The GALEX mission and detectors

Oswald Siegmund, Barry Welsh, Christopher Martin, Tom Barlow, Luciana Bianchi, Yong Ik Byun, Karl Forster, Peter G. Friedman, Patrick Jelinsky, Barry Madore, Roger Malina, Bruno Milliard, Patrick Morrissey, Susan Neff, Mike Rich, David Schiminovich, Todd Small, Alex Szalay, Ted Wyder

Research output: Contribution to journalConference articlepeer-review

17 Citations (Scopus)


We describe the Galaxy Evolution Explorer (GALEX) satellite that was launched in April 2003 specifically to accomplish far ultraviolet (FUV) and near ultraviolet (NUV) imaging and spectroscopic sky-surveys. GALEX is currently providing new and significant information on how galaxies form and evolve over a period that encompasses 80% of the history of the Universe. This is being accomplished by the precise measurement of the UV brightness of galaxies which is a direct measurement of their rate of star formation. We briefly describe the design of the GALEX mission followed by an overview of the instrumentation that comprises the science pay load. We then focus on a description of the development of the UV sealed tube micro-channel plate detectors and provide data that describe their on-orbit performance. Finally, we provide a short overview of some of the science highlights obtained with GALEX.

Original languageEnglish
Pages (from-to)13-24
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
Issue numberPART 1
Publication statusPublished - 2004
EventUV and Gamma-Ray Space Telescope Systems - Glasgow, United Kingdom
Duration: 2004 Jun 212004 Jun 24

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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