A New H? Emission-Line Survey in the Orion Nebula Cluster Posted on June 26, 2014 by UHNAI Webmaster in Szegedi-Elek, E., M. Kun, B. Reipurth, A. Pal, L.G. Balazs, M. Willman (). A New H? Emission-Line Survey in the Orion Nebula Cluster. , 208,