| Refcode | Title | |
| 1999ApJ...510..178T | X-Ray Observations of the Seyfert Galaxy LB 1727 (1H 0419-577) | |
| 1999ApJ...510..631H | What Powers the Compact Radio Emission in Nearby Elliptical and S0 Galaxies? | |
| 1999ApJ...510..637H | The Disks of Galaxies with Seyfert and Starburst Nuclei. II. Near-Infrared Structural Properties | |
| 1999ApJ...510..669S | The Luminous Starburst Ring in NGC 7771: Sequential Star Formation? | |
| 1999ApJ...510..806A | Measuring Molecular, Neutral Atomic, and Warm Ionized Galactic Gas through X-Ray Absorption | |
| 1999ApJ...511...34D | The Enrichment History of Hot Gas in Poor Galaxy Groups | |
| 1999ApJ...511...65J | Einstein Observatory Images of Clusters of Galaxies | |
| 1999ApJ...511..142T | X-Ray Observations of Markarian 231 | |
| 1999ApJ...511..595H | An X-Ray Survey of Galaxies in Pairs | |
| 1999ApJ...511..671S | Cepheid and Tip of the Red Giant Branch Distances to the Dwarf Irregular Galaxy IC 10 | |
| 1999ApJ...511..686A | Physical Conditions in the Seyfert Galaxy NGC 2992 | |
| 1999ApJ...511..730E | Molecular Gas in 3C 293: The First Detection of CO Emission and Absorption in a Fanaroff-Riley Type II Radio Galaxy | |
| 1999ApJ...512...88U | Hubble Space Telescope Observations of the Host Galaxies of BL Lacertae Objects | |
| 1999ApJ...512..157K | Far-Infrared Polarization of the Quasar 3C 279 | |
| 1999ApJ...512..178X | Starburst in the Intragroup Medium of Stephan's Quintet | |
| 1999ApJ...512..601A | Centimeter-Wavelength Total Flux and Linear Polarization Properties of Radio-loud BL Lacertae Objects | |
| 1999ApJ...512L..27T | H I Absorption toward the Nucleus of the Radio Galaxy PKS 2322-123 in A2597 | |
| 1999ApJ...513...51C | The REX Survey: A Search for Radio-emitting X-Ray Sources | |
| 1999ApJ...513..156M | Properties of Galactic Outflows: Measurements of the Feedback from Star Formation | |
| 1999ApJ...513..161C | Very High Energy Gamma Rays from PKS 2155-304 | |
| 1999ApJ...513..207S | High Spatial Resolution Imaging of ARP 220 from 3 to 25 Microns | |
| 1999ApJ...513..576R | Determining the Fraction of Intrinsic C IV Absorption in Quasi-stellar Object Absorption-Line Systems | |
| 1999ApJ...513..652M | A Gamma-Ray Flare from PKS 2255-282 | |
| 1999ApJ...513..695M | The Stellar Populations of Spiral Disks. II. Measuring and Modeling the Radial Distribution of Absorption Spectral Indices | |
| 1999ApJ...513..707G | Multiwavelength Study of the Starburst Galaxy NGC 7714. I. Ultraviolet-Optical Spectroscopy | |
| 1999ApJ...513L..13C | The Radio-to-Submillimeter Spectral Index as a Redshift Indicator | |
| 1999ApJ...514...33T | A Narrowband Imaging Search for [O III] Emission from Galaxies at z > 3 | |
| 1999ApJ...514...40M | A Statistical Study of Rest-Frame Optical Emission Properties in Luminous Quasars at 2.0<=z<=2.5 | |
| 1999ApJ...514..119K | Evolutionary Status of Dwarf ``Transition'' Galaxies | |
| 1999ApJ...514..133M | The Isolated Elliptical NGC 1132: Evidence for a Merged Group of Galaxies? | |
| 1999ApJ...514..138K | High-Energy Emission from the TEV Blazar Markarian 501 during Multiwavelength Observations in 1996 | |
| 1999ApJ...514..148D | A Flux-limited Sample of Bright Clusters of Galaxies from the Southern Part of the ROSAT All-Sky Survey: The Catalog and LOG N-LOG S | |
| 1999ApJ...514..614K | The Hubble Space Telescope Key Project on the Extragalactic Distance Scale. XIX. The Discovery of Cepheids in and a New Distance to NGC 3198 | |
| 1999ApJ...514..675P | High-Resolution Infrared Spectroscopy and Nuclear Clusters in the Starburst Galaxy NGC 1614 | |
| 1999ApJ...514..772D | ASCA Observations of the Starburst-driven Superwind Galaxy NGC 2146: Broadband (0.6-9 KEV) Spectral Properties | |
| 1999ApJ...514..787C | Dark Matter and the Chemical Evolution of Irregular Galaxies | |
| 1999ApJ...514L..61B | Discovery of a Radio-loud/Radio-quiet Binary Quasar | |
| 1999ApJ...515....1S | The Hubble Space Telescope Key Project on the Extragalactic Distance Scale. XIV. The Cepheids in NGC 1365 | |
| 1999ApJ...515...29M | The Hubble Space Telescope Key Project on the Extragalactic Distance Scale. XV. A Cepheid Distance to the Fornax Cluster and Its Implications | |
| 1999ApJ...515..558S | CTD 93 and the Nature of Gigahertz Peaked Spectrum Radio Sources | |
| 1999ApJ...515..567W | Broadband X-Ray Observations of the Narrow-Line X-Ray Galaxy NGC 5506 | |
| 1999ApJ...515L..53W | The PG X-Ray QSO Sample: Links between the Ultraviolet-X-Ray Continuum and Emission Lines | |
| 1999ApJ...516....9K | Radio-quiet Red Quasars | |
| 1999ApJ...516...62D | Chemical Evidence for Morphological Evolution of Spiral Galaxies | |
| 1999ApJ...516...85T | A Polarimetric Search for Hidden Quasars in Three Radio-selected Ultraluminous Infrared Galaxies | |
| 1999ApJ...516...97N | The Relative Orientation of Nuclear Accretion and Galaxy Stellar Disks in Seyfert Galaxies | |
| 1999ApJ...516..114P | The State of the Molecular Gas in a Luminous Starburst/Seyfert 2 Galaxy: NGC 1068 Revisited | |
| 1999ApJ...516..127U | Radio Continuum Evidence for Outflow and Absorption in the Seyfert 1 Galaxy Markarian 231 | |
| 1999ApJ...516..141P | Possible New X-Ray-selected EGRET Identifications | |
| 1999ApJ...516..582V | Probing the Hard X-Ray Properties of High-Redshift Radio-Quiet Quasars with ASCA | |
| 1999ApJ...516..604H | Mass and Metallicity of Five X-Ray-bright Galaxy Groups | |
| 1999ApJ...516..660H | Morphology of the 12 Micron Seyfert Galaxies. I. Hubble Types, Axial Ratios, Bars, and Rings | |
| 1999ApJ...516..672H | The Spectral Energy Distributions of Low-Luminosity Active Galactic Nuclei | |
| 1999ApJ...516..693H | The Mass-to-Light Ratio of Binary Galaxies | |
| 1999ApJ...516..744B | Diffuse Gamma-Ray Emission from Starburst Galaxies and M31 | |
| 1999ApJ...516..750C | Intrinsic Absorption Lines in Seyfert 1 Galaxies. I. Ultraviolet Spectra from the Hubble Space Telescope | |
| 1999ApJ...517..130H | An X-Ray and Optical Investigation of the Starburst-driven Superwind in the Galaxy Merger ARP 299 | |
| 1999ApJ...517L..81U | Subrelativistic Radio Jets and Parsec-Scale Absorption in Two Seyfert Galaxies | |
| 1999ApJ...517L..85P | Hard X-Ray Variability in M82: Evidence for a Nascent Active Galactic Nucleus? | |
| 1999ApJ...518...94I | On the Influence of the Environment on the Star Formation Rates of a Sample of Galaxies in Nearby Compact Groups | |
| 1999ApJ...518..117K | Parsec-Scale Radio Structures in the Nuclei of Four Seyfert Galaxies | |
| 1999ApJ...518..576P | The Star Formation Histories of Galaxies in Distant Clusters | |
| 1999ApJ...519...55Y | The Luminosity Functions and Size Distributions of H II Regions in Irregular Galaxies | |
| 1999ApJ...519...89C | The Nature of Accreting Black Holes in Nearby Galaxy Nuclei | |
| 1999ApJ...519..185T | The Starburst in the Central Kiloparsec of Markarian 231 | |
| 1999ApJ...520...67K | The Host Galaxies of Three Radio-loud Quasars: 3C 48, 3C 345, and B2 1425+267 | |
| 1999ApJ...520..196D | EGRET Observations of the Diffuse Gamma-Ray Emission in Orion: Analysis through Cycle 6 | |
| 1999ApJ...520..469T | Near-Infrared Observations of the Environments of Radio-quiet QSOs at z >~ 1 | |
| 1999ApJ...520L...5L | Massive Cooling Flow Clusters Inhabit Crowded Environments | |
| 1999ApJ...520L..91W | PKS 1004+13: A High-Inclination, Highly Absorbed Radio-loud QSO--the First Radio-loud Broad Absorption Line QSO at Low Redshift? | |
| 1999ApJ...521...64M | Dust Absorption and the Ultraviolet Luminosity Density at z ~ 3 as Calibrated by Local Starburst Galaxies | |
| 1999ApJ...521..103P | Obscuration of the Parsec-Scale Jets in the Compact Symmetric Object 1946+708 | |
| 1999ApJ...521..121G | Extended Emission Line Gas in Radio Galaxies: PKS 0349-27 | |
| 1999ApJ...521..145M | X-Ray Observations of BL Lacertae during the 1997 Outburst and Association with Quasar-like Characteristics | |
| 1999ApJ...521..155M | The Extragalactic Distance Scale Key Project. XVIII. The Discovery of Cepheids and a New Distance to NGC 4535 Using the Hubble Space Telescope | |
| 1999ApJ...521..246C | On the Nature of the Discrete Gamma-Ray Sources in the Vicinity of the Supernova Remnant G312.4-0.4 | |
| 1999ApJ...521..547C | A Search for Very High Energy Gamma Rays from Active Galactic Nuclei Visible from the Southern Hemisphere | |
| 1999ApJ...521..572C | Intrinsic Absorption Lines in the Seyfert 1 Galaxy NGC 5548: Ultraviolet Echelle Spectra from the Space Telescope Imaging Spectrograph | |
| 1999ApJ...521L..25C | Detection of CO (2-1) and Radio Continuum Emission from the z = 4.4 QSO BRI 1335-0417 | |
| 1999ApJ...522..113V | Optical Spectroscopy of the IRAS 1 JY Sample of Ultraluminous Infrared Galaxies | |
| 1999ApJ...522..139V | New Results from a Near-Infrared Search for Hidden Broad-Line Regions in Ultraluminous Infrared Galaxies | |
| 1999ApJ...522..183M | The Taxonomy of Blue Amorphous Galaxies. II. Structure and Evolution | |
| 1999ApJ...522..199H | Kinematics and Structure of the Starburst Galaxy NGC 7673 | |
| 1999ApJ...523..107T | Age and Dust Degeneracy for Starburst Galaxies Solved? | |
| 1999ApJ...523..121W | An Ultradeep High-Resolution X-Ray Image of M101: The X-Ray Source Population in a Late-Type Spiral | |
| 1999ApJ...523..147F | Hubble Space Telescope/Faint Object Spectrograph Spectroscopy of Spatially Resolved Narrow-Line Regions in the Seyfert 2 Galaxies NGC 2110 and NGC 5929 | |
| 1999ApJ...523..492M | Projection, Spatial Correlations, and Anisotropies in a Large and Complete Sample of Abell Clusters | |
| 1999ApJ...523..521F | The X-Ray Spectra and Spectral Variability of Intermediate-Type Seyfert Galaxies: ASCA Observations of NGC 4388 and ESO 103-G35 | |
| 1999ApJ...523..540S | The HUBBLE SPACE TELESCOPE Extragalactic Distance Scale Key Project. XXIII. The Discovery of Cepheids in NGC 3319 | |
| 1999ApJ...523..559B | An INFRARED SPACE OBSERVATORY Upper Limit to the Low-Mass Star Halo in the Edge-on Galaxy NGC 4565 | |
| 1999ApJ...523..566C | The Centers of Early- to Intermediate-Type Spiral Galaxies: A Structural Analysis | |
| 1999ApJ...523..575L | Very Extended X-Ray and Hα Emission in M82: Implications for the Superwind Phenomenon | |
| 1999ApJ...524...98S | GHRS and ORFEUS II Observations of the Highly Ionized Interstellar Medium toward ESO 141-055 | |
| 1999ApJ...524..536I | A Study of Lyα Quasar Absorbers in the Nearby Universe | |
| 1999ApJ...524..612B | New Galaxies Discovered in the First Blind H I Survey of the Centaurus A Group | |
| 1999ApJ...524..667T | On X-Ray Variability in Seyfert Galaxies | |
| 1999ApJ...524..674D | A Medium Survey of the Hard X-Ray Sky with ASCA. II. The Source's Broadband X-Ray Spectral Properties | |
| 1999ApJ...524..684G | Neutral Hydrogen (21 Centimeter) Absorption in Seyfert Galaxies: Evidence for Free-Free Absorption and Subkiloparsec Gaseous Disks | |
| 1999ApJ...524L...5S | The Molecular Gas in the Circumnuclear Region of Seyfert Galaxies | |
| 1999ApJ...524L..27T | A NICMOS Search for High-Redshift Elliptical Galaxy Candidates | |
| 1999ApJ...525..127L | The RGB Sample of Intermediate BL Lacertae Objects | |
| 1999ApJ...525..153B | The H I and Ionized Gas Disk of the Seyfert Galaxy NGC 1144 = Arp 118: A Violently Interacting Galaxy with Peculiar Kinematics | |
| 1999ApJ...525..176P | VSOP and Ground-based VLBI Imaging of the TEV Blazar Markarian 421 at Multiple Epochs | |
| 1999ApJ...525..673B | Polarized Broad-Line Emission from Low-Luminosity Active Galactic Nuclei | |
| 1999ApJ...525..702D | NICMOS Observations of Interaction-triggered Star Formation in the Luminous Infrared Galaxy NGC 6090 | |
| 1999ApJ...525L...9Y | A Highly Doppler Blueshifted Fe-K Emission Line in the High-Redshift QSO PKS 2149-306 | |
| 1999ApJ...525L..69B | X-Rays from the Highly Polarized Broad Absorption Line QSO CSO 755 | |
| 1999ApJ...526...27D | Optical-Radio Alignment in Compact Steep-Spectrum Radio Sources | |
| 1999ApJ...526...52T | Arakelian 564: An Unusual Component in the X-Ray Spectra of Narrow-Line Seyfert 1 Galaxies | |
| 1999ApJ...526...60S | An X-Ray Spectral Survey of Radio-loud Active Galactic Nuclei with ASCA | |
| 1999ApJ...526..579W | Central Masses and Broad-Line Region Sizes of Active Galactic Nuclei. I. Comparing the Photoionization and Reverberation Techniques | |
| 1999ApJ...526..599S | Detection of the Red Giant Branch Stars in M82 Using the Hubble Space Telescope | |
| 1999ApJ...527..554B | Hubble Space Telescope Observations of the Serendipitous X-Ray Companion to Markarian 273: Cluster at z=0.46? | |
| 1999ApJS..120..147M | A VLA Search for Head-Tail Radio Sources in Abell Clusters | |
| 1999ApJS..120..179P | X-Ray Constraints on Accretion and Starburst Processes in Galactic Nuclei. I. Spectral Results | |
| 1999ApJS..120..209N | Radio Structures of Seyfert Galaxies. VIII. A Distance- and Magnitude-Limited Sample of Early-Type Galaxies | |
| 1999ApJS..120..335M | A General Gamma-Ray Source Catalog | |
| 1999ApJS..121..287H | The CFA Redshift Survey: Data for the South Galactic CAP | |
| 1999ApJS..121..445T | Photometric Properties of Kiso Ultraviolet-Excess Galaxies in the Lynx-Ursa Major Region | |
| 1999ApJS..121..473B | A Three-dimensional Diagnostic Diagram for Seyfert 2 Galaxies: Probing X-Ray Absorption and Compton Thickness | |
| 1999ApJS..122...81M | Hubble Space Telescope Snapshot Survey of 3CR Radio Source Counterparts. III. Radio Galaxies with z<0.1 | |
| 1999ApJS..122..109T | Galaxy Structural Parameters: Star Formation Rate and Evolution with Redshift | |
| 1999ApJS..122..355V | Clustering Properties of Low-Redshift QSO Absorption Systems Toward the Galactic Poles | |
| 1999ApJS..122..415A | Survey for Emission-Line Galaxies: Universidad Complutense de Madrid List 3 | |
| 1999ApJS..123...41M | Radio Emission from Galaxies in the Las Campanas Redshift Survey | |
| 1999ApJS..123...79H | The Third EGRET Catalog of High-Energy Gamma-Ray Sources | |
| 1999ApJS..123..219C | Infrared Planetary Nebulae in the NRAO VLA Sky Survey | |
| 1999ApJS..123..447S | Pictor A (PKS 0518-45): From Nucleus to Lobes | |
| 1999ApJS..124...11L | HUBBLE SPACE TELESCOPE Imaging of the Host Galaxies of High-RedshiftRadio-loud Quasars | |
| 1999ApJS..124...33B | The IC 342/Maffei Group Revealed | |
| 1999ApJS..124...95B | The NICMOS Snapshot Survey of Nearby Galaxies | |
| 1999ApJS..124..127P | Near-infrared Imaging of Early-Type Galaxies. II. Global Photometric Parameters | |
| 1999ApJS..124..285R | VLA Images at 5 GHZ of 212 Southern Extragalactic Objects | |
| 1999ApJS..124..403S | CO Images of the Central Regions of 20 Nearby Spiral Galaxies | |
| 1999ApJS..125....1O | Polarization of Broad Absorption Line QSOS. I. A Spectropolarimetric Atlas | |
| 1999ApJS..125...99B | Precision Velocity Fields in Spiral Galaxies. I. Noncircular Motions and rms Noise in Disks | |
| 1999ApJS..125..297L | A Comprehensive Spectral and Variability Study of Narrow-Line Seyfert 1 Galaxies Observed by ASCA. I. Observations and Time Series Analysis | |
| 1999ApJS..125..317L | A Comprehensive Spectral and Variability Study of Narrow-Line Seyfert 1 Galaxies Observed by ASCA. II. Spectral Analysis and Correlations | |
| 1999ApJS..125..349H | Morphology of the 12 Micron Seyfert Galaxies. II. Optical and Near-Infrared Image Atlas | |
| 1999ApJS..125..363P | A Subarcsecond-Resolution Near-Infrared Study of Seyfert and ``Normal'' Galaxies. I. Imaging Data | |
| 1999ApJS..125..409C | Arcsecond Positions of UGC Galaxies | |
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