STARSPOT-INDUCED OPTICAL AND INFRARED RADIAL VELOCITY VARIABILITY IN T TAURI STAR HUBBLE I 4
Naved I. Mahmud1,7,8, Christopher J. Crockett2,3,7,8, Christopher M. Johns-Krull1,7,8, L. Prato2,7,8, Patrick M. Hartigan1, Daniel T. Jaffe4 and Charles A. Beichman5,6
http://iopscience.iop.org/0004-637X/736/2/123