Dual-channel Extreme Ultraviolet Continuum Spectrograph (DEUCE)

  • Mission
  • Vehicle
  • Launch
  • Photos

DEUCE aims to directly measure the amount of the Lyman continuum (LyC) radiation that is being produced by early B stars in our own galaxy, the Milky Way. One of the major questions for modern astrophysics is how and when galaxies first formed and how did their formation "feedback" into their circumgalactic environments to modify early galaxy formation during the Epoch of Reionization at z = 6—11.

DEUCE will observe the only two non-white-dwarf stars in our own galaxy known to have a sufficiently low neutral hydrogen column density to measure their ionizing radiation directly: Beta Canis Major (βCMa) and Epsilon Canis Major (εCMa).

The Principal Investigator is Dr. Green, University of Colorado.

Drawing of a Terrier-Black Brant sounding rocket

The Black Brant 9 is a two stage sounding rocket with a Terrier first stage and Black Brant second stage. The Black Brant 9 can reach altitudes of about 600 km. Payloads weighing from 400 to 1200 pounds can be flown.

Additional sounding rocket vehicles

Google Earth Map showing White Sands Missile Range.

The first DEUCE mission was launched from White Sands Missile Range, New Mexico on October 30, 2017.