Monday, February 25, 2013

NASA Telescopes Discover Strobe-Like Flashes in a Suspected Binary Protostar

NASA's Spitzer and Hubble space telescopes have teamed up to uncover a mysterious infant star that behaves like a police strobe light.

Left: This is a false-color, infrared-light Spitzer image of LRLL 54361 inside the star-forming region IC 348 located 950 light-years away and has an unusual variable object that has the typical signature of a protostar.

  • Larger image Center: This Hubble Space Telescope monochromatic-colour image resolves the detailed structure around the protostar, consisting of two cavities that are traced by light scattered off their edges above and below a dusty disk.
  • Larger image Right: This is an artist's impression of the hypothesized central object that may be two young binary stars.
  • Larger image Image credit: NASA, ESA, J. Muzerolle (STScI), E. Furlan (NOAO and Caltech), K. Flaherty (Univ. of Ariz./Steward Observatory), Z. Balog (Max Planck Institute for Astronomy), and R. Gutermuth (Univ. Mass. Amherst) 

Image acknowledgment: R. Hurt (Caltech/Spitzer Science Center) Two of NASA's great observatories, the Spitzer and Hubble space telescopes, have teamed up to uncover a mysterious infant star that behaves like a strobe light.

Every 25.34 days, the object, designated LRLL 54361, unleashes a burst of light. Although a similar phenomenon has been observed in two other young stellar objects, this is the most powerful such beacon seen to date.

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