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Compass Image of Gravitationally Lensed Quasars

Compass Image of Gravitationally Lensed Quasars

About the Data

  • Data Description
    Data DescriptionProposal: A description of the observations, their scientific justification, and the links to the data available in the science archive.
    Science Team: The astronomers who planned the observations and analyzed the data. "PI" refers to the Principal Investigator.
    The HST observations include those from programs 9744 (C. Kochanek) and 10158 (C. Fassnacht).
  • Instrument
    InstrumentThe science instrument used to produce the data.
    ACS/ WFC
  • Exposure Dates
    Exposure DatesThe date(s) that the telescope made its observations and the total exposure time.
    22 June 2004, 24 Aug 2004, 18 Aug 2003, 23 July 2004
  • Filters
    FiltersThe camera filters that were used in the science observations.
    F555W, F606W, F814W
  • Object Name
    Object NameA name or catalog number that astronomers use to identify an astronomical object.
    RXJ1131-1231, B1608+656, HE0435-1223, WFI2033-4723
  • Object Description
    Object DescriptionThe type of astronomical object.
    Background quasars lensed by foreground galaxies
  • Release Date
    January 8, 2020
  • Science Release
    Cosmic Magnifying Glasses Yield Independent Measure of Universe’s Expansion
    Read the release
  • Credit
    NASA, ESA, S.H. Suyu (Max Planck Institute for Astrophysics, Technical University of Munich, and Academia Sinica Institute of Astronomy and Astrophysics), and K.C. Wong (University of Tokyo's Kavli Institute for the Physics and Mathematics of the Universe)

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Compass Image of Gravitationally Lensed Quasars
Color Info
Color InfoA brief description of the methods used to convert telescope data into the color image being presented.

These images are a composite of separate exposures acquired by the ACS/WFC instrument on the Hubble Space Telescope. Several filters were used to sample narrow wavelength ranges. The color results from assigning different hues (colors) to each monochromatic (grayscale) image associated with an individual filter. In this case, the assigned colors are Cyan: F555W/F606W Orange: F814W.

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Details

Last Updated
Mar 28, 2025
Contact
Media

Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov

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