Table Of Content

THE ASTROPHYSICAL JOURNAL LETTERS CONTENTS OF VOLUME 375, PART 2 1991 JULY 1, Number 1 Page Fiche INFRARED BROAD EMISSION LINES FROM AN OBSCURED QUASAR, IRAS 23060+0505 Li 117-A7 Tadashi Nakajima, Nathaniel P. Carleton, & Minoru Nishida DYNAMICAL SEGREGATION OF DIRECT AND RETROGRADE ORBITS IN BINARY DISK GALAXIES LS 117-Al13 William C. Keel GRIS OBSERVATIONS OF 7°Al GAMMA-RAY LINE EMISSION FROM TWO POINTS IN THE GALACTIC PLANE L9 117-B4 B. J. Teegarden, S. D. Barthelmy, N. Gehrels, J. Tueller, M. Leventhal, & C. J. MacCallum GRIS OBSERVATIONS OF POSITRON ANNIHILATION RADIATION FROM THE GALACTIC CENTER 117-B10 N. Gehrels, S. D. Barthelmy, B. J. Teegarden, J. Tueller, M. Leventhal, & C. J. MacCallum TRAPPED H,0 IN SiO CONDENSATE: AN EXPLANATION FOR THE 3 MICRON BAND OBSERVED TOWARD THE 117-Cl GALACTIC CENTER S. Wada, A. Sakata, & A. T. Tokunaga BROWN DWARFS IN YOUNG STELLAR CLUSTERS Guy S. Stringfellow DIFFUSION AND MIXING IN CLASSICAL NOVA PRECURSORS Icko Iben, Jr., Masayuki Y. Fujimoto, & Jim MacDonald NOISE-DRIVEN RADIATIVE SHOCKS: A NEW MODEL FOR THE OPTICAL QUASI-PERIODIC OSCILLATIONS OF THE AM HERCULIS OBJECTS Michael T. Wolff, Kent S. Wood, & James N. Imamura THE LOCATION OF THE SOURCE OF HIGH-FREQUENCY SOLAR ACOUSTIC OSCILLATIONS L35 117-D12 Pawan Kumar & Edward Lu INSTRUCTIONS TO AUTHORS OF LETTERS Inside Back Cover 1991 JULY 10, Number 2 EVIDENCE FOR A MASSIVE, DARK GRAVITATIONAL LENSING OBJECT IN Q2345 +007 Robert C. Duncan THE CHARGE STATE OF THE ANOMALOUS COMPONENT OF COSMIC RAYS J. H. Adams, Jr. M. Garcia-Munoz, N. L. Grigorov, B Klecker, M. A. Kondratyeva, G. M. Mason, R. E. McGuire, R. A. Mewaldt, M. I. Panasyuk, Ch. A. Tretyakova, A. J. Tylka, & D. A. Zhuravlev CYCLOTRON LINE FEATURES IN THE SPECTRUM OF THE TRANSIENT X-RAY PULSAR X0115 + 634 124-B11 F. Nagase, T. Dotani, Y. Tanaka, K. Makishima, T: Mihara, T. Sakao, H. Tsunemi, S. Kitamoto, K. Tamura, A. Yoshida, & H. Nakamura FROM WIND TO SUPERWIND: THE EVOLUTION OF MASS-LOSS RATES FOR MIRA MODELS G. H. Bowen & L. A. Willson RADIO RANGE MEASUREMENTS OF CORONAL ELECTRON DENSITIES AT 13 AND 3.6 CENTIMETER WAVELENGTHS DURING THE 1988 SOLAR CONJUNCTION OF VOYAGER 2 T. P. Krisher, J. D. Anderson, D. D. Morabito, S. W. Asmar, S. E. Borutzki, M. L. Delitsky, A. C. Densmore, P. M. Eshe, G. D. Lewis, M. J. Maurer, D. C. Roth, Y. H. Son, T. R. Spilker, D. N. Sweetnam, A. H. Taylor, G. L. Tyler, D. L. Gresh, & P. A. Rosen HOW MUCH ENERGY CAN BE STORED IN A THREE-DIMENSIONAL FORCE-FREE MAGNETIC FIELD? L61 124-Cll J. J. Aly INSTRUCTIONS TO AUTHORS OF LETTERS Inside Back Cover