword(s): stars: binaries: spectroscopic - stars: imaging - stars: individual: V 824 Ara - stars: pre-main sequence - stars: starspots

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* V410 Tau Or* 04 18 31.1081296680 +28 27 16.155955728   12.13 10.75 8.45 9.408 K3Ve 483 0
2 HD 283572 Or* 04 21 58.8484815456 +28 18 06.512641416   9.80 9.03 9.14   G5IVe 308 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 155555C Y*? 17 17 31.2882831192 -66 57 05.470945380   14.36 12.82 12.33   M3Ve 70 1

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