The Formation and Evolution of Planetary Systems: First Results from a Spitzer Legacy Science Program | Zendy

Michael R. Meyer | Zendy; Lynne A. Hillenbrand | Zendy; D. E. Backman | Zendy; S. V. W. Beckwith | Zendy; J. Bouwman | Zendy; T. Y. Brooke | Zendy; John M. Carpenter | Zendy; Martin Cohen | Zendy; Uma Gorti | Zendy; Thomas Henning | Zendy; Dean C. Hines | Zendy; D. J. Hollenbach | Zendy; J. S. Kim | Zendy; J. I. Lunine | Zendy; Renu Malhotra | Zendy; Eric E. Mamajek | Zendy; Stanimir Metchev | Zendy; Amaya MoroMartín | Zendy; P. Morris | Zendy; Joan Najita | Zendy; Deborah Padgett | Zendy; J. Rodmann | Zendy; M. D. Silverstone | Zendy; David R. Soderblom | Zendy; J. R. Stauffer | Zendy; E. Stobie | Zendy; S. E. Strom | Zendy; D. M. Watson | Zendy; S. J. Weidenschilling | Zendy; S. Wolf | Zendy; Erick T. Young | Zendy; C. W. Engelbracht | Zendy; Karl D. Gordon | Zendy; K. A. Misselt | Zendy; Jane Morrison | Zendy; James Muzerolle | Zendy; K. Y. L. Su | Zendy

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The Formation and Evolution of Planetary Systems: First Results from a Spitzer Legacy Science Program

Author(s) -

Michael R. Meyer,

Lynne A. Hillenbrand,

D. E. Backman,

S. V. W. Beckwith,

J. Bouwman,

T. Y. Brooke,

John M. Carpenter,

Martin Cohen,

Uma Gorti,

Thomas Henning,

Dean C. Hines,

D. J. Hollenbach,

J. S. Kim,

J. I. Lunine,

Renu Malhotra,

Eric E. Mamajek,

Stanimir Metchev,

Amaya MoroMartín,

P. Morris,

Joan Najita,

Deborah Padgett,

J. Rodmann,

M. D. Silverstone,

David R. Soderblom,

J. R. Stauffer,

E. Stobie,

S. E. Strom,

D. M. Watson,

S. J. Weidenschilling,

S. Wolf,

Erick T. Young,

C. W. Engelbracht,

Karl D. Gordon,

K. A. Misselt,

Jane Morrison,

James Muzerolle,

K. Y. L. Su

Publication year - 2004

Publication title -

the astrophysical journal supplement series

Language(s) - English

Resource type - Journals

eISSN - 1538-4365

pISSN - 0067-0049

DOI - 10.1086/423177

Subject(s) - photometry (optics) , spitzer space telescope , physics , stars , planetary system , astrophysics , astronomy , photometer , spectrograph , debris disk , solar system , infrared , spectral line

We present 3-160 micron photometry obtained with the IRAC and MIPSinstruments for the first five targets from the Spitzer Legacy Science Program"Formation and Evolution of Planetary Systems" and 4-35 micronspectro-photometry obtained with the IRS for two sources. We discuss in detailour observations of the debris disks surrounding HD 105 (G0V, 30 +- 10 Myr) andHD 150706 (G3V, ~ 700 +- 300 Myr). For HD 105, possible interpretations includelarge bodies clearing the dust inside of 45 AU or a reservoir of gas capable ofsculpting the dust distribution. The disk surrounding HD 150706 also exhibitsevidence of a large inner hole in its dust distribution. Of the four surveytargets 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 avariety of initial conditions or divergent evolutionary paths for debris disksystems orbiting solar-type stars.Comment: Six postscript pages with one additional PDF file. To appear in the ApJ Supplement, Vol. 154, Spitzer Special Issue, September, 200

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