A dataset provided by the European Space Agency

Name 3221
Title EVOLUTION OF LYMAN-ALPHA AND CIV ABSORPTON SYSTEMS: CYCLE 1 OBSERVATIONS
URL https://hst.esac.esa.int/ehst/#/pages/search;proposal=3221;TAPCLIENT=DOI
DOI https://doi.org/10.5270/esa-9hshkjq
Author Bahcall, John
Description This is a scientific proposal for HST mission. For specific information please visit https://archive.stsci.edu/proposal_search.php?id=3221&mission=hst
Publication
  • A Comparison of Two Methods for Estimating Black Hole Spin in Active Galactic Nuclei
  • A Complete Atlas of Recalibrated Hubble Space Telescope Faint Object Spectrograph Spectra of Active Galactic Nuclei and Quasars. I. Pre-COSTAR Spectra
  • Anticipating High-Resolution STIS Spectra of Four Multiphase Mg II Absorbers: A Test of Photoionization Models
  • A Quadruple-Phase Strong Mg II Absorber at z ~ 0.9902 toward PG 1634+706
  • A Uniform Analysis of the Lya Forest at z = 0-5. III. Hubble Space Telescope Faint Object Spectrograph Spectral Atlas
  • A Uniform Analysis of the Lya Forest at z = 0-5. IV. The Clustering and Evolution of Clouds at z <= 1.7
  • Cosmology from quasar spectra
  • Emission Line and Ultraviolet to X-Ray Continuum Correlations: Constraints on the Anisotropy of the Ionizing Continuum in Active Galactic Nuclei
  • Energy Distribution of Individual Quasars from Far-Ultraviolet to X-Rays. I. Intrinsic Ultraviolet Hardness and Dust Opacities
  • High-Resolution STIS/Hubble Space Telescope and HIRES/Keck Spectra of Three Weak Mg II Absorbers toward PG 1634+706
  • Low- and High-Ionization Absorption Properties of Mg II Absorption-selected Galaxies at Intermediate Redshifts. I. General Properties
  • Mean-flux-regulated Principal Component Analysis Continuum Fitting of Sloan Digital Sky Survey Lya Forest Spectra
  • Mg II Absorber Number Density at z~=0.05: Implications for ODLA Evolution
  • Observations of O I and Ca II Emission Lines in Quasars: Implications for the Site of Fe II Line Emission
  • Photoionization of Disk Winds
  • Predicting QSO Continua in the Lya Forest
  • Quasar Spectrum Classification with Principal Component Analysis (PCA): Emission Lines in the Lya Forest
  • The Absorption Signatures of Dwarf Galaxies: The z=1.04 Multicloud Weak Mg II Absorber toward PG 1634+706
  • The Cosmological Density and Ionization of Hot Gas: O VI Absorption in Quasar Spectra
  • The Hubble Space Telescope Quasar Absorption Line Key Project. VII. Absorption Systems at Z abs <= 1.3
  • The Intervening and Associated O VI Absorption-Line Systems in the Ultraviolet Spectrum of H1821+643
  • The Population of Weak Mg II Absorbers. I. A Survey of 26 QSO HIRES/Keck Spectra
  • The Population of Weak Mg II Absorbers. II. The Properties of Single-Cloud Systems
  • The Redshifted Excess in Quasar C IV Broad Emission Lines
  • The Ultraviolet Emission Properties of 13 Quasars
Instrument FOS/BL, FOS/RD
Temporal Coverage 1991-07-22T17:19:43Z/1991-11-03T05:46:15Z
Version 1.0
Mission Description Launched in 1990, the NASA/ESA Hubble Space Telescope remains the premier UV and visible light telescope in orbit. With well over 1.6 million observations from 10 different scientific instruments, the ESA Hubble Science Archive is a treasure trove of astronomical data to be exploited.
Creator Contact https://support.cosmos.esa.int/esdc/index.php?/Tickets/Submit
Date Published 1992-11-02T18:53:55Z
Keywords Hubble, HST, HLA, HCV, ACS, COS, STIS, WFC3, FOC, FOS, HRS, NICMOS, WFPC, WFPC2
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Bahcall comma John, 1992, 'EVOLUTION OF LYMAN-ALPHA AND CIV ABSORPTON SYSTEMS: CYCLE 1 OBSERVATIONS', 1.0, European Space Agency, https://doi.org/10.5270/esa-9hshkjq