Author

J. C. Ramirez Vlex

results may include different authors with the same name

2 papers

Differential rotation on both components of the pre main-sequence binary system HD 155555

We present the first measurements of surface differential rotation on a pre-main sequence binary system. Using intensity (Stokes I) and circularly polarised (Stokes V) timeseries spectra, taken over eleven nights at the Anglo-Australian…

Astrophysics · Physics 2009-11-13 N. J. Dunstone , G. A. J. Hussain , A. Collier Cameron , S. C. Marsden , M. Jardine , J. R. Barnes , J. C. Ramirez Vlex , J. -F. Donati

The first magnetic maps of a pre-main sequence binary star system - HD 155555

We present the first maps of the surface magnetic fields of a pre-main sequence binary system. Spectropolarimetric observations of the young, 18 Myr, HD 155555 (V824 Ara, G5IV + K0IV) system were obtained at the Anglo-Australian Telescope…

Astrophysics · Physics 2009-11-13 N. J. Dunstone , G. A. J. Hussain , A. Collier Cameron , S. C. Marsden , M. Jardine , H. C. Stempels , J. C. Ramirez Vlex , J. -F. Donati