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THE ASTROPHYSICAL JOURNAL CONTENTS OF VOLUME 434, PART 1 1994 OCTOBER 10, Number 1 Fiche POWER-SPECTRUM-INDEPENDENT CONSTRAINTS ON COSMOLOGICAL MODELS 225-Cl Max Tegmark, Emory F. Bunn, & Wayne Hu MIXED DARK MATTER FROM NEUTRINO LASING 225-D1 G. D. Starkman, N. Kaiser, & R. A. Malaney MEASUREMENT OF LARGE- AND SUPERLARGE-SCALE STRUCTURES OF THE UNIVERSE 225-E2 Olga E. Buryak, Andrei G. Doroshkevich, & Richard Fong TESTING THE LEAST ACTION PRINCIPLE IN AN Q, = | UNIVERSE 225-F4 E. Branchini & R. G. Carlberg STAR-DISK COLLISIONS AND THE ORIGIN OF THE BROAD LINES IN QUASARS 225-G2 Wojciech H. Zurek, Aneta Siemiginowska, & Stirling A. Colgate A STATISTICAL ANALYSIS OF THE BROADBAND 0.1 TO 3.5 keV SPECTRAL PROPERTIES OF X-RAY-SELECTED 225-G13 ACTIVE GALACTIC NUCLEI R. J. Thompson, Jr., & F. A. Cérdova HIGH-RESOLUTION OPTICAL AND UV OBSERVATIONS OF THE CENTERS OF NGC 1316 AND NGC 3998 WITH THE HUBBLE SPACE TELESCOPE G. Fabbiano, C. Fassnacht, & G. Trinchieri SPECTROPOLARIMETRY OF HIGH-POLARIZATION SEYFERT 1 GALAXIES: GEOMETRY AND KINEMATICS OF THE SCATTERING REGIONS R. W. Goodrich & J. S. Miller LINEAR STABILITY OF SPHERICAL COLLISIONLESS STELLAR SYSTEMS 226-D8 G. Bertin, F- Pegoraro, F. Rubini, & E. Vesperini H1 AND CO IN THE NUCLEAR DISK OF NGC 4261 226-E13 Walter Jaffe & Brian R. McNamara THE HAWAII K-BAND GALAXY SURVEY. I. DEEP K-BAND IMAGING 226-F6 L. L. Cowie, J. P-G ardner, E. M. Hu, A. Songaila, K.-W. Hodapp, & R. J. Wainscoat RADIO OBSERVATIONS OF M83 AND ITS SUPERNOVA REMNANTS 226-G10 John J. Cowan, Douglas A. Roberts, & David Branch GAMMA-RAY OBSERVATIONS IN THE GALACTIC CENTER REGION WITH AN IMAGING DETECTOR 227-A8 Jalal Samimi & Robert L. Kinzer PROPERTIES OF THE HIGHLY IONIZED DISK AND HALO GAS TOWARD TWO DISTANT HIGH-LATITUDE STARS Blair D. Savage & Kenneth R. Sembach THE ASSOCIATION OF HIGH-LATITUDE MOLECULAR CLOUDS WITH H 1 GAS 227-C13 Be-Young Gir, Leo Blitz, & Loris Magnani VIBRATIONAL EXCITATION IN THE PRODUCTS OF ELECTRON-ION RECOMBINATION: A TEST OF THEORY FOR IONS OF INTERSTELLAR SIGNIFICANCE Nigel G. Adams & Lucia M. Babcock COLLISIONAL EXCITATION OF INTERSTELLAR SULFUR MONOXIDE Sheldon Green STEADY STATE MAGNETIC RECONNECTION IN PLANAR GEOMETRIES I. J. D. Craig & S. M. Henton CONTENTS Fiche ON THE EFFECTS OF A WEAK MAGNETIC FIELD ON TURBULENT TRANSPORT 228-B12 Fausto Cattaneo ON THE GLOBAL STABILITY OF MAGNETIZED ACCRETION DISKS. I. AXISYMMETRIC MODES 228-C7 Charles Curry, Ralph E. Pudritz, & Peter G. Sutherland A NUMERICAL SIMULATION OF A VARIABLE VELOCITY JET 228-D11 S. Biro & A. C. Raga ENTRAINMENT BY THE JET IN HH 47 228-E12 John C. Raymond, Jon A. Morse, Patrick Hartigan, Salvador Curiel, & Steve Heathcote NEW FORMALDEHYDE MASERS IN SAGITTARIUS B2 228-F6 David M. Mehringer, W. M. Goss, & Patrick Palmer HIGHLY IONIZED GAS IN THE GALACTIC DISK: THE / = 295°, b = 0° INTERARM DIRECTION 228-G3 Kenneth R. Sembach RADIATIVE SHOCK OVERSTABILITY OF FINITE-SIZED OBJECTS 229-A11 Ruth Dgani & Noam Soker NUMERICAL STUDY OF ROTATING CORE COLLAPSE IN SUPERNOVA EXPLOSIONS 229-B6 Shoichi Yamada & Katsuhiko Sato THE THERMAL RELAXATION OSCILLATION STATES OF CONTACT BINARIES Jian-Min Wang EPISODIC MASS TRANSFER IN BINARIES WITH X-RAY HEATING 229-C13 A. Harpaz & S. Rappaport THE PULSED HARD X-RAY SPECTRUM OF PSR B1509-—58 229-D7 S. M. Matz, M. P. Ulmer, D. A. Grabeisky, W. R. Purcell, J. E. Grove, W. N. Johnson, R. L. Kinzer, J. D. Kurfess, M. S. Strickman, & G. V. Jung SIMULTANEOUS OPTICAL AND TeV GAMMA-RAY OBSERVATIONS OF THE CATACLYSMIC VARIABLE AE AQUARII P. J. Meintjes, O. C. de Jager, B. C. Raubenheimer, H. I. Nel, A. R. North, D. A. H. Buckley, & C. Koen ON THE FORMATION AND EVOLUTION OF SUPER-ASYMPTOTIC GIANT BRANCH STARS WITH CORES PROCESSED BY CARBON BURNING. I. SPICA TO ANTARES Enrique Garcia-Berro & Icko Iben, Jr. A CCD SURVEY FOR FAINT HIGH-LATITUDE CARBON STARS Paul J. Green, Bruce Margon, Scott F. Anderson, & Kem H. Cook FLAT SPECTRUM T TAURI STARS: THE CASE FOR INFALL Nuria Calvet, Lee Hartmann, Scott J. Kenyon, & Barbara A. Whitney SPECTRAL EVOLUTION DURING PRE-ECLIPSE DIPS IN HERCULES X-1 D. A. Leahy, A. Yoshida, & M. Matsuoka AN OPTICAL REGION ELEMENTAL ABUNDANCE ANALYSIS OF THE CHEMICALLY PECULIAR HgMn STAR x LUPI Glenn M. Wahlgren, Saul J. Adelman, & Richard D. Robinson COALESCENCE OF TWO CURRENT LOOPS WITH A KINK INSTABILITY SIMULATED BY A THREE-DIMENSIONAL ELECTROMAGNETIC PARTICLE CODE Ken-Ichi Nishikawa, Jun-ichi Sakai, Jie Zhao, Torsten Neubert, & Oscar Buneman ON THE ABSENCE OF A RELATIONSHIP BETWEEN THE PROPERTIES OF THE 7z = 10° K AND THE 230-E13 PROPERTIES OF THE 7; < 7 x 10° K SOLAR PLASMAS U. Feldman & J. M. Laming ON THE ROTATION RATE IN THE SOLAR CONVECTION ZONE Jesper Schou & Timothy M. Brown VARIATION OF THE FREQUENCIES OF VERY LOW / p-MODES C. Régulo, A. Jiménez, P. L. Pallé, F. Pérez Herndndez, & T. Roca Cortés COLLISIONAL EXCITATION OF Fe x DUE TO ELECTRON IMPACT USING THE R-MATRIX METHOD 230-G12 M. Mohan, A. Hibbert, & A. E. Kingston ERRATA PROPERTIES OF ULTRACOMPACT NEUTRON STARS Robert J. Nemiroff; Peter A. Becker, & Kent S. Wood ON THE INEVITABILITY OF REIONIZATION: IMPLICATIONS FOR COSMIC MICROWAVE BACKGROUND FLUCTUATIONS Max Tegmark, Joseph Silk, & Alain Blanchard CONTENTS. 1994 OCTOBER 20, Number 2 Fiche REDSHIFT AND THE HUBBLE CONSTANT IN CONFORMALLY FLAT SPACETIME 233-Cl Geoffrey Endean THE COSMOLOGICAL DEPENDENCE OF CLUSTER DENSITY PROFILES 233-C9 Mary M. Crone, August E. Evrard, & Douglas O. Richstone CONFRONTATION OF A DOUBLE INFLATIONARY COSMOLOGICAL MODEL WITH OBSERVATIONS 233-D13 Stefan Gottléber, Jan P. Miicket, & Alexei A. Starobinsky THE COSMIC X-RAY BACKGROUND-JRAS GALAXY CORRELATION AND THE LOCAL X-RAY VOLUME EMISSIVITY 233-E9 Takamitsu Miyaji, Ofer Lahav, Keith Jahoda, & Elihu Boldt ACTIVE GALACTIC NUCLEI. V. X-RAY VARIABILITY AND THE BLACK HOLE CLUSTER PARADIGM 233-F9 A, G. Pacholczyk & W. R. Stoeger, S. J. DISK-DRIVEN HYDROMAGNETIC WINDS AS A KEY INGREDIENT OF ACTIVE GALACTIC NUCLEI 233-G9 UNIFICATION SCHEMES Arieh K6nigl & John F. Kartje THE X-RAY SPECTRA OF BLAZARS OBSERVED WITH EXOSAT Rita M. Sambruna, Paul Barr, Paolo Giommi, Laura Maraschi, Gianpiero Tagliaferri, & Aldo Treves MODELING THE DOUBLE-TROUGH STRUCTURE OBSERVED IN BROAD ABSORPTION LINE QSOs USING RADIATIVE ACCELERATION Nahum Arav & Mitchell C. Begelman THE HST QUASAR ABSORPTION LINE KEY PROJECT. IX. AN EMISSION-LINE STUDY OF PG 2251+113 Brian R. Espey, David A. Turnshek, Lincoln Lee, Jacqueline Bergeron, Alec Boksenberg, George F. Hartig, Buell T. Jannuzi, W. L. W. Sargent, Blair D. Savage, Donald P. Schneider, Ray J. Weymann, & Arthur M. Wolfe THE X-RAY AND ULTRAVIOLET ABSORBING OUTFLOW IN 3C 351 Smita Mathur, Belinda Wilkes, Martin Elvis, & Fabrizio Fiore SIMULTANEOUS SYNCHROTRON AND ADIABATIC EFFECTS IN MULTIPLY SHOCKED JETS IN EXTENDED EXTRAGALACTIC RADIO SOURCES Tfeanyi E. Ekejiuba, Paul J. Wiita, & Richard A. Frazin DYNAMO GENERATION OF MAGNETIC FIELDS IN ACCRETION DISKS 234-F10 Arun V. Mangalam & K. Subramanian VARIABLE EMISSION LINES AS EVIDENCE OF SPIRAL SHOCKS IN ACCRETION DISKS AROUND ACTIVE 234-G9 GALACTIC NUCLEI Sandip K. Chakrabarti & Paul J. Wiita A ROSAT OBSERVATION OF THE NEARBY SPIRAL GALAXY NGC 6946 234-A4 Eric M. Schlegel THE NEAR-INFRARED STRUCTURE OF M33 235-B8 Michael W. Regan & Stuart N. Vogel THE 3.28 MICRON EMISSION FEATURE IN NGC 253 235-C13 Paul Kalas & C. G. Wynn- Williams GALACTIC DUAL POPULATION MODELS OF GAMMA-RAY BURSTS 235-D8 J. C. Higdon & R. E. Lingenfelter SEARCH OF THE ENERGETIC GAMMA-RAY EXPERIMENT TELESCOPE (EGRET) DATA FOR HIGH-ENERGY 235-E2 GAMMA-RAY MICROSECOND BURSTS C. E. Fichtel, D. L. Bertsch, B. L. Dingus, J. A. Esposito, R. C. Hartman, S. D. Hunter, G. Kanbach, D. A. Kniffen, Y. C. Lin, J. R. Mattox, H. A. Mayer-Hasselwander, L. McDonald, P. F. Michelson, C. von Montigny, P. L. Nolan, E. J. Schneid, PR. Sreekumar, & D. J. Thompson BATSE GAMMA-RAY BURST LINE SEARCH. II. BAYESIAN CONSISTENCY METHODOLOGY D. L. Band, L. A. Ford, J. L. Matteson, M. Briggs, W. Paciesas, G. Pendleton, R. Preece, D. Palmer, B. Teegarden, & B. Schaefer GENERALIZED COMPTONIZATION MODELS AND APPLICATION TO THE RECENT HIGH-ENERGY OBSERVATIONS 235-F7 Lev Titarchuk MORPHOLOGY OF THE INTERSTELLAR COOLING LINES DETECTED BY COBE 235-G13 C. L. Bennett, D. J. Fixsen, G. Hinshaw, J. C. Mather, S. H. Moseley, E. L. Wright, R. E. Eplee, Jr, J. Gales, T. Hewagama, R. B. Isaacman, R. A. Shafer, & K. Turpie CONTENTS HOT GAS IN THE INTERSTELLAR MEDIUM: A REANALYSIS OF O vi ABSORPTION DATA R. L. Shelton & D. PR. Cox FURTHER MID-INFRARED STUDY OF THE p OPHIUCHI CLOUD YOUNG STELLAR POPULATION: LUMINOSITIES AND MASSES OF PRE-MAIN-SEQUENCE STARS Thomas P. Greene, Bruce A. Wilking, Philippe André, Erick T. Young, & Charles J. Lada THE NATURE OF THE COMPACT X-RAY SOURCE IN THE SUPERNOVA REMNANT G27.4+0.0 236-D9 David J. Helfand, R. H. Becker, G. Hawkins, & R. L. White SPECTROSCOPY OF THE SUPERNOVA REMNANT CTB 1 236-E6 Charles J. Hailey & William W. Craig COOLING THEORY OF CRYSTALLIZED WHITE DWARFS 236-F2 L. Segretain, G. Chabrier, M. Hernanz, E. Garcta-Berro, J. Isern, & R. Mochkovitch THE INFLUENCE OF CRYSTALLIZATION ON THE LUMINOSITY FUNCTION OF WHITE DWARFS 236-G2 M. Hernanz, E. Garcia-Berro, J. Isern, R. Mochkovitch, L. Segretain, & G. Chabrier BETA-DECAY RATES OF fp SHELL NUCLEI WITH A > 60 IN MASSIVE STARS AT THE PRESUPERNOVA STAGE 237-Al K. Kar, A. Ray, & S. Sarkar ACCELERATION EFFICIENCY IN LINE-DRIVEN FLOWS 237-B12 Kenneth G. Gayley & Stanley PR. Owocki s-PROCESS ABUNDANCES FOR !22-!23-124 TELLURIUM 237-C12 J. R. De Laeter THE EARLY ULTRAVIOLET, OPTICAL, AND RADIO EVOLUTION OF THE SOFT X-RAY TRANSIENT 237-D4 GRO J0422+32 C. R. Shrader, R. Mark Wagner, R. M. Hjellming, X. H. Han, & S. G. Starrfield 10 MICRON IMAGING OF UZ TAURI: EVIDENCE FOR CIRCUMSTELLAR DISK CLEARING DUE TO A CLOSE COMPANION STAR A. M. Ghez, J. PR. Emerson, J. R. Graham, M. Meixner, & C. J. Skinner THE PARTICLE-SIZE DISTRIBUTION IN THE DUST EJECTED FROM IRC +10216 237-E12 M. Jura BROKEN SYMMETRY: THE STRUCTURE OF THE DUST ENVELOPE OF IRC +10216 237-F7 Joel H. Kastner & David A, Weintraub THE UNUSUAL Q OF THE MILLISECOND PULSAR 1620-26: THE CONSEQUENCE OF A GIANT GLITCH? 237-G10 K. S. Cheng, N. Chong, & T. M. Lee A SPECTRUM SYNTHESIS PROGRAM FOR BINARY STARS 238-A4 Albert P. Linnell & Ivan Hubeny GAMMA-RAY EMISSION AND ELECTRON ACCELERATION IN SOLAR FLARES 238-B2 Vahé Petrosian, James M. McTiernan, & Holger Marschhduser FLARE PLASMA DYNAMICS OBSERVED WITH THE YOHKOH BRAGG CRYSTAL SPECTROMETER. II. 238-C1 PROPERTIES OF THE Fe xxv, Ca xix, AND S xv RESONANCE LINES John T. Mariska TRANSITION TO TURBULENCE IN SOLAR SURGES Russell B. Dahiburg & Judith T. Karpen THE STUDY OF CORONAL PLASMA STRUCTURES AND FLUCTUATIONS WITH FARADAY ROTATION MEASUREMENTS Takayuki Sakurai & Steven R. Spangler CORONAL MAGNETIC STRUCTURES OBSERVING CAMPAIGN. III. CORONAL PLASMA AND MAGNETIC FIELD DIAGNOSTICS DERIVED FROM MULTIWAVEBAND ACTIVE REGION OBSERVATIONS J. T. Schmelz, G. D. Holman, J. W. Brosius, & R. F. Willson USE OF ACOUSTIC WAVE TRAVEL-TIME MEASUREMENTS TO PROBE THE NEAR-SURFACE LAYERS OF THE SUN S. M. Jefferies, Y. Osaki, H. Shibahashi, T. L. Duvall, Jr, J. W. Harvey, & M. A. Pomerantz SOLAR p-MODE FREQUENCIES AND THEIR DEPENDENCE ON SOLAR ACTIVITY: RECENT RESULTS FROM THE BISON NETWORK Y. Elsworth, R. Howe, G. R. Isaak, C. P. McLeod, B. A. Miller, R. New, C. C. Speake, & S. J. Wheeler GROUND-BASED DETECTION OF AN INFRARED [Si x] CORONAL EMISSION LINE AND IMPROVED 239-A10 WAVELENGTHS FOR THE INFRARED [Fe xm] EMISSION LINES M. J. Penn & J. R. Kuhn CONTENTS RELATIVE EMISSION-LINE STRENGTHS FOR THE 146 AND 63 MICRON TRANSITIONS IN O 1 AND A COMPARISON WITH FAR-INFRARED OBSERVATIONS OF PHOTODISSOCIATION REGIONS F. P. Keenan, E. S. Conlon, & R. H. Rubin THEORETICAL OSCILLATOR STRENGTHS FOR INFRARED ELECTRONIC TRANSITIONS OF Siz AND SiC 239-B11 Fouad L. Sefyani & Joél Schamps ABSTRACTS OF THE ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 1994 NOVEMBER ATLAS OF QUASAR ENERGY DISTRIBUTIONS Martin Elvis, Belinda J. Wilkes, Jonathan C. McDowell, Richard F. Green, Jill Bechtold, S. PR. Willner, M. S. Oey, Elisha Polomski, & Roc Cutri PosITION ANGLES AND ALIGNMENTS OF CLUSTERS OF GALAXIES 239-C8 Manolis Plionis SuRVEY OF EmIssiOoN-LINE GALAXIES: UNIVERSIDAD COMPLUTENSE DE MADRID LIsT. I. 239-C9 J. Zamorano, M. Rego, J. Gallego, A. G. Vitores, R. Gonzdlez-Riestra, & G. Rodriguez-Caderot SLINGsHor EJECTIONS FROM CLUSTERS OF THREE AND Four BLAck HOLEs 239-C9 M. J. Valtonen, S. Mikkola, P-H eindmdaki, & H. Valt EmIssION LINES FROM CONDENSING INTRACLUSTER GAS 239-C9 G. Mark Voit, Megan Donahue, & Jonathan D. Slavin COMPREHENSIVE STELLAR POPULATION MODELS AND THE DISENTANGLEMENT OF AGE AND METALLICITY EFFECTS 239-C10 Guy Worthey A SAMPLE OF GIGAHERTZ PEAKED SPECTRUM CANDIDATE RADIO SouRCES LOCATED SouTH OF 6 = —9°5 239-C10 J. C. Cersosimo, M. Lebron Santos, S. I. Cintrén, & Z. M. Quiniento AN ATLAS OF ULTRAVIOLET P CYGNI PROFILES 239-Cll Theodore P. Snow, Henny J. G. L. M. Lamers, Douglas M. Lindholm, & Andrew P. Odell INDEX TO VOLUMES 432-434, PARTS 1 AND 2 239-D1