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THE ASTROPHYSICAL JOURNAL LETTERS CONTENTSO F VOLUME 521, PART 2 1999 AUGUST 10, NUMBER | THE MASS POWER SPE(¢ ( ne-Pei Ma. R. R. ¢ BIAS AND HIERARCHI( Peter ¢ \ nL. M X-RAY EMISSION FROM TI Zoltan Haimar \ FORMATION OF LARGE-S(¢ CIRCUMNUCLEAR STARBUR Ken Ohsuga and Ma [ FINDING GRAVITATIONAI Mur ( S. A HE BRIGHT SHARC SURVE’ R. C. Nichol. A. K. Ron } DETECTION OF CO ( L. Cari K VU Me AND 22 GHz VLBI OBSERVATIO Luis Gome Alan P. M SIMULTANEOUS X-RAY AND GAMMA-RAY OBSER AND PROBING THE INFRARED EXTRAGALAC Paolo §. Coppi and Felix A. Ahar rRIPLE BARS AND COMPLEX CENTRAL STRU¢ Peter DISCOVERY OF A NONTHERMAL GALA(¢ PARALLEL TO THE GALACTIC PLANE ( rneiia ¢ Lang K. R. Anar iran \ METHODO F MASS MEASUREMENT IN BLACK HOLE BINARIES USING TIMIN( AND HIGH-RESOLUTION X-RAY SPECTROSCOPY 4. Vikhlinin DISCOVERY OF A THIRD HARMONIC CYCLOTRON RESONANCE SCATTERING FEATURI IN THE X-RAY SPECTRUM OF 4U 0115+¢ W. A. Heindl. W. Coburn. D. E. Gruber. M. f ACCRETION FLOWS: THE ROLE OF THE OUTER BOUNDARY CONDITION Feng Yuan ON THE VERY LONG TERM EVOLUTIONARY BEHAVIOR OF HYDROGEN-ACCRETIN( LOW-MCAO SWSHIT E DWARFS Luciano Piersanti, Santi Cassisi, Ich DETECTION OF H, PURE ROTATIONAL LINE EMISSION FROM THE GG TAURI BINARY SYSTEM Wing-Fai Thi, Ewine F. van Dishoeck, Geoffre 4. Blake, Gerd-Jan van Zadelhoff. and Michiel R. H DETECTION OF INTERSTELLAR H,D’ EMISSION Ronald Stark, Floris F. S. van der Tak, and Ewine F in D DETECTION OF THE 62 MICRON CRYSTALLINE H.O ICE FEATURE IN EMISSION TOWARD HH WITH THE INFRARED SPACE OBSERVATORY LONG-WAVELENGTH SPECTROMETER Sergio Molinari, Cecilia Ceccarelli, Glenn J. White, Pac Saraceno, Brunella Nisini, Teresa Giannir EVIDENCE FOR CHROMOSPHERIC EVAPORATION IN THE LATE GRADUAL FLARI PHASE FROM SOHO/CDS OBSERVATIONS 4. Czaykowska, B. De Pontieu, D. Alexander, and G. Rank INSTRUCTIONS TO AUTHORSO F LETTERS, AND RECENT LETTERS ABSTRACTS AND OTHER BIBLIOGRAPHICAL SERVICES INSTRUCTIONS FOR ELECTRONIC MANUSCRIPT SUBMISSION CONTENTS 1999 AUGUST 20, NUMBER 2 A MEASUREMENT OF THE ANGULAR POWER SPECTRUM OF THE MICROWAVE BACKGROUND MADE FROM THE HIGH CHILEAN ANDES E. Torbet, M. J. Devlin, W. B. Dorwart, T. Herbig, A. D. Miller, M. R. Nolta, L. Page, J. Puchalla, and H. T. Tran THE PROJECTED THREE-POINT CORRELATION FUNCTION: THEORY AND OBSERVATIONS Joshua A, Frieman and Enrique Gaztafiaga NEW LIMITS ON Q, AND Q,, FROM OLD GALAXIES AT HIGH REDSHIFT J. §. Alcaniz and J. A. S. Lima THE EFFECT OF ABUNDANCE VARIATIONS ON ESTIMATES OF THE DENSITIES OF BROAD-LINE REGION CLOUDS IN QUASARS Stephanie A. Snedden and C. Martin Gaskell KEPLERIAN MOTION OF BROAD-LINE REGION GAS AS EVIDENCE FOR SUPERMASSIVE BLACK HOLES IN ACTIVE GALACTIC NUCLEI Bradley M. Peterson and Amri Wandel A SIMULATION OF GALAXY FORMATION AND CLUSTERING F. R. Pearce, A. Jenkins, C. S. Frenk, J. M. Colberg, S. D. M. White, P. A. Thomas, H. M. P. Couchman, J. A. Peacock, and G. Efstathiou (The Virgo Consortium) THE ELECTRON-SCATTERING REGION IN SEYFERT NUCLEI Yoshiaki Taniguchi and Naohisa Anabuki MOLECULAR GAS IN THE POWERFUL RADIO NUCLEUS OF THE ULTRALUMINOUS INFRARED GALAXY PKS 1345+12 A. S. Evans, D. C. Kim, J. M. Mazzarella, N. Z. Scoville, and D. B. Sanders GRB 970228 REVISITED: EVIDENCE FOR A SUPERNOVA IN THE LIGHT CURVE AND LATE SPECTRAL ENERGY DISTRIBUTION OF THE AFTERGLOW Daniel E. Reichart SHADING AND SMOTHERING OF GAMMA-RAY BURSTS David Eichler and Amir Levinson MASS DETERMINATION OF BLACK HOLES IN LMC X-| AND NOVA MUSCAE 1991 FROM THEIR HIGH-ENERGY SPECTRA C. R. Shrader and Lev Titarchuk AN EUVE OBSERVATION OF THE GLOBULAR CLUSTER M15: THE FIRST DETECTION OF A LOW-MASS X-RAY BINARY? Paul J. Callanan, Jeremy J. Drake, and Antonella Fruscione A DISK CENSUS FOR THE NEAREST GROUP OF YOUNG STARS: MID-INFRARED OBSERVATIONS OF THE TW HYDRAE ASSOCIATION Ray Jayawardhana, Lee Hartmann, Giovanni Fazio, R. Scott Fisher, Charles M. Telesco, and Robert K. Piria DIAMOND INFRARED EMISSION BANDS IN CIRCUMSTELLAR MEDIA O. Guillois, G. Ledoux, and C. Reynaud THE REVISED COMPTEL ORION RESULTS H. Bloemen, D. Morris, J. Knédlseder, K. Bennett, R. Diehl, W. Hermsen, G. Lichti, R. D. van der Meulen, U. Oberlack, J. Ryan, V. Schénfelder, A. W. Strong, C. de Vries, and C. Winkler DOES THE SUN HAVE A FULL-TIME CHROMOSPHERE? Wolfgang Kalkofen, Peter Ulmschneider, and Eugene H. Avrett ON THE DISAGREEMENT BETWEEN ATMOSPHERIC AND CORONAL ELECTRON DENSITIES Ruth Esser and Dimitar Sasselov THE H, LATITUDINAL PROFILE OF SATURN Tom Stallard, Steve Miller, Gilda E. Ballester, Daniel Rego, Robert D. Joseph, and Laurence M. Trafton FIRST ASTRONOMICAL APPLICATION OF A CRYOGENIC TRANSITION EDGE SENSOR SPECTROPHOTOMETER R. W. Romani, A. J. Miller, B. Cabrera, E. Figueroa-Feliciano, and S. W. Nam INSTRUCTIONS TO AUTHORS OF LETTERS, AND RECENT LETTERS ABSTRACTS AND OTHER BIBLIOGRAPHICAL SERVICES Inside Back Cover INSTRUCTIONS FOR ELECTRONIC MANUSCRIPT SUBMISSION Back Cover