Deutsch's research continued to focus on the A-type stars. He established that Horace Babcock and Douglas W. N. Stibbs's oblique rotator model explained the anomalous variability of Ap stars, and later studied other anomalous hot stars, such as the blue stragglers; he suggested that both they and the Sun had rapidly rotating cores.[1] He introduced Dopplertomography in 1958, at a symposium at Mount Wilson. He was associate editor of the Annual Review of Astronomy and Astrophysics, and a councillor of the American Astronomical Society from 1964 to 1967.[2]
His short story "A Subway Named Mobius", a fantasy based on mathematics and particularly topology published in December 1950, has been much anthologized and was nominated for a Retro Hugo in 2001; it placed 4th.[3]
Armin J. Deutsch, "The Ageing Stars of the Milky Way", in Stars and Galaxies: Birth, Ageing, and Death in the Universe, ed. Thornton Leigh Page, Englewood Cliffs, New Jersey: Prentice-Hall, 1962
Ann Merchant Boesgaard, Wendy Hagen, Armin J. Deutsch, "Circumstellar Envelopes of M Giants", Bulletin of the American Astronomical Society, Vol. 8, p. 304, March 1976 (his last paper, published posthumously)
^ abc"Deutsch, Armin Joseph", The Biographical Encyclopedia of Astronomers, ed. Thomas Hockey et al., Springer Publishing, 2007, Volume 1, p. 295; online version 2014, retrieved July 29, 2020.
