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
A Resolved Debris Disk around the G2V star HD 107146
David R. Ardila,David A. Golimowski,John Krist,Mark Clampin,Jonathan Williams,John P. Blakeslee,Holland C. Ford,G. Hartig,G. D. Illingworth +8 more
TL;DR: In this article, the authors presented resolved scattered-light images of the debris disk around HD 107146, a G2 star 28.5 pc from the Sun, using a 1.8'' occulting spot and the F606W and F814W (broad V) filters.
Journal ArticleDOI
Collisional Vaporization of Dust and Production of Gas in the β Pictoris Dust Disk
Andrzej Czechowski,Ingrid Mann +1 more
TL;DR: In this paper, the authors examined the possibility that the gas originates from collisional vaporization of the dust in the disk and the consequences for the gas velocity distribution and the line profiles of spectral features generated by the gas.
Journal ArticleDOI
An 850 μm survey for dust around solar-mass stars
Joan Najita,Jonathan Williams +1 more
TL;DR: In this paper, the authors present the results of an 850 m JCMT/SCUBA survey for dust around 13 nearby solar-mass stars, and find that the deduced masses and radii of the dust disks in their sample are roughly consistent with models for the collisional evolution of planetesimal disks with embedded planets.
Journal ArticleDOI
Where Are The M Dwarf Disks Older Than 10 Million Years
TL;DR: In this article, the authors present 11.7-micron observations of nine late-type dwarfs obtained at the Keck I 10-meter telescope in December 2002 and April 2003.
Journal ArticleDOI
First Optical Images of Circumstellar Dust Surrounding the Debris Disk Candidate HD 32297
TL;DR: In this article, the authors present the first optical images that show the dust-scattered light morphology from 560 to 1680 AU radius, and associate HD 32297 with a wall of interstellar gas and the enigmatic region south of the Taurus molecular cloud.