Evidence for He i 10830 Å Absorption during the Transit of a Warm Neptune around the M-dwarf GJ 3470 with the Habitable-zone Planet Finder

Joe P. Ninan, Guđmundur Stefánsson, Suvrath Mahadevan, Chad F. Bender, Paul Robertson, Lawrence W. Ramsey, Ryan C. Terrien, Jason T. Wright, Scott A. Diddams, Shubham Kanodia, William D. Cochran, Michael Endl, Eric B. Ford, Connor Fredrick, Samuel Halverson, Fred Hearty, Jeff Jennings, Kyle Kaplan, Emily Lubar, Andrew J. Metcalf, Andrew Monson, Colin Nitroy, Arpita Roy, Christian Schwab