Biographical Sketch:
B.A. 1956 University of Washington
M.A. 1959 Columbia University
Ph.D. 1964 Columbia University
Interests:
Professor Tsuruta is involved with the astrophysics research group in various theoretical problems of high energy, plasma, relativistic, particle and nuclear astrophysics, with particular emphasis on studies of dense matter in neutron stars and ultrahot plasmas around supermassive black holes. Professor Tsuruta's current research includes detailed calculations of neutron star cooling and heating with superfluid particles, pion and kaon condensates, quarks, and strong magnetic fields; implications of the results of these calculations to the problem of detectability of these stars; and construction of viable models of a central power house in active galactic nuclei (AGN). This central engine is considered to be responsible for the enormous amount of energy produced in quasars and strong radio galaxies.
Selected Publications:
"Effects of Shocks on Emission from Central Engine of Active Galactic Nuclei-I," R. Sivron, D. Caditz and S. Tsuruta, Astrophysical Journal 469, 542, (1996).
"Heated Polar Caps in PSRs 0656+14 and 1055--52", G. Greiveldinger and S. Tsuruta, Astrophysical Journal, 465, L35, (1996).
"X-Ray Spectral Variability in NGC 7469," S. Tsuruta, K. Leighly, and H. Kunieda, etc., Astrophysical Journal, 462, (1996).
"Axiom Cooling and Omega," S. Tsuruta and L. Qin, in the Cosmological Constant Evolution of the University, (ed. K. Sato et al.), Universal Academy Press, p.309, (1996).
"Thermal Properties and Detectability of Neutron Stars - II", Physics Reports, in press, 1996.
"Thermal Evolution of Neutron Stars - Current Status", in Lives of the Neutron Stars (edited by A. Alpar et al.), Kulwer Academic Publishers, p. 133 (1995).
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