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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents

ID: 276850.0, MPI für Astronomie / Publikationen_mpia
The formation and evolution of planetary systems: First results from a Spitzer legacy science program
Authors:Moro-Martín, A.; Meyer, M. R.; Hillenbrand, L. A.; Backman, D. E.; Beckwith, S. V. W.; Bouwman, J.; Brooke, T. Y.; Carpenter, J. M.; Cohen, M.; Gorti, U.; Henning, Th.; Hines, D. C.; Hollenbach, D.; Kim, J. S.; Lunine, J.; Malhotra, R.; Mamajek, E. E.; Metchev, S.; Morris, P.; Najita, J.; Padjett, D. L.; Rodmann, J.; Silverstone, M. D.; Soderblom, D. R.; Stauffer, J. R.; Stobie, E. B.; Strom, S. E.; Watson, D. M.; Weidenschilling, S. J.; Wolf, S.; Young, E.
Place of Publication:Noordwijk
Date of Publication (YYYY-MM-DD):2005
Title of Proceedings:The Dusty and Molecular Universe: A Prelude to Herschel and ALMA
Start Page:469
End Page:470
Title of Series:ESA SP-
Volume (in Series):577
Review Status:not specified
Audience:Experts Only
Abstract / Description:We present 3-160 mum photometry obtained with IRAC and MIPS, spectrophotometry from 5-35 mum using IRS low resolution, and IRS high resolution spectrum of HD 105 (G0 V, 30±10 Myr, 40±1 pc) and HD 150706 (G3 V, 700±300 Myr, 27±0.4 pc). 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. We place preliminary upper limits on the remnant molecular gas. The disk surrounding HD 150706 also exhibits evidence of a large inner hole. Of the four survey targets (0.03-3 Gyr) without previously detected IR excess, 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.
Free Keywords:Circumstellar Matter; Infrared: Stars; Planetary Systems: Protoplanetary Disks
External Publication Status:published
Document Type:Conference-Paper
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:URL:http://adsabs.harvard.edu/cgi-bin/nph- bib_query?b... [ID No:1]
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