SIMBAD references

2002MNRAS.331..666J - Mon. Not. R. Astron. Soc., 331, 666-672 (2002/April-2)

The latitude distribution of star-spots on He 699.

JEFFERS S.V., BARNES J.R. and COLLIER CAMERON A.

Abstract (from CDS):

In this paper, the latitude distribution of star-spots is analysed for the rapidly rotating G dwarf He 699. An image has been reconstructed from data taken with the William Herschel Telescope on La Palma on 2000 October 8. The predominant magnetic field structure is a decentred polar spot at high latitude, with smaller low-latitude features also present. This result is verified by independent reconstructions using even- and odd-numbered spectra. This work confirms and extends that of Barnes et al., and provides further evidence that there is a correlation between the presence of low-latitude features and the amplitude of the photometric light curve. It is also a further step in the search for activity cycles on young G dwarfs.

Abstract Copyright: 2002 Blackwell Science Ltd

Journal keyword(s): methods: data analysis - stars: activity - stars: imaging - stars: individual: He 699 - stars: late-type - stars: spots

CDS comments: Fig.1: stars 1 and 2 not in SIMBAD

Simbad objects: 6

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