A Spitzer/IRAC survey of the Orion Molecular Clouds

  title={A Spitzer/IRAC survey of the Orion Molecular Clouds},
  author={S. Thomas Megeath and Kevin M. Flaherty and Joseph L. Hora and Lori E. Allen and Giovanni G. Fazio and Ludwig Hartmann and Philip C. Myers and James C. Muzerolle and Judith L. Pipher and Nick Siegler and John Richard Stauffer and E. Young Harvard Smithsonian Center for Astrophysics and Department of Engineering Physics and Astronomy and University of Rochester and Steward Observatory and University of Arizona},
We present initial results from a survey of the Orion A and B molecular clouds made with the InfraRed Array Camera (IRAC) onboard the Spitzer Space Telescope. This survey encompasses a total of 5.6 square degrees with the sensitivity to detect objects below the hydrogen burning limit at an age of 1 Myr. These observations cover a number of known star forming regions, from the massive star forming clusters in the Orion Nebula and NGC 2024, to small groups of low mass stars in the L1641. We… CONTINUE READING

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