Georges Meylan (Ed.) QSO Absorption Lines. Proceedings of the ESO Workshop Held at Garching, Germany, November 1994.

Transcription

1 Georges Meylan (Ed.) QSO Absorption Lines Proceedings of the ESO Workshop Held at Garching, Germany, November 1994 Springer

2 Contents PART I INTRODUCTION QSO Absorption Lines: Progress, Problems, and Opportunities R.J. Weymann PART II DAMPED LYMAN-ALPHA SYSTEMS Evolution of the Neutral Gas and Metal Content of Damped Lyman Alpha Systems 13 A.M. Wolfe Consequences of Dust in Damped Lyman Alpha Systems 23 S.M. Fall and Y.C. Pei Are Studies of Dust in Damped Lyman Alpha Systems Biased by Extinction? 35 P. Boisse QSO Absorption by Nearby Galaxies 37 M. Trewhella, M. Disney, and J. Davies The Mass Spectrum of Giant Hydrogen Clouds Associated with Damped Lyman Alpha Absorbers 39 V.K. Khersonsky and D.A. Turnshek A Damped Lyman Alpha Survey at z < S. Rao, D.A. Turnshek, and F. Briggs High Redshift Lyman Limit and Damped Lyman Alpha Absorbers 47 L.J. Storrie-Lombardi, R.G. McMahon, M.J. Irwin, and C. Hazard Moderate Resolution Studies of Damped Lyman Alpha Systems at High Redshift 51 J. Saucedo and J. Bechtold

3 VIII Near-Infrared Ha Searches for Companion Galaxies to Damped Lyman Alpha Systems at z > 2 53 A.J. Bunker, S.J. Warren, P.C. Hewett, and D.L. Clements Lyman Alpha Emission from Galaxies at High Redshift s 55 M. Pettini, R.W. Hunstead, D.L. King, and L.J. Smith PART III ABUNDANCES Abundances and Nature of the Absorbers 61 P. Petitjean The Chemical Evolution of Damped Lyman-Alpha Galaxies.. 71 M. Pettini, D.L. King, L.J. Smith, and R.W. Hunstead Chemical Evolution of (Proto ) Galactic Disks and Metal Abundances of Damped Lyman-Alpha Absorbers 81 U. Fritze - v. Alvensleben Abundances and Ionization in Multiple Component Absorbers 85 R.F. Green, D. York, K. Huang, J. Bechtold, D. Welty, M. Carlson, P. Khare, and V. Kulkarni Element Abundances at High Redshifts: The N/O Ratio at Low Metallicity 89 K. Lipman, M. Pettini, and R.W. Hunstead Abundances in the Lyman Alpha Clouds 95 S. Savaglio and J.K. Webb Relative Metal Abundance Patterns in Two Damped Lyman Alpha Systems 101 L. Lu, B.D. Savage, T.M. Tripp, and D.M. Meyer As Metal Poor as It Could Be: the Damped System at z=3.390 Towards QSO G. Vladilo, S. D'Odorico, P. Molaro, and S. Savaglio PART IV ABSORPTION LINES FROM GAS IN OUR GALAXY Lessons Learned from UV Absorption Lines at z = E.B. Jenkins

4 Probing the Outer Galactic Halo with the GHRS 119 B.D. Savage, L. Lu, and K.R. Sembach Detection of Highly Ionized Galactic HVCs Toward Markarian K.R. Sembach, B.D. Savage, L. Lu, and E. Murphy IX PART V METAL-RICH SYSTEMS AT LOW AND INTERMEDIATE REDSHIFTS The Subclasses of Metal Rich Absorbers 127 J. Bergeron Observational Constraints on the Nature of Low Redshift Lyman Alpha Absorbers 137 V.-Le Brun, J. Bergeron, and P. Boisse The Nature and Evolution of Absorption Selected Galaxies C.C. Steidel From Metal Line Absorption Profiles to Halo Kinematics? C.W. Churchill, S.S. Vogt, and C.C. Steidel Keck HIRES Spectroscopy: Low-Redshift Mg II and Lyman Alpha Systems 157 D.S. Womble Mg II Absorption from Low Redshift Galaxies 161 D.V. Bowen, J.C. Blades, and M. Pettini The Sizes of Mg II Absorption Systems 165 M.J. Drinkwater, R.L. Webster, and P.A. Thomas Hunting for Mg II Absorbers with Fabry Perot Imaging 169 G. Thimm Intrinsic Interstellar Absorption in Two Radio Galaxies at z= S. di Serego Alighieri, A. Cimatti, and S. Savaglio Molecular Absorption in the Millimeter Range 175 T. Wiklind and F. Combes CO Emission at z = Toward 3C D.T. Frayer and R.L. Brown

5 X Automated Search for Absorption Systems in Low-Resolution QSO Spectra 181 S. Lopez and L. Wisotzki Quantitative Spectroscopy of HS with the Hubble Space Telescope 183 D. Reimers, S. Kohler, and H.-J. Hagen Reanalysis of the Lyman Limit Systems in QSO HS R. Riediger and P. Petitjean Metal Line Absorptions Toward the QSO HS J.L. Sanz, P.M. Rodriguez-Pascual, A. de la Fuente, M.C. Recondo, J. Clavel, M. Santos-Lleo, W. Wamsteker High Signal-to-Noise Echelle Spectroscopy of HS T.M. Tripp, L. Lu, and B.D. Savage Redshift Evolution of the Carbon Abundance in Galaxies 199 E.A. Stengler-Larrea Recent Results on QSO Absorption Lines 201 E.M. Burbidge Fine-Structure Doublets in QSO Spectra and Variability of the Fine Structure Constant a 203 S.A. Levshakov and S. D'Odorico Limits on Star Formation Rates in Four Quasar Metal Line Absorbers 205 N. Bergvall, G. Ostlin, K.-G. Karlsson, E. Orndahl, and J. Ronnback A Group of Galaxies at z = P. Francis, B. Woodgate, S.J. Warren, P. M0ller, J. Lowenthal, and T. Williams A Narrow Line Emission Galaxy at z = 2.8 in the Field of Q A. Aragon-Salamanca PART VI BAL QSOS AND QUASAR ENVIRONMENT Broad Absorption Line Quasars: An Overview 213 R.J. Weymann

6 XI The Covering Factors, Ionization Structure, and Chemical Composition of QSO Broad Absorption Line Region Gas 223 D.A. Turnshek The Absorption Spectrum of Nuclear Gas in Q E.J. Wampler The BAL QSO Theory 241 E.Y. Vilkoviskij and I.V. Nosov Evaporation Dominated Flows in BAL Regions of QSOs 243 Y.A. Shchekinov Testing Unified X-ray - UV Absorber Models with NGC S. Mathur, M. Elvis, and B. Wilkes An Associated Absorption System in Front of a Peculiar QSO with z abs ~ z em ~ L.E. Campusano and R.G. Clowes X-Ray Environment of 3CR Radio Sources 249 M.A. Prieto PART VII LYMAN-ALPHA SYSTEMS AT LOW AND HIGH REDSHIFTS Observations of Lyman Alpha and Lyman Limit Systems from the HST Quasar Absorption Line Key Project 253 A. Boksenberg The Gaseous Extent of Galaxies and the Origin of Lyman-Alpha Absorption Systems 263 K.M. Lanzetta, J.K. Webb, and X. Barcons Are Low Redshift Lyman Alpha Absorption Systems Associated with Galaxies? 273 M. Rauch, R.J. Weymann, and S.L. Morris Gravitational Lenses and Quasar Absorption Lines 275 A. Smette Galaxies Close to the Line of Sight to Two z = 1 Quasars: Implications for Galactic Halos and Gravitational Lensing J.W. Fried

7 XII Ionization and Abundances of Intergalactic Gas 289 D. Tytler, X.-M. Fan, S. Buries, L. Cottrell, C. Davis, D. Kirkman, and L. Zuo The Proximity Effect 299 J. Bechtold The Proximity Effect on the Lyman Alpha Forest Due to a Foreground QSO 311 A. Fernandez-Soto, X. Barcons, R. Carballo, and J.K. Webb Lyman-Alpha Forest: Results and Prospects 313 R.F. Carswell Simulation Analysis of the Lyman-Alpha Forest 321 A. Dobrzycki and J. Bechtold Evidence for Large, Quiescent Lyman Alpha Clouds from HST UV Spectroscopy of the Quasar Pair Q A,B 323 N. Dinshaw, C.B. Foltz, CD. Impey, R.J. Weymann, and S.L. Morris The Absorption Spectra of Q and Q R. Carballo, X. Barcons, and J.K. Webb Common Lyman Alpha Absorption Toward the Quasar Pair Q A,B 329 N. Dinshaw, CD. Impey, C.B. Foltz, R.J. Weymann, and F.H. Chaffee The Lyman-Alpha Forest Towards HS at High Resolution 331 P.M. Rodriguez-Pascual, A. de la Fuente, J.L. Sanz, M.C. Recondo, J. Clavel, M. Santos-Lleo, W. Wamsteker High Resolution Spectroscopy of the Bright Quasar HS A. de la Fuente, P.M. Rodriguez-Pascual, J.L. Sanz, M.C. Recondo, J. Clavel, M. Santos-Lleo, and W. Wamsteker PART VIII LARGE-SCALE STRUCTURE The Spatial Correlation of Lyman-Alpha Clouds 337 S. Bajtlik

8 Small-Scale Clustering in a Column-Density-Limited Sample of the Lyman-Alpha Forest 343 V.V. Chernomordik Discovery of a Lyman Alpha Cloud in a Cosmic Void 347 J. Stocke, J.M. Shull, S.V. Penton, M. Donahue, and C. Carilli The Observed Properties of Lyman Alpha Clouds as Signatures of Dark Matter Potential Wells 351 V.K. Khersonsky and D.A. Turnshek Redshift Dependence of the Number Density of Lyman Alpha Lines and Evolution of the Dark Matter Filamentary Structures 353 J.P. Miicket, P. Petitjean, and R. Kates Hydrodynamical Simulations of Lyman Alpha Clouds 355 S. Murray and P. Petitjean Clustering of the Lyman Alpha Clouds in the Line of Sight to the z = 3.66 QSO S. Cristiani, S. D'Odorico, A. Fontana, E. Giallongo, and S. Savaglio The Clustering of QSO Absorption Line Systems 361 P. Francis and S. Veeraraghavan Clustering in the Lyman Alpha Forest at z > M.J. Irwin, L.J. Storrie-Lombardi, and R.G. McMahon Large Scale Structure at High Redshift 365 C.D. Impey and N. Dinshaw Investigating the Connection Between Lyman Alpha Absorbers and Large-Scale Galaxy Structures 369 V. Sarajedini, R.F. Green, and B.T. Jannuzi QSO Spectra and the Evolution of Structure 371 A.G. Doroshkevich and V.I. Turchaninov QSO Absorption Lines as a Cosmic Reference Frame 373 M. Rauch XIII

9 XIV PART IX THE UV BACKGROUND The Ultraviolet Extragalactic Background 377 P. Madau Effects of the Photoionizing Background on Galaxy Formation 381 M. Chiba and B.B. Nath The Helium Gunn-Peterson Test 383 P. Jakobsen New Results on the Gunn-Peterson Effect at High Redshift E. Giallongo, S. D'Odorico, A. Fontana, S. Savaglio, S. Cristiani, and P. Molaro The Hell Proximity Effect 397 A. Meiksin On the Hell Absorption Towards Q M.A. Fardal, M.L. Giroux, and J.M. Shull Active Galactic Nuclei as Cosmological Probes 401 E. Szuszkiewicz PART X FORMATION OF ABSORBING SYSTEMS Models of Lyman Alpha Forest Clouds 405 J.C Charlton Sizes and Dynamics of the Lyman Forest Clouds 419 M.J. Rees Hydrodynamic Simulations of the Lyman Alpha Forest in a Theory of Gravitational Collapse 427 J. Miralda-Escude, R. Cen, J.P. Ostriker, and M. Rauch Uncertainties in the Interpretation of the Lyman Alpha Forest Lines 433 S.A. Levshakov and W.H. Kegel Environmental Effects on a Lyman Alpha Cloud Confined by a Dark Halo 435 I. Murakami and S. Ikeuchi

10 Photoionization Edges of Galaxies and the HI Column Density Distribution 437 M.A. Fardal and P.R. Maloney Hot Galactic Halos and Lyman Limit Systems of Quasars A.C.S. Friaca and S.M. Viegas Lyman Alpha Clouds from Dwarf Outflows 441 B. Wang Consequences of HII Region Model for Absorption Systems in QSOs 443 R. Srianand and P. Khare QSO Absorption Line Systems as Pressure Confined Clouds in Galactic Haloes 445 H.J. Mo Jeans Type Instability of the Reheated IGM 447 H.G. Bi, G. Borner, L.Z. Fang, and Q.B. Li ^baryon and the Geometry of Intermediate Redshift Lyman Alpha Absorption Systems 449 M. Rauch and M.G. Haehnelt XV PART XI WORKSHOP SUMMARY AND CONCLUSION Summary: An Absorbing Workshop 453 V. Trimble Author Index 469