http://arxiv.org/abs/2011.07898
Only three magnetic $\delta$ Scuti stars are known as of today. HD 41641 is a $\delta$ Scuti star showing chemical peculiarities and rotational modulation of its light-curve, making it a good magnetic candidate. We acquired spectropolarimetric observations of this star with Narval at TBL to search for the presence of a magnetic field and characterize it. We indeed clearly detect a magnetic field in HD 41641, making it the fourth known magnetic $\delta$ Scuti star. Our analysis shows that the field is of fossil origin, like magnetic OBA stars, but with a complex field structure rather than the much more usual dipolar structure.
K. Thomson-Paressant, C. Neiner, K. Zwintz, et. al.
Tue, 17 Nov 20
83/83
Comments: 9 pages, 6 figures, 5 tables plus 1 in appendix
You must be logged in to post a comment.