The formation and evolution of planetary systems (FEPS): Discovery of an unusual debris system associated with HD 12039

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dc.contributor.authorHines, DC
dc.contributor.authorBackman, DE
dc.contributor.authorBouwman, J
dc.contributor.authorHillenbrand, LA
dc.contributor.authorCarpenter, JM
dc.contributor.authorMeyer, MR
dc.contributor.authorKim, JS
dc.contributor.authorSilverstone, MD
dc.contributor.authorRodmann, J
dc.contributor.authorWolf, S
dc.contributor.authorMamajek, EE
dc.contributor.authorBrooke, TY
dc.contributor.authorPadgett, DL
dc.contributor.authorHenning, T
dc.contributor.authorMoro-Martin, A
dc.contributor.authorStobie, E
dc.contributor.authorGordon, KD
dc.contributor.authorMorrison, JE
dc.contributor.authorMuzerolle, J
dc.contributor.authorSu, KYL
dc.contributor.otherNational Aeronautics & Space Administration (NASA)
dc.contributor.otherMax Planck Society
dc.contributor.otherCalifornia Institute of Technology
dc.contributor.otherUniversity of Arizona
dc.contributor.otherHarvard University
dc.contributor.otherSmithsonian Astrophysical Observatory
dc.contributor.otherSmithsonian Institution
dc.contributor.otherPrinceton University
dc.contributor.otherUniversity of Alabama Tuscaloosa
dc.date.accessioned2019-06-17T16:40:57Z
dc.date.available2019-06-17T16:40:57Z
dc.date.issued2006-02-20
dc.description.abstractWe report the discovery of a debris system associated with the similar to 30 Myr old G3/5V star HD 12039 using Spitzer Space Telescope observations from 3.6-160 mu m. An observed infrared excess (L-IR/L-* = 1 x 10(-4)) above the expected photosphere for lambda greater than or similar to 14 mu m is fit by thermally emitting material with a color temperature of T similar to 110 K, warmer than the majority of debris disks identified to date around Sun-like stars. The object is not detected at 70 mu m with a 3 sigma upper limit 6 times the expected photospheric flux. The spectrum of the infrared excess can be explained by warm, optically thin material comprised of blackbody-like grains of size greater than or similar to 7 mu m that reside in a belt orbiting the star at 4-6 AU. An alternate model dominated by smaller grains, near the blowout size a similar to 0.5 mu m, located at 30-40 AU is also possible but requires the dust to have been produced recently, since such small grains will be expelled from the system by radiation pressure in approximately a few times 10(2) yr.en_US
dc.format.mimetypeapplication/pdf
dc.identifier.citationHines, D., et al. (2006): The Formation and Evolution of Planetary Systems (FEPS): Discovery of an Unusual Debris System Associated with HD 12039. The Astronomical Journal, 638(2). DOI: https://doi.org/10.1086/498929
dc.identifier.doi10.1086/498929
dc.identifier.orcidhttps://orcid.org/0000-0001-7841-3452
dc.identifier.orcidhttps://orcid.org/0000-0002-1493-300X
dc.identifier.orcidhttps://orcid.org/0000-0001-9504-8426
dc.identifier.orcidhttps://orcid.org/0000-0002-3532-5580
dc.identifier.orcidhttps://orcid.org/0000-0003-2251-0602
dc.identifier.orcidhttps://orcid.org/0000-0003-4757-2500
dc.identifier.orcidhttps://orcid.org/0000-0001-5340-6774
dc.identifier.urihttp://ir.ua.edu/handle/123456789/5769
dc.languageEnglish
dc.language.isoen_US
dc.publisherIOP Publishing
dc.subjectcircumstellar matter
dc.subjectinfrared : stars
dc.subjectplanetary systems : protoplanetary disks
dc.subjectstars : individual (HD 12039)
dc.subjectMULTIBAND IMAGING PHOTOMETER
dc.subjectINFRARED ARRAY CAMERA
dc.subjectMAIN-SEQUENCE STARS
dc.subjectSOLAR-TYPE STARS
dc.subjectVEGA PHENOMENON
dc.subjectDUSTY DEBRIS
dc.subjectHD 98800
dc.subjectREDUCTION ALGORITHMS
dc.subjectCIRCUMSTELLAR DISKS
dc.subjectZODIACAL EMISSION
dc.subjectAstronomy & Astrophysics
dc.titleThe formation and evolution of planetary systems (FEPS): Discovery of an unusual debris system associated with HD 12039en_US
dc.typetext
dc.typeArticle
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