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THE ASTROPHYSICAL JOURNAL LETTERS CONTENTS OF VOLUME 533, PART 2 2000 APRIL 10, NUMBER | EVOLUTION OF LYMAN BREAK GALAXIES BEYOND z = 4 Renyue Cen METALLICITY EVOLUTION IN THE EARLY UNIVERSE Jason X. Prochaska and Arthur M. Wolfe DETECTION AND MAPPING OF DECOUPLED STELLAR AND IONIZED GAS STRUCTURES IN THE ULTRALUMINOUS INFRARED GALAXY IRAS 12112+0305 Luis Colina, Santiago Arribas, Kirk D. Borne, and Ana Monreal DUST EMISSION FROM HIGH-REDSHIFT QSOs C. L. Carilli, F. Bertoldi, K. M. Menten, M. P. Rupen, E. Kreysa, Xiaohui Fan, Michael A. Strauss, Donald P. Schneider, A. Bertarini, M. S. Yun, and R. Zylka THE DISCOVERY OF AN EMBEDDED CLUSTER OF HIGH-MASS STARS NEAR SGR 1900+ 14 Frederick J. Vrba, Arne A. Henden, Christian B. Luginbuhl, Harry H. Guetter, Dieter H. Hartmann, and Sylvio Klose GAMMA-RAY BURST HOST GALAXIES HAVE “NORMAL” LUMINOSITIES Bradley E. Schaefer THE GALACTIC WORM GW 123.4—1.5: A MUSHROOM-SHAPED H 1 CLOUD Jayanne English, A. R. Taylor, S. Y. Mashchenko, Judith A. Irwin, Shantanu Basu, and Doug Johnstone CHANDRA OBSERVATIONS OF THE CRAB-LIKE SUPERNOVA REMNANT G21.5—0.9 Patrick Slane, Yang Chen, Norbert S. Schulz, Frederick D. Seward, John P. Hughes, and Bryan M. Gaensler A BROAD 22 MICRON EMISSION FEATURE IN THE CARINA NEBULA H nt REGION Kin-Wing Chan and Takashi Onaka A SINGLE CIRCUMBINARY DISK IN THE HD 98800 QUADRUPLE SYSTEM D. W. Koerner, E. L. N. Jensen, K. L. Cruz, T. B. Guild, and K. Gultekin AGES OF LATE SPECTRAL TYPE VEGA-LIKE STARS Inseok Song, J.-P. Caillault, David Barrado y Navascués, John R. Stauffer, and Sofia Randich J-BAND INFRARED SPECTROSCOPY OF A SAMPLE OF BROWN DWARFS USING NIRSPEC ON KECK II lan S. McLean, Mavourneen K. Wilcox, E. E. Becklin, Donald F. Figer, Andrea M. Gilbert, James R. Graham, James E. Larkin, N. A. Levenson Harry I. Teplitz, and J. Davy Kirkpatrick 2 MICRON SPECTROSCOPY WITHIN 073 OF SAGITTARIUS A* , Donald F. Figer, E. E. Becklin, lan S. McLean, Andrea M. Gilbert, James R. Graham, James E. Larkin, N. A. Levenson, Harry 1. Teplitz, Mavourneen K. Wilcox, and Mark Morris HOT STARS AND COOL CLOUDS: THE PHOTODISSOCIATION REGION M16 N. A. Levenson, James R. Graham, lan S. McLean, E. E. Becklin, Donald F. Figer, Andrea M. Gilbert, James E. Larkin, Harry I. Teplitz, and Mavourneen K. Wilcox INFRARED SPECTROSCOPY OF A MASSIVE OBSCURED STAR CLUSTER IN THE ANTENNAE GALAXIES (NGC 4038/9) WITH NIRSPEC Andrea M. Gilbert, James R. Graham, Ian S. McLean, E. E. Becklin, Donald F. Figer, James E. Larkin, N. A. Levenson, Harry 1. Teplitz, and Mavourneen K. Wilcox DISCOVERY OF AN OBSCURED BROAD-LINE REGION IN THE HIGH-REDSHIFT RADIO GALAXY MRC 2025-218 James E. Larkin, lan S. McLean, James R. Graham, E. E. Becklin, Donald F. Figer, Andrea M. Gilbert, N. A. Levenson, Harry 1. Teplitz, Mavourneen K. Wilcox, and Tiffany M. Glassman THE REST-FRAME OPTICAL SPECTRUM OF MS 1512~—cB58 Harry I. Teplitz, lan S. McLean, E. E. Becklin, Donald F. Figer, Andrea M. Gilbert, James R. Graham, James E. Larkin, N. A. Levenson, Mavourneen K. Wilcox ERRATUM THE ORBITAL PERIOD OF THE ACCRETING PULSAR GX | + 4 M. G.Pereira, J.Braga, and F. J. Jablonski INSTRUCTIONS TO AUTHORS OF LETTERS, AND ADDITIONAL USEFUL INFORMATION Inside Back Cover INSTRUCTIONS FOR ELECTRONIC MANUSCRIPT SUBMISSION Back Cover CONTENTS 2000 APRIL 20, NUMBER LARGE-SCALE MOTIONSI N SUPERCLUSTERS: THEIR IMPRINT IN THE COSMIC MICROWAVE BACKGROUND Antonaldo Diaferio, Rashid A. Sunyaev, and Adi Nusser DISCOVERY OF A COLOR-SELECTED QUASAR AT z = 5.50 Daniel Stern, Hyron Spinrad, Peter Eisenhardt, Andrew J. Bu> nker, Steve Dawson, S. A. Stanford, and Richard Elston THOMSON THICK X-RAY ABSORPTION IN A BROAD ABSORPTION LINE QUASAR, PG 0946+ 301 S. Mathur, P. J. Green, N. Arav, M. Brotherton, M. Crenshaw, M. deKool, M. Elvis, R. W. Goodrich, F.H amann, D. C. Hines, V. Kashyap, K. Korista, B. M. Peterson, J. C. Shields, 1. Shlosman, W. van Breugel, and M. Voit GRAVITATIONAL LENSING EFFECT ON THE TWO-POINT CORRELATION OF HOT SPOTS IN THE COSMIC MICROWAVE BACKGROUND Masahiro Takada, Etichiro Komatsu, and Toshifumi Futamase ADAPTIVE OPTICS IMAGINGO F THE CLASS GRAVITATIONAL LENS SYSTEM B1359+154 WITH THE CANADA-FRANCE-HAWAII TELESCOPE D. Rusin, P. B. Hall, R. C. Nichol, D. R. Marlow, A. M. S. Richards, and S. T. Myers DETECTING THE GRAVITATIONAL REDSHIFT OF CLUSTER GAS Tom Broadhurst and Evan Scannapieco THE BARYONIC TULLY-FISHER RELATION S. S. McGaugh, J. M. Schombert, G. D. Bothun, and W. J. G. de Blok OPTICAL GRAVITATIONAL LENSING EXPERIMENT CEPHEIDS HAVE LOWER AMPLITUDES IN THE SMALL MAGELLANIC CLOUD THAN IN THE LARGE MAGELLANIC CLOUD Bohdan Pac IVNSAL Gnd Bart Pindo1 4 DIRECT DISTANCE TO THE LARGE MAGELLANIC CLOUD CEPHEID HV 12198 FROM THE INFRARED SURFACE BRIGHTNESS TECHNIQUE W. P. Gieren, J. Storm, P. Fouqué, R. E. Mennickent, and M. Gomez ACCRETION RATES ONTO MASSIVE BLACK HOLES IN FOUR QUIESCENT ELLIPTICAL GALAXIES J. M. Wrobel and J. R. Herrnstein EXTRACTING ENERGY FROM A BLACK HOLE THROUGH ITS DISK Li-Xin Li EVIDENCE FOR TeV EMISSION FROM GRB 970417a R. Atkins, W. Benbow, D. Berley, M. L. Chen, D. G. Coyne, B. L. Dingus, D. E. Dorfan, R. W. Ellsworth, D. Evans, A. Falcone, L. Fleysher, R. Fleysher, G. Gisler, J. A. Goodman, T. J. Haines, C. M. Hoffman, S. Hugenberger, L. A. Kelley, 1. Leonor, M. McConnell, J. F. McCullough, J. E. McEnery, R. S. Miller, A. 1. Mincer, M. F. Morales, P. Nemethy, J. M. Ryan, B. Shen, A. Shoup, C. Sinnis, A. J. Smith, G. W. Sullivan, T. Tumer, K. Wang, M. O. Wascko, S. Westerhoff, D. A. Williams, T. Yang, and G. B. Yodh ULTRA-HIGH-ENERGY COSMIC RAYS FROM YOUNG NEUTRON STAR WINDS P. Blasi, R. I. Epstein, and A. V. Olinto REARRANGEMENT OF THE FERMI SURFACE OF DENSE NEUTRON MATTER AND THE DIRECT URCA COOLING OF NEUTRON STARS D. N. Voskresensky, V. A. Khodel, M. V. Zverev, and J. W. Clark DETECTION OF A 5 Hz QUASI-PERIODIC OSCILLATION FROM X-RAY NOVA GRS 1739-278 K. N. Borozdin and S. P. Trudolyuboy HIGH-RESOLUTION SPECTROSCOPY OF THE X-RAY-PHOTOiONIZED WIND IN CYGNUS X-3 WITH THE CHANDRA HIGH-ENERGY TRANSMISSION GRATING SPECTROMETER Frits Paerels, Jean Cottam, Masao Sako, Duane A. Liedahl, A. C. Brinkman, R. L. J. van der Meer, J. S. Kaastra, and P. Predehl EVIDENCE OF MULTIPLE r-PROCESS SITES IN THE EARLY GALAXY: NEW OBSERVATIONS OF CS 22892—052 Christopher Sneden, John J. Cowan, Inese 1. vans, George M. Fuller, Scott Burles, Timothy C. Beers, and James E. Lawler LISSINEI DISCOVERY OF A BINARY COMPANION G. H. Moriarty-Schieven, J. A. Powers, H. M. Butner, P. G. Wannier, and Jocelyn Keene A HIGH-ECCENTRICITY LOW-MASS COMPANION TO HD 89744 Sylvain G. Korzennik, Timothy M. Brown, Debra A. Fischer, Peter Nisenson, and Robert W. Noyes ON STELLAR ACTIVITY ENHANCEMENT DUE TO INTERACTIONS WITH EXTRASOLAR GIANT PLANETS Manfred Cuntz, Steven H. Saar, and Zdzislaw E. Musielak CONTENTS AN IMPROVED RED SPECTRUM OF THE METHANE OR T DWARF SDSS 1624+0029: THE ROLE OF THE ALKALI METALS James Liebert, i. Neill Reid, Adam Burrows, Adam J. Burgasser, J. Davy Kirkpatrick, and John E. Gizis DEVELOPING A RADIATIVE SHOCK EXPERIMENT RELEVANT TO ASTROPHYSICS K. Shigemori, T. Ditmire, B. A. Remington, V. Yanovsky, D. Ryutov, K. G. Estabrook, M. J. Edwards, A. J. MacKinnon, A. M. Rubenchik, K. A. Keilty, and E. Liang DEEPLY PENETRATING BANDED ZONAL FLOWS IN THE SOLAR CONVECTION ZONE R. Howe, J. Christensen-Dalsgaard, F. Hill, R. W. Komm, R. M. Larsen, J. Schou, M. J. Thompson, and J. Toomre RADIO DETECTION OF A RAPID DISTURBANCE LAUNCHED BY A SOLAR FLARE S. M. White, P. Janardhan, and M. R. Kundu CRITICAL SELF-ORGANIZATION OF ASTROPHYSICAL SHOCKS M. A. Malkov, P. H. Diamond, and H. J. Vélk MEASUREMENT OF CHARGE EXCHANGE AND X-RAY EMISSION CROSS SECTIONS FOR SOLAR WIND-COMET INTERACTIONS J. B. Greenwood, I. D. Williams, S. J. Smith, and A. Chutjian TRANSITION PROBABILITIES FOR THE 1815 AND 3344 A FORBIDDEN LINES OF Ne 11 Adrian Daw, William H. Parkinson, Peter L. Smith, and Anthony G. Calamai EIGENVECTOR SKY SUBTRACTION Michael J. Kurtz and Douglas J. Mink INSTRUCTIONS TO AUTHORS OF LETTERS, AND ADDITIONAL USEFUL INFORMATION Inside Back Cover INSTRUCTIONS FOR ELECTRONIC MANUSCRIPT SUBMISSION Back Cover