Table Of Content

THE ASTROPHYSICAL JOURNAL LETTERS CONTENTS OF VOLUME 612, PART 2 2004 SEPTEMBER 1, NUMBER | CONSTRAINTS ON SCALAR-FIELD DARK ENERGY FROM GALAXY CLUSTER GAS MASS FRACTION VERSUS REDSHIFT DATA Gang Chen and Bharat Ratra THE COMPACT GROUP OF GALAXIES HCG 31 IN AN EARLY PHASE OF MERGING P. Amram, C. Mendes de Oliveira, H. Plana, C. Balkowski, O. Hernandez, C. Carignan, E. 8. Cypriano, L. Sodré, Jr., J. L. Gach, and J. Boulesteix STRONG TURBULENCE IN THE COOL CORES OF GALAXY CLUSTERS: CAN TSUNAMIS SOLVE THE COOLING FLOW PROBLEM? Yutaka Fujita, Tomoaki Matsumoto, and Keiichi Wada BULGELESS GALAXIES AND THEIR ANGULAR MOMENTUM PROBLEM Elena D’Onghia and Andreas Burkert ON BARS, BULGES, AND THE FUELING OF ACTIVE GALACTIC NUCLEI Rosemary F. G. Wyse LOGNORMAL X-RAY FLUX VARIATIONS IN AN EXTREME NARROW-LINE SEYFERT | GALAXY L21 C. Martin Gaskell THE HELIUM ABUNDANCES OF w CENTAURI John E. Norris THE ROLE OF PRESSURE IN GIANT MOLECULAR CLOUD FORMATION L29 Leo Blitz and Erik Rosolowsky ULTRAVIOLET ABSORPTION IN AMORPHOUS CARBONS: POLYCYCLIC AROMATIC HYDROCARBONS AND THE 2175 A EXTINCTION FEATURE W. W. Duley and S. Lazare\ TYPE la SUPERNOVA EXPLOSION: GRAVITATIONALLY CONFINED DETONATION T. Plewa, A. C. Calder, and D. Q. Lamb FAST-WAVE POLARIZATION, CHARGE HORIZONS, AND THE TIME EVOLUTION OF FORCE-FREE MAGNETOSPHERES L4] Brian Punsly SHOT CUTOFF TIMESCALES IN DIFFERENT SPECTRAL STATES OF CYGNUS X-1 Hua Feng, Shuang-Nan Zhang, and Ti-Pei Li A FIRST XMM-NEWTON LOOK AT THE RELATIVISTIC DOUBLE PULSAR PSR J0737—3039 L49 A. Pellizzoni, A. De Luca, S. Mereghetti, A. Tiengo, F. Mattana, P. Caraveo, M. Tavani, and G. F. Bignami SURFACE HYDROGEN-BURNING MODELING OF SUPERSOFT X-RAY BINARIES: ARE THEY TYPE la SUPERNOVA PROGENITORS? S. Starrfield, F. X. Timmes, W. R. Hix, E. M. Sion, W. M. Sparks, and S. J. Dwyer THE NATURE OF PREMAXIMUM HALTS OF CLASSICAL NOVA OUTBURSTS: V723 CASSIOPEIAE AND V463 SCUTI © Izumi Hachisu and Mariko Kato ON THE OXYGEN ABUNDANCE OF HE 0107-5240 L6l M. S. Bessell, N. Christlieb, and B. Gustafsson RESOLVING X-RAY SOURCES FROM B STARS SPECTROSCOPICALLY: THE EXAMPLE OF » LEPORIS © L65 Ehud Behar, Maurice Leutenegger, Rami Doron, Manuel Giidel, Uri Feldman, Marc Audard, and Steven M. Kahn FREE-FREE RADIO EMISSION FROM YOUNG STELLAR OBJECTS L69 Hsien Shang, Susana Lizano, Al Glassgold, and Frank Shu THE CORE ACCRETION MODEL PREDICTS FEW JOVIAN-MASS PLANETS ORBITING RED DWARFS Gregory Laughlin, Peter Bodenheimer, and Fred C. Adams DISCOVERY OF CRYSTALLINE SILICATES IN COMET C/2001 Q4 (NEAT) Diane H. Wooden, Charles E. Woodward, and David E. Harker RECYCLING OF THE SOLAR CORONA’S MAGNETIC FIELD L81 R. M. Close, C. E. Parnell, D. W. Longcope, and E. R. Priest THE USEFULNESS AND LIMITS OF CORONAGRAPHY IN THE PRESENCE OF PINNED SPECKLES C. Aime and R. Soummer CONTENTS INSTRUCTIONS TO AUTHORS OF LETTERS, AND ADDITIONAL USEFUL INFORMATION Inside Back Cover INSTRUCTIONS FOR ELECTRONIC MANUSCRIPT SUBMISSION Back Cover 2004 SEPTEMBER 10, NUMBER 2 A VERY LARGE TELESCOPE FORS2 MULTISLIT SEARCH FOR Lya-EMITTING GALAXIES AT z ~ 6.5 Kim-Vy H. Tran, Simon J. Lilly, David Crampton, and Mark Brodwin CANDIDATES OF z = 5.5-7 GALAXIES IN THE HUBBLE SPACE TELESCOPE ULTRA DEEP FIELD © Haojing Yan and Rogier A. Windhorst MOLECULAR GAS AT HIGH REDSHIFT: JET-INDUCED STAR FORMATION? ©) I. J. Klamer, R. D. Ekers, E. M. Sadler, and R. W. Hunstead CONSTRAINING Q,, AND DARK ENERGY WITH GAMMA-RAY BURSTS © Z. G. Dai, E. W. Liang, and D. Xu SUPERNOVA LIGHT-CURVE MODELS FOR THE BUMP IN THE OPTICAL COUNTERPART OF X-RAY FLASH 030723 N. Tominaga, J. Deng, P. A. Mazzali, K. Maeda, K. Nomoto, E. Pian, J. Hjorth, and J. P. U. Fynbo IDENTIFYING HIGH-REDSHIFT ACTIVE GALACTIC NUCLEI USING X-RAY HARDNESS L109 J. X. Wang, S. Malhotra, J. E. Rhoads, and C. A. Norman THE REVERBERATION RADIUS OF THE CENTRAL DUST HOLE IN NGC 5548 Masahiro Suganuma, Yuzuru Yoshii, Yukiyasu Kobayashi, Takeo Minezaki, Keigo Enya, Hiroyuki Tomita, Tsutomu Aoki, Shintaro Koshida, and Bruce A. Peterson A NEW GIANT STELLAR STRUCTURE IN THE OUTER HALO OF M31 Daniel B. Zucker, Alexei Y. Kniazev, Eric F. Bell, David Martinez-Delgado, Eva K. Grebel, Hans-Walter Rix, Constance M. Rockosi, JonA , Holtzman, Rene A. M. Walterbos, Zeljko Ivezié, J. Brinkmann, Howard Brewington, Michael Harvanek, S. J. Kleinman, Jurek Krzesinski, Don Q. Lamb, Dan Long, Peter R. Newman, Atsuko Nitta, and Stephanie A. Snedden ANDROMEDA IX: A NEW DWARF SPHEROIDAL SATELLITE OF M31 Daniel B. Zucker, Alexei Y. Kniazev, Eric F. Bell, David Martinez-Delgado, Eva K. Grebel, Hans-Walter Rix, Constance M. Rockosi, Jon A. Holtzman, Rene A. M. Walterbos, James Annis, Donald G. York, Zeljko Ivezié, J. Brinkmann, Howard Brewington, Michael Harvanek, Greg Hennessy, S. J. Kleinman, Jurek Krzesinski, Dan Long, Peter R. Newman, Atsuko Nitta, and Stephanie A. Snedden A MICROGLITCH IN THE MILLISECOND PULSAR PSR B1821—24 IN M28 Ismaél Cognard and Donald C. Backer DISCOVERY OF NEW ULTRACOOL WHITE DWARFS IN THE SLOAN DIGITAL SKY SURVEY Evalyn Gates, Geza Gyuk, Hugh C. Harris, Mark Subbarao, Scott Anderson, S. J. Kleinman, James Liebert, Howard Brewington, J. Brinkmann, Michael Harvanek, Jurek Krzesinski, Don Q. Lamb, Dan Long, Eric H. Neilsen, Jr., Peter R. Newman, Atsuko Nitta, and Stephanie A. Snedden DETECTION OF He 11 4686 IN » CARINAE J. E. Steiner and A, Damineli ON THE PLANET AND THE DISK OF CoKu TAURI/4 Alice C. Quillen, Eric G. Blackman, Adam Frank, and Peggy Varniére INSTRUCTIONS TO AUTHORS OF LETTERS, AND ADDITIONAL USEFUL INFORMATION Inside Back Cover INSTRUCTIONS FOR ELECTRONIC MANUSCRIPT SUBMISSION Back Cover