arXiv:1910.04271 [astro-ph.SR]AbstractReferencesReviewsResources Classifications Subjects Themes Keywords photoionized bipolar outflow, massive protostar, protostars generate strong radiation feedback, h30alpha hydrogen recombination line emission, atacama large millimeter/submillimeter array Tags Journal Information Publisher Journal Year Month Volume Number Pages DOI URL Miscellaneous Typesetting Pages Language License Submit Reset