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- catalog abstract "Lecture on circumstellar disks, a common property of young stars, which have been shown in previous work to be suitable for the creation of planetary systems, shaving enough mass and time to build large bodies; there is some evidence that particle coagulation is underway in many young disks. The lecturer presents an analysis of the spectra and spectral energy distributions in the thermal infrared obtained from ISO observations, which show that the analysis of disk properties should be robust. Additonal ISO observations of cluster stars also shows that the planet-building regions, approximately 1 to 5 AU, evolve on similar time scales as the inner parts, disappearing in less than 10 million years. Taken together, the data support the idea that the disks build planetary systems, and there are many such systems in the Galaxy.".
- catalog contributor b10779090.
- catalog contributor b10779091.
- catalog created "[1998]".
- catalog date "1998".
- catalog date "[1998]".
- catalog dateCopyrighted "[1998]".
- catalog description "Lecture held at Phillips Auditorium, Harvard College Observatory, Apr. 30, 1998.".
- catalog description "Lecture on circumstellar disks, a common property of young stars, which have been shown in previous work to be suitable for the creation of planetary systems, shaving enough mass and time to build large bodies; there is some evidence that particle coagulation is underway in many young disks. The lecturer presents an analysis of the spectra and spectral energy distributions in the thermal infrared obtained from ISO observations, which show that the analysis of disk properties should be robust. Additonal ISO observations of cluster stars also shows that the planet-building regions, approximately 1 to 5 AU, evolve on similar time scales as the inner parts, disappearing in less than 10 million years. Taken together, the data support the idea that the disks build planetary systems, and there are many such systems in the Galaxy.".
- catalog description "VHS.".
- catalog extent "1 videocassette (ca. 65 min.) :".
- catalog isPartOf "CfA colloquium".
- catalog issued "1998".
- catalog issued "[1998]".
- catalog language "eng".
- catalog requires "VHS.".
- catalog subject "Circumstellar matter.".
- catalog subject "Disks (Astrophysics)".
- catalog subject "Extrasolar planets.".
- catalog title "Evolutionary properties of circumstellar disks and extra-solar planet formations [videorecording] / Steve Beckwith.".
- catalog type "Videotapes. local".
- catalog type "image".