Journal ArticleDOI
Evolution of Debris Disks
TLDR
In this article, a review describes the theoretical framework within which debris disk evolution takes place and shows how that framework has been constrained by observations, including infrared photometry of large numbers of debris disks, providing snapshots of the dust present at different evolutionary phases.Abstract:
Circumstellar dust exists around several hundred main sequence stars. For the youngest stars, that dust could be a remnant of the protoplanetary disk. Mostly it is inferred to be continuously replenished through collisions between planetesimals in belts analogous to the Solar System’s asteroid and Kuiper belts, or in collisions between growing protoplanets. The evolution of a star’s debris disk is indicative of the evolution of its planetesimal belts and may be influenced by planet formation processes, which can continue throughout the first gigayear as the planetary system settles to a stable configuration and planets form at large radii. Evidence for that evolution comes from infrared photometry of large numbers of debris disks, providing snapshots of the dust present at different evolutionary phases, as well as from images of debris disk structure. This review describes the theoretical framework within which debris disk evolution takes place and shows how that framework has been constrained by observations.read more
Citations
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Journal ArticleDOI
Protoplanetary Disks and Their Evolution
Jonathan Williams,Lucas A. Cieza +1 more
TL;DR: A review of the outer parts, beyond 1 AU, of protoplanetary disks with a focus on recent IR and (sub)millimeter results can be found in this paper.
Journal ArticleDOI
A Giant Planet Imaged in the Disk of the Young Star β Pictoris
Anne-Marie Lagrange,Mickael Bonnefoy,Gael Chauvin,Daniel Apai,David Ehrenreich,Anthony Boccaletti,Damien Gratadour,Daniel Rouan,David Mouillet,Sylvestre Lacour,M. Kasper +10 more
TL;DR: It is shown that the ~10-million-year-oldβ Pictoris system hosts a massive giant planet, β Pictoris b, located 8 to 15 astronomical units from the star, which confirms that gas giant planets form rapidly within disks and validates the use of disk structures as fingerprints of embedded planets.
Journal ArticleDOI
ALMA Survey of Lupus Protoplanetary Disks. I. Dust and Gas Masses
Megan Ansdell,Jonathan Williams,N. van der Marel,John M. Carpenter,G. Guidi,Michiel R. Hogerheijde,G. S. Mathews,Carlo F. Manara,Anna Miotello,A. Natta,A. Natta,Isa Oliveira,Marco Tazzari,Leonardo Testi,Leonardo Testi,E. F. van Dishoeck,S. E. van Terwisga +16 more
TL;DR: In this paper, the Atacama Large Millimeter/Submillimeter Array (ALMA) was used to survey 89 protoplanetary disks around stars with M∗ > 0.1 M in the young (1-3 Myr), nearby (150-200 pc) Lupus complex.
Journal ArticleDOI
SCUBA-2: the 10 000 pixel bolometer camera on the James Clerk Maxwell Telescope
Wayne S. Holland,Wayne S. Holland,D. Bintley,E. L. Chapin,Antonio Chrysostomou,Gary R. Davis,Jessica Dempsey,William Duncan,William Duncan,Michel Fich,Per Friberg,Mark Halpern,Kent D. Irwin,Tim Jenness,B. D. Kelly,M. J. MacIntosh,E. I. Robson,Douglas Scott,Peter A. R. Ade,Eli Atad-Ettedgui,David S. Berry,Simon C. Craig,Xiaofeng Gao,Andy Gibb,Gene C. Hilton,Matthew I. Hollister,Jan Kycia,David Lunney,H. McGregor,David Montgomery,William Parkes,Remo P. J. Tilanus,Joel N. Ullom,Craig Walther,Anthony J. Walton,Adam Woodcraft,Mandana Amiri,David Atkinson,B. Burger,Timothy C. Chuter,I. M. Coulson,William B. Doriese,Camelia Dunare,Frossie Economou,Michael D. Niemack,Harriet Parsons,Carl D. Reintsema,B. Sibthorpe,Ian Smail,R. V. Sudiwala,H. Thomas +50 more
TL;DR: SCUBA-2 as mentioned in this paper is an innovative 10000 pixel bolometer camera operating at submillimetre wavelengths on the James Clerk Maxwell Telescope (JCMT), which has the capability to carry out wide-field surveys to unprecedented depths, addressing key questions relating to the origins of galaxies, stars and planets.
Journal ArticleDOI
The Ages of Stars
TL;DR: A summary of the available techniques for age-dating stars and ensembles of stars, their realms of applicability, and their strengths and weaknesses can be found in this article, where the authors focus on low-mass stars.
References
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Journal ArticleDOI
Age Dependence of the Vega Phenomenon: Theory
Carsten Dominik,Greet Decin +1 more
TL;DR: In this article, an analytical model for the dust production in Vega-type systems was developed, and it was shown that the existence of both young and old Vega-like systems with large amounts of dust can be explained qualitatively by Kuiper Belt-like structures with delayed stirring.
Journal ArticleDOI
Terrestrial planet formation. i. the transition from oligarchic growth to chaotic growth
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Journal ArticleDOI
Planetary migration in a planetesimal disk: why did Neptune stop at 30 AU?
TL;DR: In this paper, the authors studied planetary migration in a gas-free disk of planetesimals and showed that Neptune could have had either a damped migration, limited to a few AUs, or a forced migration up to the disk's edge.
Journal ArticleDOI
Dust dynamics, surface brightness profiles, and thermal spectra of debris disks: the case of au microscopii
Linda E. Strubbe,Eugene Chiang +1 more
TL;DR: In this paper, the authors show that the surface brightness of the AU Mic system scales with the fraction of grains that migrate inward by CPR drag without suffering a collision, and that the inner disk and birth ring share the same optical depth, and τ⊥ r-5/2 in the outer disk.
Journal ArticleDOI
The HARPS search for southern extra-solar planets. X. A m sin i = 11 Mearth planet around the nearby spotted M dwarf GJ 674
X. Bonfils,M. Mayor,X. Delfosse,T. Forveille,M. Gillon,C. Perrier,Stéphane Udry,François Bouchy,C. Lovis,Francesco Pepe,D. Queloz,N. C. Santos,J. L. Bertaux +12 more
TL;DR: In this article, the authors used a 2-planar Keplerian model to detect a new Neptune-mass planet, GJ 674b, around a M2.5-dwarf.