6
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: not found
      • Article: not found

      Debris Disk Evolution around A Stars

      Read this article at

      ScienceOpenPublisher
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Related collections

          Most cited references32

          • Record: found
          • Abstract: found
          • Article: not found

          Origin of the cataclysmic Late Heavy Bombardment period of the terrestrial planets.

          The petrology record on the Moon suggests that a cataclysmic spike in the cratering rate occurred approximately 700 million years after the planets formed; this event is known as the Late Heavy Bombardment (LHB). Planetary formation theories cannot naturally account for an intense period of planetesimal bombardment so late in Solar System history. Several models have been proposed to explain a late impact spike, but none of them has been set within a self-consistent framework of Solar System evolution. Here we propose that the LHB was triggered by the rapid migration of the giant planets, which occurred after a long quiescent period. During this burst of migration, the planetesimal disk outside the orbits of the planets was destabilized, causing a sudden massive delivery of planetesimals to the inner Solar System. The asteroid belt was also strongly perturbed, with these objects supplying a significant fraction of the LHB impactors in accordance with recent geochemical evidence. Our model not only naturally explains the LHB, but also reproduces the observational constraints of the outer Solar System.
            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            Young Stars Near the Sun

              Bookmark
              • Record: found
              • Abstract: not found
              • Article: not found

              Reduction Algorithms for the Multiband Imaging Photometer forSpitzer

                Bookmark

                Author and article information

                Journal
                The Astrophysical Journal
                ApJ
                University of Chicago Press
                0004-637X
                1538-4357
                December 10 2006
                December 10 2006
                : 653
                : 1
                : 675-689
                Article
                10.1086/508649
                40ed940b-ac4f-4f25-ae23-350b9c273d83
                © 2006
                History

                Comments

                Comment on this article