The MUSCLES Extension for Atmospheric Transmission Spectroscopy: UV and X-Ray Host-star Observations for JWST ERS & GTO Targets oleh Patrick R. Behr, Kevin France, Alexander Brown, Girish Duvvuri, Jacob L. Bean, Zachory Berta-Thompson, Cynthia Froning, Yamila Miguel, J. Sebastian Pineda, David J. Wilson, Allison Youngblood