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THE ASTROPHYSICAL JOURNAL CONTENTS OF VOLUME 393, PART 1 1992 JULY 1, Number 1 THE ASTROPHYSICAL JOURNAL VIDEOTAPES Helmut A. Abt STATISTICAL PROPERTIES OF GRAVITATIONAL LENSES WITH A NONZERO COSMOLOGICAL CONSTANT M. Fukugita, T. Futamase, M. Kasai, & E. L. Turner . A HYDRODYNAMIC TREATMENT OF THE COLD DARK MATTER COSMOLOGICAL SCENARIO 114-C12 Renyue Cen & Jeremiah Ostriker THE FORMATION OF COSMIC STRUCTURE IN A TEXTURE-SEEDED COLD DARK MATTER COSMOGONY Andrew K. Gooding, Changbom Park, David N. Spergel, Neil Turok, & J. Richard Gott III STATISTICAL METHODS FOR INVESTIGATING PERIODICITIES IN DOUBLE-GALAXY REDSHIFTS W. J. Cocke MULTICOLOR IMAGES OF SPATIALLY RESOLVED STRUCTURES AROUND HIGH-REDSHIFT QUASARS 114-G12 Matthew D. Lehnert, Timothy M. Heckman, Kenneth C. Chambers, & George K. Miley THREE-EPOCH VLBI OBSERVATIONS OF THE NUCLEUS IN THE LOBE-DOMINATED QUASAR 3C 334 D. H. Hough, A. C. S. Readhead, D. A. Wood, Jr. & J. J. Feldmeier COMMENT ON RED GIANT ENVELOPES AS BROAD EMISSION-LINE CLOUDS IN ACTIVE GALACTIC NUCLEI John Kwan, F. Z. Cheng, & Zongwei Li THE SPATIAL DISTRIBUTION OF ACTIVE GALACTIC NUCLEI. I. THE DENSITY OF SEYFERT GALAXIES AND LINERS John Huchra & Richard Burg OPTICAL SPECTROSCOPY AND NARROW-BAND IMAGES OF THE VARIABLE SEYFERT 1 GALAXY NGC 3783 115-Cll Claudia Winge, M. G. Pastoriza, T. Storchi-Bergmann, & S. Lipari CORRELATED HARD X-RAY AND ULTRAVIOLET VARIABILITY IN NGC 5548 115-El J. Clavel, K. Nandra, F. Makino, K. A. Pounds, G. A. Reichert, C. M. Urry, W. Wamsteker, M. Peracaula-Bosch, G. C. Stewart, & C. Otani THE RELATION OF DUST AND ATOMIC GAS PROPERTIES OF GALAXIES 115-F1 John G. Spitzak & Stephen E. Schneider THE X-RAY SPECTRA OF GALAXIES. II. AAERAGE SPECTRAL PROPERTIES AND EMISSION MECHANISMS 115-F12 D.-W. Kim, G. Fabbiano, & G. Trinchieri DISTANCE AND KINEMATICS OF THE W49N H20 MASER OUTFLOW 116-Al C. R. Gwinn, J. M. Moran, & M. J. Reid NONLINEAR RESTRICTIONS ON DYNAMO ACTION Samuel I. Vainshtein & Fausto Cattaneo RECOGNITION AND CHARACTERIZATION OF HIERARCHICAL INTERSTELLAR STRUCTURE. II. STRUCTURE TREE STATISTICS Padraig Houlahan & John Scalo ESTIMATES OF N2 ABUNDANCES IN DENSE MOLECULAR CLOUDS 116-D6 M. Womack, L. M. Ziurys, & S. Wyckoff ULTRAVIOLET, OPTICAL, AND INFRARED OBSERVATIONS OF THE HIGH-LATITUDE MOLECULAR CLOUD a 116-D13 TOWARD HD 210121 Daniel E. Welty & James R. Fowler ACTIVITY AND RADIO SPECTRAL INDEX VARIATIONS NEAR THE CENTER OF THE CRAB NEBULA M. F. Bietenholz & PR. PR. Kronberg CONTENTS Page Fiche THE 0623+71 BOW SHOCK NEBULA 217 116-G3 J. M. Hollis, R. J. Oliversen, R. M. Wagner, & W. A. Feibelman HIGH-RESOLUTION IMAGES OF DUST EMISSION FROM ORION-KL Melvyn Wright, Goeran Sandell, David J. Wilner, & Richard L. Plambeck THE FORMATION OF PRIMORDIAL DEGENERATE PROTOSTARS 117-All Paolo Lenzuni, David F. Chernoff, & Edwin E. Salpeter MINIMUM MASS FOR D AND H BURNING DURING SLOW ACCRETION 117-C12 E. E. Salpeter SHOT NOISE IN GAMMA-RAY BURSTS B M. Belli AN OPACITY MECHANISM FOR THE PULSATIONS OF OB STARS Arthur N. Cox, Siobahn M. Morgan, Forrest J. Rogers, & Carlos A. Iglesias INTERPRETING INFRARED COLOR-COLOR DIAGRAMS: CIRCUMSTELLAR DISKS AROUND LOW- AND INTERMEDIATE-MASS YOUNG STELLAR OBJECTS Charles J. Lada & Fred C. Adams THE NATURE OF THE RECURRENT NOVA T CORONAE BOREALIS: ULTRAVIOLET EVIDENCE FOR A WHITE 117-F12 DWARF ACCRETOR Pier Luigi Selvelli, Angelo Cassatella, & Roberto Gilmozzi SPHERICALLY SYMMETRIC, EXPANDING, NON-LTE MODEL ATMOSPHERES FOR NOVAE DURING THEIR EARLY STAGES P. H. Hauschildt, R. Wehrse, S. Starrfield, & G. Shaviv THE WOLF-RAYET SYSTEM WR 147: A BINARY RADIO SOURCE WITH THERMAL AND NONTHERMAL COMPONENTS E. Churchwell, J. H. Bieging, K. A. van der Hucht, P- M. Williams, T. A. Th. Spoelstra, & D. C. Abbott RADIO EMISSION FROM CHEMICALLY PECULIAR STARS Jeffrey L. Linsky, Stephen A. Drake, & T. S. Bastian ORTHO-PARA-HYDROGEN EQUILIBRATION ON JUPITER Barbara E. Carlson, Andrew A. Lacis, & William B. Rossow MULTIPLICITY-CORRECTED MASS FUNCTION OF MAIN-SEQUENCE STARS IN THE SOLAR NEIGHBORHOOD 118-F10 Sarbani Basu & N. C. Rana FAST DYNAMIC RECONNECTION AT X-TYPE NEUTRAL POINTS 118-Gl11 I. J. D. Craig & P.- G. Watson CORONAL LOOPS: CURRENT-BASED HEATING PROCESSES 119-All P. Beaufumé, B. Coppi, & L. Golub SOLAR OPACITIES BASED ON THE ION-SPHERE AND ION-CORRELATION MODELS Balazs F. Rozsnyai 1992 JULY 10, Number 2 A VIDEOTAPE ACCOMPANIES THIS ISSUE THE VOID SPECTRUM IN TWO-DIMENSIONAL NUMERICAL SIMULATIONS OF GRAVITATIONAL CLUSTERING © Guinevere Kauffmann & Adrian L. Melott THE THREE-POINT FUNCTION IN AN ENSEMBLE OF NUMERICAL SIMULATIONS © J. N. Fry, Adrian L. Melott, & Sergei F. Shandarin COHERENT STRUCTURES IN THE UNIVERSE AND THE ADHESION MODEL & Lev Kofman, Dmitri Pogosyan, Sergei F. Shandarin, & Adrian L. Melott PERCOLATION ANALYSIS OF NONLINEAR STRUCTURES IN SCALE-FREE TWO-DIMENSIONAL SIMULATIONS ©® Kurt G. Dominik & Sergei F. Shandarin CONTENTS ON FORMATION OF THE SUPERLARGE STRUCTURE IN THE UNIVERSE Olga E. Buryak, Marek Demiariski, & Andrej G. Doroshkevich GAUGE-INVARIANT COSMOLOGICAL PERTURBATIONS IN TWO GRAVITATIONALLY COUPLED PERFECT FLUIDS W. Zimdahi A LOWER LIMIT ON THE COSMIC MEAN DENSITY FROM THE AGES OF CLUSTERS OF GALAXIES D. Richstone, A. Loeb, & E. L. Turner TRANSFORMATIONS OF GALAXIES. I. MERGERS OF EQUAL-MASS STELLAR DISKS @ Joshua E. Barnes OFF-CENTER NUCLEI IN GALAXIES © R. H. Miller & B. F: Smith CLASSICAL NOVAE AND THE EXTRAGALACTIC DISTANCE SCALE Mario Livio HIGH-RESOLUTION IMAGING OF VIRGO CLUSTER GALAXIES. I. THE DISTANCE BASED ON THE BRIGHTEST STARS IN NGC 4571 Michael J. Pierce, Robert D. McClure, & René Racine THE TULLY-FISHER RELATION FOR THE CO LINE John M. Dickey & Ilya Kazés THE EVOLUTIONARY HISTORY OF THE INTERACTING GALAXY SYSTEM NGC 7714/7715 (ARP 284) Beverly J. Smith & John F- Wallin EVIDENCE FOR A SUPERMASSIVE BLACK HOLE IN NGC 3115 John Kormendy & Douglas Richstone COLOR GRADIENTS IN COOLING FLOWS IN CLUSTERS OF GALAXIES Brian R. McNamara & Robert W. O’Conneil DUST AND THE TRANSFER OF STELLAR RADIATION WITHIN GALAXIES Adolf N. Witt, Harley A. Thronson, Jr., & John M. Capuano, Jr. THREE-DIMENSIONAL HYDRODYNAMIC SIMULATIONS OF NARROW-ANGLE-TAIL RADIO SOURCES. I. THE BEGELMAN, REES, AND BLANDFORD MODEL @ Dinshaw S. Balsara & Michael L. Norman NEAR-INFRARED IMAGES OF THE NUCLEAR REGION OF NGC 5128 Paula C. Turner, William J. Forrest, Judith L. Pipher, & Mark A. Shure TWIN PEAKS: IC 4329A AND ARAKELIAN 120 P. Marziani, M. Calvani, & J. W. Sulentic SPECTROSCOPIC BINARIES IN THE a PERSEI CLUSTER Nidia Morrell & Helmut A. Abt RIDDLE AND PUZZLE OF THE OPTICAL REGION $122 = 2306+ 1439 124-B10 J. P. Vallée & A. G. de Bruyn A SOLVABLE MODEL OF FUSION RATES IN DENSE STARS Magnus Jandel & Mikael Sahrling NEUTRON STARS AND GRAVITATIONAL SCALARS Helmut W. Zaglauer DISKOSEISMOLOGY: PROBING ACCRETION DISKS. II. G-MODES, GRAVITATIONAL RADIATION REACTION, AND VISCOSITY Michael A. Nowak & Robert V. Wagoner SWINGING SPIRAL WAVES AND ALFVEN TURBULENCE IN ACCRETION DISKS M. Tagger, R. Peilat, & F- V. Coroniti TWO-STREAM, SECOND-ORDER, PROBABILISTIC RADIATIVE TRANSFER 124-F10 I. S. Krinsky & R. C. Puetter ECLIPSE MAPS OF THE ACCRETION DISK IN THE CLASSICAL NOVA V PERSEI 124-G10 Janet H. Wood, Timothy M. C. Abbott, & Allen W. Shafter SHOCK BREAKOUT IN SN 1987A 125-A10 Lisa Ensman & Adam Burrows CONTENTS Fiche PROBING THE HELIOSPHERE WITH ENERGETIC HYDROGEN ATOMS 125-Cl K. C. Hsieh, K. L. Shih, J. R. Jokipii, & S. Grzedzielski STOCHASTIC GYRORESONANT ELECTRON ACCELERATION IN A LOW-BETA PLASMA. I. INTERACTION WITH 125-C10 PARALLEL TRANSVERSE COLD PLASMA WAVES Jiirgen Steinacker & James A. Miller ON THE DIFFERENCES BETWEEN PLAGE AND QUIET SUN IN THE SOLAR PHOTOSPHERE 0 Alan M. Title, Kenneth P. Topka, Theodore D. Tarbell, Wolfgang Schmidt, Christiaan Balke, & Goran Scharmer PREDICTING WOLF’S SUNSPOT NUMBERS WITH AND WITHOUT THE ASSUMPTION OF PERIODICITY Patricia B. Cerrito FAST PLASMOID FORMATION IN DOUBLE ARCADES J. M. Finn, P- N. Guzdar, & J. Chen X-RAY EMISSION-LINE RATIOS IN Mg x1 AS ELECTRON TEMPERATURE DIAGNOSTICS FOR SOLAR FLARES AND ACTIVE REGIONS F. P. Keenan, K. J. H. Phillips, L. K. Harra, E. S. Conlon, & A. E. Kingston THE PARTICLE BACKGROUND OF THE ROSAT PSPC S. L. Snowden, P. P. Plucinsky, U. Briel, G. Hasinger, & E. Pfeffermann LIQUID MIRRORS: OPTICAL SHOP TESTS AND CONTRIBUTIONS TO THE TECHNOLOGY E. F. Borra, R. Content, L. Girard, S. Szapiel, L. M. Tremblay, & E. Boily IMPROVED LABORATORY REST FREQUENCY MEASUREMENTS AND PRESSURE SHIFT AND BROADENING PARAMETERS FOR THE J = 2+ 1 AND J = 3 + 2 ROTATIONAL TRANSITIONS OF CO S. P. Belov, M. Yu. Tretyakov, & R. D. Suenram © This paper is supplemented by a videotape segment.