Imagine the Universe!

The Ariel V Satellite


artist concept of Ariel V Ariel V was launched into a low inclination (2.8 degrees) orbit from the San Marco launch platform in the Indian Ocean on 15 October 1974. The mission was a British-USA collaboration. The Science Research Council managed the project for the UK and GSFC/NASA for the USA. Ariel V was dedicated to monitoring the X-ray sky with a comprehensive payload. The mission ended in the spring of 1980.

Mission Characteristics

* Lifetime : 15 October 1974 - 14 March 1980
* Energy Range : 0.3-40 keV
* Payload :
  • Experiments aligned with the spin axis.
    • Rotation Modulation Collimator (RMC) (0.3-30 keV).
    • High resolution proportional counter spectrometer.
    • Polarimeter/spectrometer.
    • Scintillation telescope.
  • All-Sky Monitor (ASM) a small (~1 cm2) pinhole camera (3-6 keV).
  • Sky Survey Instrument (SSI) composite of two proportional counters with 290 cm2 effective area each (1.5-20 keV).
* Science Highlights:
  • Long-term monitoring of numerous X-ray sources.
  • Discovery of several long period (minutes) X-ray pulsars.
  • Discovery of several bright X-ray transients probably containing a Black Hole (e.g. A0620-00=Nova Mon 1975).
  • Establishing that Seyfert I galaxies (AGN) are a class of X-ray emitters.
  • Discovery of iron line emission in extragalactic sources.
* Archive : Lightcurves from the ASM. Raw data and the 3rd Ariel V catalog from the SSI.

[About Ariel V] (http://heasarc.gsfc.nasa.gov/docs/ariel5/ariel5_about.html) [Archive] (http://heasarc.gsfc.nasa.gov/docs/ariel5/archive/ariel5_archive.html) [Gallery] (http://heasarc.gsfc.nasa.gov/docs/ariel5/ariel5_images.html) [Publications] (http://heasarc.gsfc.nasa.gov/docs/ariel5/bib/ariel5_biblio.html)
Imagine the Universe is a service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Nicholas White (Director), within the Laboratory for High Energy Astrophysics at NASA's Goddard Space Flight Center.

The Imagine Team
Project Leader: Dr. Jim Lochner
All material on this site has been created and updated between 1997-2004.

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