Anne Barbara Underhill

Infobox scientist name = Anne Barbara Underhill native_name = image = Anne Underhill.jpg image_size = caption = Underhill in 1970 birth_date = birth_place = Vancouver, British Columbia, Canada death_date = death_place = Vancouver, British Columbia, Canada residence = workplaces = Dominion Astrophysical ObservatoryUtrecht UniversityNASA Goddard Space Flight Center education = thesis_title = Some aspects of B-type spectra thesis_year = 1948 doctoral_advisor = Subrahmanyan Chandrasekhar doctoral_students = Ed van den Heuvel known_for = early-type star research honorific_suffix = awards = Honorary Degree, University of York (1969) During her lifetime she received many awards for her contributions to astronomy and astrophysics.

Early life Underhill grew up in Vancouver, British Columbia. After graduating with her MA she received a substantial scholarship from the Canadian Federation of University Women which enabled her to enroll at the University of Toronto; however, she left after a year because the university's astrophysics program was considered weak at that time. Her thesis topic was multi-layered stellar atmospheres and contained the first model for this phenomenon. 1948: Some Aspects of B-Type Spectra, PhD dissertation University of Chicago 1959 with John H Waddell: Stark broadening functions for the hydrogen lines, [Washington] U.S. Dept. of Commerce, National Bureau of Standards, 1959, National Bureau of Standards circular, 603 1966: The Early Type Stars, Dordrecht, Holland, D. Reidel. New York, Gordon and Breach, 1966 1982 with Vera Doazan: B stars with and without emission lines, Monograph series on nonthermal phenomena in stellar atmospheres, NASA SP (Series) 456. ntrs.nasa.gov Full-text PDF 1985 with A. G. Michalitsianos: The Origin of Nonradiative Heating/Momentum in Hot Stars, NASA Scientific and Technical Information Branch, 1985 1988 with P. S. Conti: O stars and Wolf-Rayet stars, Paris, France: CNRS; Washington, D.C. : National Aeronautics and Space Administration, Scientific and Technical Information Branch; [Springfield, Va.], Monograph series on nonthermal phenomena in stellar atmospheres; NASA SP (Series) 497.

Dutch PhD students at Utrecht University At Utrecht University Underhill supervised the following PhD junior researchers as promotor (doctoral advisor) or as copromotor (secondary doctoral advisor). PromovendusDissertationYear#descendants de Groot, Martin Jan Hugo, doctoral advisor On the Spectrum and Nature of P Cygni 1970 Lamers, Hermanus Johannes Gerardus Lambertus Maria,copromotor, with Cornelis de Jager doctoral advisor Studies on the Structure and Stability of Extended Stellar Atmospheres 1974 4van den Heuvel, Edward Peter Jacobus,copromotor, with Cornelis de Jager doctoral advisor A Study of Stellar Rotation : The Origin of Peculiar and Metallic-Line A and B Stars 1968 36