Open Access Policy Deposits
Parent: UC Observatories
eScholarship stats: Breakdown by Item for July through October, 2026
| Item | Title | Total requests | Download | View-only | %Dnld |
|---|---|---|---|---|---|
| 9j80t4m1 | The 16th Data Release of the Sloan Digital Sky Surveys: First Release from the APOGEE-2 Southern Survey and Full Release of eBOSS Spectra | 610 | 0 | 610 | 0.0% |
| 2qw2m22g | The Seventeenth Data Release of the Sloan Digital Sky Surveys: Complete Release of MaNGA, MaStar, and APOGEE-2 Data | 563 | 504 | 59 | 89.5% |
| 4058w3z1 | Final Targeting Strategy for the Sloan Digital Sky Survey IV Apache Point Observatory Galactic Evolution Experiment 2 North Survey | 408 | 350 | 58 | 85.8% |
| 4d77d3hk | The HETDEX Instrumentation: Hobby–Eberly Telescope Wide-field Upgrade and VIRUS | 365 | 273 | 92 | 74.8% |
| 9fp0m8s1 | The Fifteenth Data Release of the Sloan Digital Sky Surveys: First Release of MaNGA-derived Quantities, Data Visualization Tools, and Stellar Library | 360 | 267 | 93 | 74.2% |
| 77f6c5hq | SDSS-IV MaNGA: How the Stellar Populations of Passive Central Galaxies Depend on Stellar and Halo Mass | 328 | 246 | 82 | 75.0% |
| 38s3v07s | The Hobby–Eberly Telescope Dark Energy Experiment (HETDEX) Survey Design, Reductions, and Detections* * Based on observations obtained with the Hobby–Eberly Telescope, which is a joint project of the University of Texas at Austin, the Pennsylvania State University, Ludwig-Maximilians-Universität München, and Georg-August-Universität Göttingen. | 302 | 258 | 44 | 85.4% |
| 5qs0n1bc | Innovations and advances in instrumentation at the W. M. Keck Observatory, vol. III | 290 | 233 | 57 | 80.3% |
| 7h46n1q2 | Lick Observatory Supernova Search follow-up program: photometry data release of 93 Type Ia supernovae | 283 | 232 | 51 | 82.0% |
| 11f44236 | THE DEEP2 GALAXY REDSHIFT SURVEY: DESIGN, OBSERVATIONS, DATA REDUCTION, AND REDSHIFTS**Based on observations taken at the W. M. Keck Observatory, which is operated jointly by the University of California and the California Institute of Technology, and on observations made with the NASA/ESO Hubble Space Telescope, obtained from the data archives at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555, and from the Canadian Astronomy Data Centre. | 214 | 99 | 115 | 46.3% |
| 0v44n629 | Sloan Digital Sky Survey IV: Mapping the Milky Way, Nearby Galaxies, and the Distant Universe | 207 | 68 | 139 | 32.9% |
| 7zs2q9fv | Inferring the intergalactic medium neutral fraction at z ∼ 6–8 with low-luminosity Lyman break galaxies | 195 | 153 | 42 | 78.5% |
| 1pm0r30z | The Keck/DEIMOS Stellar Archive. I. Uniform Velocities and Metallicities for 78 Milky Way Dwarf Galaxies and Globular Clusters | 156 | 28 | 128 | 17.9% |
| 90d3n6hc | Structural and Star-forming Relations since z similar to 3: Connecting Compact Star-forming and Quiescent Galaxies | 137 | 60 | 77 | 43.8% |
| 9j94n9g9 | Analysis of Neptune’s 2017 bright equatorial storm | 133 | 39 | 94 | 29.3% |
| 1j62j00j | PypeIt: The Python Spectroscopic Data Reduction Pipeline | 130 | 38 | 92 | 29.2% |
| 2mv66329 | Space Telescope and Optical Reverberation Mapping Project. XII. Broad-line Region Modeling of NGC 5548 | 129 | 32 | 97 | 24.8% |
| 5mc2h72z | Space Telescope and Optical Reverberation Mapping Project. IX. Velocity–Delay Maps for Broad Emission Lines in NGC 5548 | 127 | 39 | 88 | 30.7% |
| 6d71m0bj | The Sloan Digital Sky Survey quasar catalog: tenth data release | 125 | 54 | 71 | 43.2% |
| 1524x8cw | Signatures of a Tidally Induced Spiral Arm at the Anticenter of the Milky Way and a Kinematically Extended Anticenter Stream Using DESI Data Release 2 | 113 | 28 | 85 | 24.8% |
| 44b7j2bq | The Lick AGN Monitoring Project 2016: Velocity-resolved Hβ Lags in Luminous Seyfert Galaxies | 111 | 21 | 90 | 18.9% |
| 5616n854 | The Draco Dwarf Spheroidal Galaxy in the First Year of Dark Energy Spectroscopic Instrument Data | 110 | 28 | 82 | 25.5% |
| 1qh5b3v0 | Commissioning ShARCS: the Shane Adaptive optics infraRed Camera-Spectrograph for the Lick Observatory 3-m telescope | 104 | 39 | 65 | 37.5% |
| 21g9j2dv | Keck adaptive secondary mirror overview | 104 | 53 | 51 | 51.0% |
| 2jg8m6t2 | STELLAR MASS–GAS-PHASE METALLICITY RELATION AT 0.5 ≤ z ≤ 0.7: A POWER LAW WITH INCREASING SCATTER TOWARD THE LOW-MASS REGIME | 93 | 37 | 56 | 39.8% |
| 9n74h9fq | Performance of Kitt Peak’s Mayall 4-meter telescope during DESI commissioning | 89 | 17 | 72 | 19.1% |
| 20s178w7 | Three’s Company: An Additional Non-transiting Super-Earth in the Bright HD 3167 System, and Masses for All Three Planets | 88 | 45 | 43 | 51.1% |
| 8646z73c | Improved Cosmological Constraints from New, Old, and Combined Supernova Data Sets | 87 | 37 | 50 | 42.5% |
| 8v69h64n | The detection of intergalactic H α emission from the Slug Nebula at z ∼ 2.3 | 87 | 40 | 47 | 46.0% |
| 92r7x51m | The Type Ia Supernova 1999aw: A Probable 1999aa-like Event in a Low-Luminosity Host Galaxy | 85 | 38 | 47 | 44.7% |
| 0734s9bj | SATELLITE QUENCHING AND GALACTIC CONFORMITY AT 0.3 < z < 2.5* * This paper includes data gathered with the 6.5 meter Magellan Telescopes located at Las Campanas Observatory, Chile. | 84 | 27 | 57 | 32.1% |
| 1f8401t6 | IMPROVED STANDARDIZATION OF TYPE II-P SUPERNOVAE: APPLICATION TO AN EXPANDED SAMPLE | 83 | 37 | 46 | 44.6% |
| 2531p63m | Searching for exoplanets using a microresonator astrocomb | 82 | 34 | 48 | 41.5% |
| 1844r5rs | SUB-KILOPARSEC ALMA IMAGING OF COMPACT STAR-FORMING GALAXIES AT z ∼ 2.5: REVEALING THE FORMATION OF DENSE GALACTIC CORES IN THE PROGENITORS OF COMPACT QUIESCENT GALAXIES | 81 | 28 | 53 | 34.6% |
| 5st188ws | The Lick AGN Monitoring Project 2016: Dynamical Modeling of Velocity-resolved Hβ Lags in Luminous Seyfert Galaxies | 79 | 16 | 63 | 20.3% |
| 0d12843b | Space Telescope and Optical Reverberation Mapping Project. V. Optical Spectroscopic Campaign and Emission-line Analysis for NGC 5548 | 78 | 35 | 43 | 44.9% |
| 1725d2v2 | The size and pervasiveness of Ly α–UV spatial offsets in star-forming galaxies at z ∼ 6 | 78 | 41 | 37 | 52.6% |
| 74d8z25d | MSA-3D: Dissecting Galaxies at z ∼ 1 with High Spatial and Spectral Resolution | 78 | 30 | 48 | 38.5% |
| 0w29b2rv | EVOLUTION OF INTRINSIC SCATTER IN THE SFR–STELLAR MASS CORRELATION AT 0.5 < z < 3 | 75 | 29 | 46 | 38.7% |
| 5n19f64n | Stability of the Broad-line Region Geometry and Dynamics in Arp 151 Over Seven Years | 74 | 31 | 43 | 41.9% |
| 53h6n2s0 | REVERBERATION MAPPING OF THE KEPLER FIELD AGN KA1858+4850 | 73 | 25 | 48 | 34.2% |
| 2pj2g2h0 | THE LICK AGN MONITORING PROJECT 2011: SPECTROSCOPIC CAMPAIGN AND EMISSION-LINE LIGHT CURVES | 71 | 44 | 27 | 62.0% |
| 54d8z4h9 | CANDELS Multi-wavelength Catalogs: Source Identification and Photometry in the CANDELS Extended Groth Strip | 70 | 49 | 21 | 70.0% |
| 9g73718t | Space Telescope and Optical Reverberation Mapping Project. VII. Understanding the Ultraviolet Anomaly in NGC 5548 with X-Ray Spectroscopy | 68 | 35 | 33 | 51.5% |
| 1h21b72k | Space Telescope and Optical Reverberation Mapping Project. VIII. Time Variability of Emission and Absorption in NGC 5548 Based on Modeling the Ultraviolet Spectrum | 67 | 29 | 38 | 43.3% |
| 7kn6z3zw | HALO7D II: The Halo Velocity Ellipsoid and Velocity Anisotropy with Distant Main-sequence Stars | 65 | 26 | 39 | 40.0% |
| 899861jd | BROAD-LINE REVERBERATION IN THE KEPLER-FIELD SEYFERT GALAXY Zw 229-015 | 63 | 42 | 21 | 66.7% |
| 16x0j072 | Deep ugrizY imaging and DEEP2/3 spectroscopy: a photometric redshift testbed for LSST and public release of data from the DEEP3 Galaxy Redshift Survey | 61 | 25 | 36 | 41.0% |
| 7m06d2jp | GTC Follow-up Observations of Very Metal-poor Star Candidates from DESI | 60 | 25 | 35 | 41.7% |
| 00r9191z | A candidate super-Earth planet orbiting near the snow line of Barnard’s star | 56 | 0 | 56 | 0.0% |
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