Posted on May 25, 2001

Jonathan Marr, assistant professor of physics, has authored several papers. With G. B. Taylor, T. J. Pearson, and A. C. S. Readhead, a paper titled “Kinematic Age Estimates for Four Compact Symmetric Objects from the Pearson-Readhead Survey” in the September 20, 2000 edition of The Astrophysical Journal; with Taylor and F. Crawford III, a paper titled “Non-uniform free-free absorption in the GPS Radio Galaxy 0108+388” in the March 20, 2001 edition of The Astrophysical Journal. Also, the Research Corporation has awarded Marr a grant of $20,236 for his project “Examination of the spectral turnover in gigahertz-peaked spectrum sources: Synchrotron self-absorption vs. free-free absorption.” Marr is to make a presentation (with Taylor) titled “Multi-Frequency VLBA Observations of 19 Compact Symmetric Objects” at a meeting of the American Astronomical Society Conference this summer in Pasadena, Calif.