A dataset provided by the European Space Agency

Name 9350
Title Intergalactic HeII absorption in CSO 118 = HS 1157+3143
URL https://hst.esac.esa.int/ehst/#/pages/search;proposal=9350;TAPCLIENT=DOI
DOI https://doi.org/10.5270/esa-7h8v31n
Author Reimers, Dieter
Description This is a scientific proposal for HST mission. For specific information please visit https://archive.stsci.edu/proposal_search.php?id=9350&mission=hst
Publication
  • Dating individual quasars with the He II proximity effect
  • Early and Extended Helium Reionization over More Than 600 Million Years of Cosmic Time
  • Intergalactic HeII absorption towards QSO 1157+3143
  • Spectral shape of the UV ionizing background and He II absorption at redshifts 1.8 < z < 2.9
  • Statistical Detection of the He II Transverse Proximity Effect: Evidence for Sustained Quasar Activity for >25 Million Years
  • The End of Helium Reionization at z ~= 2.7 Inferred from Cosmic Variance in HST/COS He II Lya Absorption Spectra
  • The Evolution of the He II-ionizing Background at Redshifts 2.3 < z < 3.8 Inferred from a Statistical Sample of 24 HST/COS He II Lya Absorption Spectra
Instrument STIS, STIS/CCD, STIS/FUV-MAMA
Temporal Coverage 2003-07-14T21:32:15Z/2003-07-20T22:19:15Z
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 2006-12-22T21:47:05Z
Last Update 2025-01-25
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, Reimers et al., 2006, 'Intergalactic HeII absorption in CSO 118 = HS 1157+3143', 1.0, European Space Agency, https://doi.org/10.5270/esa-7h8v31n