The formation and evolution of planetary systems: First results from a Spitzer legacy science program

M. R. Meyer, L. A. Hillenbrand, D. E. Backman, S. V.W. Beckwith, J. Bouwman, T. Y. Brooke, J. M. Carpenter, M. Cohen, U. Gorti, T. Henning, D. C. Hines, D. Hollenbach, J. S. Kim, J. Lunine, R. Malhotra, E. E. Mamajek, S. Metchev, A. Moro-Martin, P. Morris, J. NajitaD. L. Padgett, J. Rodmann, M. D. Silverstone, D. R. Soderblom, J. R. Stauffer, E. B. Stobie, S. E. Strom, D. M. Watson, S. J. Weidenschilling, S. Wolf, E. Young, C. W. Engelbracht, K. D. Gordon, K. Misselt, J. Morrison, J. Muzerolle, K. Su

Research output: Contribution to journalArticlepeer-review

65 Scopus citations


We present 3-160 μm photometry obtained with the Infrared Array Camera (IRAC) and Multiband Imaging Photometer for Spitzer (MIPS) instruments for the first five targets from the Spitzer Space Telescope Legacy Science Program "Formation and Evolution of Planetary Systems" and 4-35 μm spectrophotometry obtained with the Infrared Spectrograph (IRS) for two sources. We discuss in detail our observations of the debris disks surrounding HD 105 (G0 V, 30 ± 10 Myr) and HD 150706 (G3 V, ∼700 ± 300 Myr). For HD 105, possible interpretations include large bodies clearing the dust inside of 45 AU or a reservoir of gas capable of sculpting the dust distribution. The disk surrounding HD 150706 also exhibits evidence of a large inner hole in its dust distribution. Of the four survey targets without previously detected IR excess, spanning ages 30 Myr to 3 Gyr, the new detection of excess in just one system of intermediate age suggests a variety of initial conditions or divergent evolutionary paths for debris disk systems orbiting solar-type stars.

Original languageEnglish (US)
Pages (from-to)422-427
Number of pages6
JournalAstrophysical Journal, Supplement Series
Issue number1
StatePublished - Sep 2004


  • Circumstellar matter
  • Infrared: stars
  • Planetary systems: protoplanetary disks

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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