Simulating the environment around planet-hosting stars - I. Coronal structure J. D. Alvarado-Gómez, G. A. J. Hussain, O. Cohen, J. J. Drake, C. Garraffo, J. Grunhut and T. I. Gombosi A&A, 588 (2016) A28 Published online: 14 March 2016 DOI: 10.1051/0004-6361/201527832