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Formation and evolution of planetary systems: Cold outer disks associated with sun-like stars

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dc.contributor.authorKim, JS
dc.contributor.authorHines, DC
dc.contributor.authorBackman, DE
dc.contributor.authorHillenbrand, LA
dc.contributor.authorMeyer, MR
dc.contributor.authorRodmann, J
dc.contributor.authorMoro-Martin, A
dc.contributor.authorCarpenter, JM
dc.contributor.authorSilverstone, MD
dc.contributor.authorBouwman, J
dc.contributor.authorMamajek, EE
dc.contributor.authorWolf, S
dc.contributor.authorMalhotra, R
dc.contributor.authorPascucci, I
dc.contributor.authorNajita, J
dc.contributor.authorPadgett, DL
dc.contributor.authorHenning, T
dc.contributor.authorBrooke, TY
dc.contributor.authorCohen, M
dc.contributor.authorStrom, SE
dc.contributor.authorStobie, EB
dc.contributor.authorEngelbracht, CW
dc.contributor.authorGordon, KD
dc.contributor.authorMisselt, K
dc.contributor.authorMorrison, JE
dc.contributor.authorMuzerolle, J
dc.contributor.authorSu, KYL
dc.contributor.otherUniversity of Arizona
dc.contributor.otherNational Aeronautics & Space Administration (NASA)
dc.contributor.otherNASA Ames Research Center
dc.contributor.otherCalifornia Institute of Technology
dc.contributor.otherMax Planck Society
dc.contributor.otherPrinceton University
dc.contributor.otherHarvard University
dc.contributor.otherSmithsonian Astrophysical Observatory
dc.contributor.otherSmithsonian Institution
dc.contributor.otherNational Optical Astronomy Observatory
dc.contributor.otherUniversity of California System
dc.contributor.otherUniversity of California Berkeley
dc.contributor.otherUniversity of Alabama Tuscaloosa
dc.date.accessioned2019-06-14T18:54:46Z
dc.date.available2019-06-14T18:54:46Z
dc.date.issued2005-10-10
dc.description.abstractWe present the discovery of debris systems around three Sun-like stars based on observations performed with the Spitzer Space Telescope as part of a Legacy Science Program, "The Formation and Evolution of Planetary Systems'' ( FEPS). We also confirm the presence of debris around two other stars. All the stars exhibit infrared emission in excess of the expected photospheres in the 70 mu m band but are consistent with photospheric emission at <= 33 mu m. This restricts the maximum temperature of debris in equilibrium with the stellar radiation to T < 70 K. We find that these sources are relatively old in the FEPS sample, in the age range 0.7 - 3 Gyr. On the basis of models of the spectral energy distributions, we suggest that these debris systems represent materials generated by collisions of planetesimal belts. We speculate on the nature of these systems through comparisons to our own Kuiper Belt, and on the possible presence of planet( s) responsible for stirring the system and ultimately releasing dust through collisions. We further report observations of a nearby star HD 13974 ( d 11 pc) that are indistinguishable from a bare photosphere at both 24 and 70 mu m. The observations place strong upper limits on the presence of any cold dust in this nearby system (L-IR/L-* < 10 (-5.2)).en_US
dc.format.mimetypeapplication/pdf
dc.identifier.citationKim, J., et al. (2005): Formation and Evolution of Planetary Systems: Cold Outer Disks Associated with Sun-like Stars. The Astronomical Journal, 632(1). DOI: https://doi.org/10.1086/432863
dc.identifier.doi10.1086/432863
dc.identifier.orcidhttps://orcid.org/0000-0001-7841-3452
dc.identifier.orcidhttps://orcid.org/0000-0002-1493-300X
dc.identifier.orcidhttps://orcid.org/0000-0001-5340-6774
dc.identifier.orcidhttps://orcid.org/0000-0001-9504-8426
dc.identifier.orcidhttps://orcid.org/0000-0003-4757-2500
dc.identifier.orcidhttps://orcid.org/0000-0002-1226-3305
dc.identifier.orcidhttps://orcid.org/0000-0003-2251-0602
dc.identifier.orcidhttps://orcid.org/0000-0002-3532-5580
dc.identifier.urihttp://ir.ua.edu/handle/123456789/5762
dc.languageEnglish
dc.language.isoen_US
dc.publisherIOP Publishing
dc.subjectcircumstellar matter
dc.subjectplanetary systems : formation
dc.subjectstars : formation
dc.subjectMULTIBAND IMAGING PHOTOMETER
dc.subjectSPECTRAL IRRADIANCE CALIBRATION
dc.subjectMAIN-SEQUENCE STARS
dc.subjectKUIPER-BELT DUST
dc.subjectDEBRIS DISKS
dc.subjectINFRARED SPECTROGRAPH
dc.subjectREDUCTION ALGORITHMS
dc.subjectVEGA PHENOMENON
dc.subjectAGE-DEPENDENCE
dc.subjectSPITZER
dc.subjectAstronomy & Astrophysics
dc.titleFormation and evolution of planetary systems: Cold outer disks associated with sun-like starsen_US
dc.typetext
dc.typeArticle

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