1999A&A...347..550D

Query : 1999A&A...347..550D

1999A&A...347..550D - Astronomy and Astrophysics, volume 347550-555 (1999/7-2)

The peculiar single giant HD 112989: rotation, activity and evolution.

DE MEDEIROS J.R., KONSTANTINOVA-ANTOVA R.K. and DA SILVA J.R.P.

Abstract (from CDS):

A spectroscopic, photometric and evolutionary study is presented for HD 112989, an active peculiar giant star. The present spectroscopic observations show a significant CaII K&H emission core variability, whereas the UBV photometry shows that HD 112989 has a variable brightness. The rotational velocity for this star, 11.0km/s, is about five times larger than the mean rotational velocity for giants with the same spectral type. In addition, we have found no sign of binarity for this star.

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Journal keyword(s): stars: activity - stars: chromospheres - stars: fundamental parameters - stars: individual: HD 112989 - stars: rotation

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* OP And RG* 01 36 27.2005869192 +48 43 22.000439676   7.47 6.22     K1III: 110 0
2 HD 33798 ** 05 15 15.45749 +47 10 14.6314       7.55   G5III 86 0
3 * 37 Com RS* 13 00 16.4694383232 +30 47 06.079456932   6.02 4.88     G9IIICH-2CN-1 167 0
4 HD 113493 * 13 03 49.0590213792 +31 00 05.273083584   8.40 7.35     K1III 38 0
5 HD 113494 Em* 13 03 51.3511598016 +30 45 24.765612372   8.87 8.51     F0 29 0

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