| Refcode | Title | |
| 2000ApJ...528..139D | Constraints on Type IA Supernova Models from X-Ray Spectra of Galaxy Clusters | |
| 2000ApJ...528..171Y | Sensitive Radio Observations of High-Redshift Dusty QSOs | |
| 2000ApJ...528..243K | Variability Pattern and the Spectral Evolution of the BL Lacertae Object PKS 2155-304 | |
| 2000ApJ...528..292C | Simultaneous EUVE/ASCA/RXTE Observations of NGC 5548 | |
| 2000ApJ...529...77I | An Observational Test of Dark Matter as Cold Fractal Clouds | |
| 2000ApJ...529...93K | A Subarcsecond Resolution Near-Infrared Study of Seyfert and ``Normal'' Galaxies. II. Morphology | |
| 2000ApJ...529..189G | Superdisks in Radio Galaxies | |
| 2000ApJ...529..224P | Fluorescent Molecular Hydrogen in the Extragalactic Giant H II Region NGC 5461 | |
| 2000ApJ...529..675B | Radio and Millimeter Spectral Properties of Newly Identified High-Energy Gamma-Ray Sources | |
| 2000ApJ...529..698S | The Hubble Space Telescope Key Project on the Extragalactic Distance Scale. XXIV. The Calibration of Tully-Fisher Relations and the Value of the Hubble Constant | |
| 2000ApJ...529..745F | The Hubble Space Telescope Key Project on the Extragalactic Distance Scale. XXVI. The Calibration of Population II Secondary Distance Indicators and the Value of the Hubble Constant | |
| 2000ApJ...529..768K | The Hubble Space Telescope Key Project on the Extragalactic Distance Scale. XXVII. A Derivation of the Hubble Constant Using the Fundamental Plane and Dn-σ Relations in Leo I, Virgo, and Fornax | |
| 2000ApJ...529..816M | Parsec-Scale Images of Flat-Spectrum Radio Sources in Seyfert Galaxies | |
| 2000ApJ...529..853R | Near-Infrared Line Imaging of the Circumnuclear Starburst Ring in NGC 7771 | |
| 2000ApJ...529..859K | Compact Radio Sources with the Steepest Spectra | |
| 2000ApJ...530..166H | The Distribution of High- and Low-Redshift Type IA Supernovae | |
| 2000ApJ...530..213H | X-Ray Emission from Rotating Elliptical Galaxies | |
| 2000ApJ...530..618C | The Scatter in the Relationship between Redshift and the Radio-to-Submillimeter Spectral Index | |
| 2000ApJ...530..660B | Tidally Triggered Star Formation in Close Pairs of Galaxies | |
| 2000ApJ...530..688A | The Nature of LINERS | |
| 2000ApJ...530..704K | Compact Radio Emission from Warm Infrared Galaxies | |
| 2000ApJ...530L..17L | The Dwarf Irregular Galaxy UGC 7636 Exposed: Stripping at Work in the Virgo Cluster | |
| 2000ApJ...531...81C | X-Ray Observations of Gravitationally Lensed Quasars: Evidence for a Hidden Quasar Population | |
| 2000ApJ...531..118B | FIRST Bent-Double Radio Sources: Tracers of High-Redshift Clusters | |
| 2000ApJ...531..642M | Hard X-Ray Detection of the High-Redshift Quasar 4C 71.07 | |
| 2000ApJ...532..136C | Long-Term Spectroscopic Monitoring of Low-Redshift Quasars. I. 5 Year Report | |
| 2000ApJ...532..206F | Deconstructing Abell 3266: A Major Merger in a Quiet Cluster | |
| 2000ApJ...532..238P | On the Ionizing Continuum in Active Galactic Nuclei: Clues from the Infrared Space Observatory | |
| 2000ApJ...532..700A | Optical Identification of the ASCA Large Sky Survey | |
| 2000ApJ...532..740S | The Hubble Space Telescope Survey of BL Lacertae Objects. I. Surface Brightness Profiles, Magnitudes, and Radii of Host Galaxies | |
| 2000ApJ...532..816U | The Hubble Space Telescope Survey of BL Lacertae Objects. II. Host Galaxies | |
| 2000ApJ...532..830L | Mid-Ultraviolet Determination of Elliptical Galaxy Abundances and Ages | |
| 2000ApJ...532..867F | The Extended Narrow-Line Region of the Seyfert 1 Galaxy ESO 362-G18 versus That of the Seyfert 2 Galaxy ESO 362-G8 | |
| 2000ApJ...532..883G | Hubble Space Telescope Observations and Photoionization Modeling of the LINER Galaxy NGC 1052 | |
| 2000ApJ...532L..95C | The Extreme Compact Starburst in Markarian 273 | |
| 2000ApJ...533...38R | Sunyaev-Zeldovich Effect-derived Distances to the High-Redshift Clusters MS 0451.6-0305 and CL 0016+16 | |
| 2000ApJ...533...95T | Magnetic Fields in Quasar Cores. II. | |
| 2000ApJ...533..149S | Gasdynamics in the LINER Galaxy NGC 5005: Episodic Fueling of a Nuclear Disk | |
| 2000ApJ...533..162K | Correlations among Global Photometric Properties of Disk Galaxies | |
| 2000ApJ...533..631K | Reverberation Measurements for 17 Quasars and the Size-Mass-Luminosity Relations in Active Galactic Nuclei | |
| 2000ApJ...533..650S | Testing the Blazar Paradigm: ASCA Observations of Flat-Spectrum Radio Quasars with Steep Soft X-Ray Spectra | |
| 2000ApJ...533..682C | The Dust Content and Opacity of Actively Star-forming Galaxies | |
| 2000ApJ...533..729T | ASCA Observations of ``Type 2'' LINERs: Evidence for a Stellar Source of Ionization | |
| 2000ApJ...533..826S | Distribution and Kinematics of the Circumnuclear Molecular Gas in the Seyfert 1 Galaxy NGC 3227 | |
| 2000ApJ...533..850S | Bars and Warps Traced by the Molecular Gas in the Seyfert 2 Galaxy NGC 1068 | |
| 2000ApJ...533..869C | Evidence for the Hierarchical Formation of the Galactic Spheroid | |
| 2000ApJ...533L..13C | Dust Emission from High-Redshift QSOS | |
| 2000ApJ...533L.111W | Accretion Rates onto Massive Black Holes in Four Quiescent Elliptical Galaxies | |
| 2000ApJ...534...90P | The COINS Sample: VLBA Identifications of Compact Symmetric Objects | |
| 2000ApJ...534..104P | Redshifts and Neutral Hydrogen Observations of Compact Symmetric Objects in the COINS Sample | |
| 2000ApJ...535..561E | APM 08279+5255: Keck Near- and Mid-Infrared High-Resolution Imaging | |
| 2000ApJ...535..663R | Interferometric 12CO Observations of the Central Disk of NGC 4631: An Energetic Molecular Outflow | |
| 2000ApJ...536...73N | X-Ray Total Mass Estimate for the Nearby Relaxed Cluster A3571 | |
| 2000ApJ...536..239L | Evidence for Asphericity in the Type IIN Supernova SN 1998S | |
| 2000ApJ...536..561G | Measuring the Diffuse Optical Light in Abell 1651 | |
| 2000ApJ...536..645C | Diffuse Ionized Gas in a Sample of Edge-on Galaxies and Comparisons with H I and Radio Continuum Emission | |
| 2000ApJ...537...91P | Space VLBI Observations of 3C 279 at 1.6 and 5 GHz | |
| 2000ApJ...537..123D | Metallicity Gradients in the Intracluster Gas of Abell 496 | |
| 2000ApJ...537..152K | Jet Directions in Seyfert Galaxies | |
| 2000ApJ...537..638G | Optical Variability of BL Lacertae during the Major Outburst of 1997 | |
| 2000ApJ...537L..95D | Evidence for Tidal Interaction and a Supergiant H I Shell in the Local Group Dwarf Galaxy NGC 6822 | |
| 2000ApJ...538..121X | ROSAT/ASCA Observations of a Serendipitous BL Lacertae Object PKS 2316-423: The Variable High-Energy Tail of Synchrotron Radiation | |
| 2000ApJ...538..581R | The Narrow-Line Region of Narrow-Line Seyfert 1 Galaxies | |
| 2000ApJ...538..608S | A New Probe of the Molecular Gas in Galaxies: Application to M101 | |
| 2000ApJ...539...73G | Cosmological Halos: a Search for the Ionized Intergalactic Medium | |
| 2000ApJ...539..136Z | The Properties of Poor Groups of Galaxies. III. The Galaxy Luminosity Function | |
| 2000ApJ...539..172B | Iron Gradients in Cooling Flow Galaxies and Groups | |
| 2000ApJ...539..592B | The Effect of Environment on the X-Ray Emission from Early-Type Galaxies | |
| 2000ApJ...539L...9F | A Fundamental Relation between Supermassive Black Holes and Their Host Galaxies | |
| 2000ApJ...540..593V | Wide-Field J- and K-Band Galaxy Counts in the European Large-AreaInfrared Space Observatory Survey Fields | |
| 2000ApJ...540..715R | Cluster Populations in A115 and A2283 | |
| 2000ApJ...540..771W | Noncircular Gas Kinematics and Star Formation in the Ringed Galaxy NGC 4736 | |
| 2000ApJ...540L..83B | UV Excess Galaxies: Wolf-Rayet Galaxies | |
| 2000ApJ...541...66L | Intrinsic Differences in the Inner Jets of High and Low Optically Polarized Radio Quasars | |
| 2000ApJ...541..112T | Kinematic Age Estimates for Four Compact Symmetric Objects from the Pearson-Readhead Survey | |
| 2000ApJ...541..134X | Local Luminosity Function at 15 Microns and Galaxy Evolution Seen by ISOCAM 15 Micron Surveys | |
| 2000ApJ...541..624S | Interstellar Gas in the NGC 4410 Galaxy Group | |
| 2000ApJ...541..644X | Mapping Infrared Enhancements in Closely Interacting Spiral-Spiral Pairs. I. ISO CAM and ISO SWS Observations | |
| 2000ApJ...542..128K | Hubble Space Telescope Photometry of the Dwarf Spheroidal Galaxy ESO 410-G005 | |
| 2000ApJ...542..175A | X-Ray Emission from Seyfert 2 Galaxies with Optical Polarized Broad Lines | |
| 2000ApJ...542..186N | Radio Sources in Low-Luminosity Active Galactic Nuclei. I. VLA Detections of Compact, Flat-Spectrum Cores | |
| 2000ApJ...542..588I | On the Relation between Peak Luminosity and Parent Population of Type IA Supernovae: A New Tool for Probing the Ages of Distant Galaxies | |
| 2000ApJ...542..655C | The Chandra X-Ray Observatory Resolves the X-Ray Morphology and Spectra of a Jet in PKS 0637-752 | |
| 2000ApJ...542..673F | The Evolution of the Galactic Morphological Types in Clusters | |
| 2000ApJ...542..703Z | Observations of Seyfert Galaxies by OSSE and Parameters of Their X-Ray/Gamma-Ray Sources | |
| 2000ApJ...542L..83G | CO in Stephan's Quintet: First Evidence of Molecular Gas in the Intragroup Starburst | |
| 2000ApJ...542L.105T | Complex Spectral Variability from Intensive Multiwavelength Monitoring of Markarian 421 in 1998 | |
| 2000ApJ...543..124T | Rapid Synchrotron Flares from BL Lacertae Detected by ASCA and RXTE | |
| 2000ApJ...543..178G | Nearby Optical Galaxies: Selection of the Sample and Identification of Groups | |
| 2000ApJ...543..545E | 150 KEV Emission from PKS 2149-306 with BEPPOSAX | |
| 2000ApJ...543..634M | Probing the Interstellar Medium in Early-Type Galaxies withInfrared Space Observatory Observations | |
| 2000ApJ...544..123C | Quasar Variability in the Framework of Poissonian Models | |
| 2000ApJ...544..176N | The 1.0 Megaparsec Galaxy Pair Sample in Low-Density Regions | |
| 2000ApJ...544..218A | Multiwavelength Observations of Dusty Star Formation at Low and High Redshift | |
| 2000ApJ...544..712C | Multicolor Optical Imaging of Infrared-warm Seyfert Galaxies. II. Optical and Infrared Properties and Their Correlations | |
| 2000ApJ...544..780P | An X-Ray, Optical, and Radio Search for Supernova Remnants in the Nearby Sculptor Group Sd Galaxy NGC 300 | |
| 2000ApJ...545..171D | Seeing Galaxies through Thick and Thin. II. Direct Measures of Extinction in Spiral Disks through Spectroscopy of Overlapping Galaxies | |
| 2000ApJ...545..190I | Testing the AGN-Starburst Connection in Seyfert Galaxies | |
| 2000ApJ...545..444B | Preliminary Spectral Analysis of the Type II Supernova 1999EM | |
| 2000ApJ...545..625Y | Evidence of Thick Obscuring Matter Revealed in the X-Ray Spectrum of the z=4.28 Quasar RX J1028.6-0844 | |
| 2000ApJ...545..670D | Hubble Space Telescope Observations of Vibrationally Excited Molecular Hydrogen in Cluster Cooling Flow Nebulae | |
| 2000ApJ...545..758R | The Recent High State of the BL Lacertae Object AO 0235 and Cross-Correlations between Optical and Radio Bands | |
| 2000ApJ...545..781D | The Local Space Density of SB-SDM Galaxies as Function of Their Scale Size, Surface Brightness, and Luminosity | |
| 2000ApJS..126...37K | Radio Morphologies and Spectra of Compact Radio Sources with the Steepest Spectra | |
| 2000ApJS..126...63R | Visible and Near-Infrared Spectroscopy of Seyfert 1 and Narrow-Line Seyfert 1 Galaxies | |
| 2000ApJS..126..133W | The FIRST Bright Quasar Survey. II. 60 Nights and 1200 Spectra Later | |
| 2000ApJS..126..209R | The Bright SHARC Survey: The Cluster Catalog | |
| 2000ApJS..127...27R | A Visual Search for Galaxies in a Milky Way Region around the North Supergalactic Pole | |
| 2000ApJS..128..139F | Hubble Space Telescope WFPC2 Imaging of a Sample of Early-Type Seyfert Galaxies | |
| 2000ApJS..128..431F | A Database of Cepheid Distance Moduli and Tip of the Red Giant Branch, Globular Cluster Luminosity Function, Planetary Nebula Luminosity Function, and Surface Brightness Fluctuation Data Useful for Distance Determinations | |
| 2000ApJS..128..461M | A Database of Tully-Fisher Calibrator Galaxies | |
| 2000ApJS..128..469H | Microjansky Radio Sources in DC 0107-46 (Abell 2877) | |
| 2000ApJS..128..479S | Jet Directions in Seyfert Galaxies: B and I Imaging Data | |
| 2000ApJS..129...33D | The Dust-Radio Connection in 3CR Radio Galaxies | |
| 2000ApJS..129...93F | The Nature of Composite LINER/H II Galaxies as Revealed from High-Resolution VLA Observations | |
| 2000ApJS..129..435B | The Northern ROSAT All-Sky (NORAS) Galaxy Cluster Survey. I. X-Ray Properties of Clusters Detected as Extended X-Ray Sources | |
| 2000ApJS..129..493H | Absorption-Line Probes of Gas and Dust in Galactic Superwinds | |
| 2000ApJS..129..547B | RBSC-NVSS Sample. I. Radio and Optical Identifications of a Complete Sample of 1556 Bright X-Ray Sources | |
| 2000ApJS..130....1R | Discovery of DampedLyα Systems at Redshifts Less than 1.65 and Results on Their Incidence and Cosmological Mass Density | |
| 2000ApJS..130...37S | A Uniform Analysis of theLyα Forest at Z=0-5. I. The Sample and Distribution of Clouds at Z>1.7 | |
| 2000ApJS..130...67S | A Uniform Analysis of the Lyα Forest at z=0-5. II. Measuring the Mean Intensity of the Extragalactic Ionizing Background Using the Proximity Effect | |
| 2000ApJS..130..121P | The Local Lyα Forest. I. Observations with the GHRS/G160M on the Hubble Space Telescope | |
| 2000ApJS..130..177R | The Arecibo Dual-Beam Survey: Arecibo and VLA Observations | |
| 2000ApJS..130..237T | Loose Groups of Galaxies in the Las Campanas Redshift Survey | |
| 2000ApJS..130..267M | Nuclear Gas and Dust Disks in Nearby 3CR Elliptical Galaxies | |
| 2000ApJS..131...47E | Gas-rich Dwarfs from the PSS-II. III. H I Profiles and Dynamical Masses | |
| 2000ApJS..131...71C | Multicolor Optical Imaging of Infrared-warm Seyfert Galaxies. I. Introduction and Sample Selection | |
| 2000ApJS..131...95F | The VSOP 5 GHz Continuum Survey: The Prelaunch VLBA Observations | |
| 2000ApJS..131..335R | XID: Cross-Association of ROSAT/Bright Source Catalog X-Ray Sources with USNO A-2 Optical Point Sources | |
| 2000ApJS..131..413Z | The Structure of Infrared-luminous Galaxies at 100 Microns | |
| 2000ApJS..131..441K | Comparing Galaxy Morphology at Ultraviolet and Optical Wavelengths | |
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