Evidence for Variable, Correlated X-ray and Optical/IR Extinction toward the Nearby, Pre-main Sequence Binary TWA 30

David A. Principe, G. G. Sacco, Joel H. Kastner +2

We present contemporaneous XMM-Newton X-ray and ground-based optical/near-IR spectroscopic observations of the nearby ($D\approx 42$ pc), low-mass (mid-M) binary system TWA 30A an…