The magnetic field of the B3V star 16 Pegasi

Details The magnetic field of the B3V star 16 Pegasi The magnetic field of the B3V star 16 Pegasi

2008-12-25

arxiv.org/abs/0812.4603v1

Astronomy and Astrophysics

Astrophysics

2 pages, 4 figures, contrubuted poster at IAU Symposium 259 "Cosmic Magnetic Fields: from Planets, to Stars and Galaxies", Ten

Scientific paper

10.1017/S1743921309030828

The Slowly Pulsating B3V star 16 Pegasi was discovered by Hubrig (2006) to be magnetic, based on low-resolution spectropolarimetric observations with FORS1 at the VLT. We have confirmed the presence of a magnetic field with new measurements with the spectropolarimeters Narval at TBL, France and Espadons at CFHT, Hawaii during 2007. The most likely period is about 1.44 d for the modulation of the field, but this could not be firmly established with the available data set. No variability has been found in the UV stellar wind lines. Although the star was reported once to show H alpha in emission, there exists at present no confirmation that the star is a Be star.

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