Clump-driven galaxy evolution and quasar activity |
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| Institution: | 1. Astronomical Institute, Tohoku University, Sendai 980–8578, Japan;1. Division of Applied Mathematics, Brown University, 182 George Street, Providence, RI 02912, USA;2. Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA 02139, USA;3. Pacific Northwest National Laboratory, Richland, WA 99354, USA;1. School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, United States;2. Renewable Bioproducts Institute, Georgia Institute of Technology, Atlanta, GA 30332, United States;1. Department of Developmental and Stem Cell Biology, Beckman Research Institute of City of Hope, 1500 East Duarte Road, Duarte, CA 91010, USA;2. Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, 1500 East Duarte Road, Duarte, CA 91010, USA;3. Department of Cancer Biology, Beckman Research Institute of City of Hope, 1500 East Duarte Road, Duarte, CA 91010, USA;1. Observatório Nacional, Rua General José Cristino, 77, Rio de Janeiro, RJ, 20921-400, Brazil;2. Laboratório Interinstitucional de e-Astronomia - LIneA, Rua General José Cristino, 77, Rio de Janeiro, RJ, 20921-400, Brazil;3. LSST Project Management Office, Tucson, AZ, USA;4. Departamento de Física Matemática, Instituto de Física, Universidade de São Paulo, CP 66318, São Paulo, SP, 05314-970, Brazil;5. Centro Federal de Educação Tecnológica Celso Suckow da Fonseca - CEFET/RJ, Av. Maracanã, 229, Rio de Janeiro, RJ, 20271-110, Brazil;6. Laboratoire Lagrange, Université Côte d’Azur, Observatoire de la Côte d’Azur, CNRS, Blvd de l’Observatoire, CS 34229, 06304 Nice cedex 4, France;7. Department of Astronomy, University of Illinois, 1002 W. Green Street, Urbana, IL 61801, USA;8. National Center for Supercomputing Applications, 1205 West Clark St., Urbana, IL 61801, USA;9. School of Mathematics and Physics, University of Queensland, QLD 4072, Australia;10. ARC Centre of Excellence for All-sky Astrophysics (CAASTRO), Australia;11. Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Avda. Complutense 40, E-28040, Madrid, Spain;12. Department of Physics & Astronomy, University College London, Gower Street, London, WC1E 6BT, UK;13. Universitäts-Sternwarte, Fakultät für Physik, Ludwig-Maximilians Universität München, Scheinerstr. 1, D-81679, München, Germany;14. Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510, USA;15. Deutsches Elektronen-Synchrotron (DESY), Platanenallee 6, 15738 Zeuthen, Germany;16. Cerro Tololo Inter-American Observatory, National Optical Astronomy Observatory, Casilla 603, La Serena, Chile;17. Department of Physics and Electronics, Rhodes University, PO Box 94, Grahamstown, 6140, South Africa;18. Centre for Astrophysics and Supercomputing, Swinburne University of Technology, PO Box 218, Hawthorn, VIC 3122, Australia;19. INAF - Astrophysical Observatory of Turin, Italy;20. Institut d’Estudis Espacials de Catalunya (IEEC), 08193 Barcelona, Spain;21. Institute of Space Sciences (ICE, CSIC), Campus UAB, Carrer de Can Magrans, s/n, 08193 Barcelona, Spain;22. Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USA;23. Department of Physics, IIT Hyderabad, Kandi, Telangana 502285, India;24. Department of Astronomy, University of Michigan, Ann Arbor, MI 48109, USA;25. Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA;26. Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA;27. Instituto de Fisica Teorica UAM/CSIC, Universidad Autonoma de Madrid, 28049 Madrid, Spain;28. Santa Cruz Institute for Particle Physics, Santa Cruz, CA 95064, USA;29. Center for Cosmology and Astro-Particle Physics, The Ohio State University, Columbus, OH 43210, USA;30. Department of Astronomy, The Ohio State University, Columbus, OH 43210, USA;31. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USA;32. Australian Astronomical Observatory, North Ryde, NSW 2113, Australia;33. Sydney Institute for Astronomy, School of Physics, A28, The University of Sydney, NSW 2006, Australia;34. Institute of Cosmology & Gravitation, University of Portsmouth, Portsmouth, PO1 3FX, UK;35. George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, and Department of Physics and Astronomy, Texas A&M University, College Station, TX 77843, USA;36. Department of Astrophysical Sciences, Princeton University, Peyton Hall, Princeton, NJ 08544, USA;37. Institució Catalana de Recerca i Estudis Avançats, E-08010 Barcelona, Spain;38. Institut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, 08193 Bellaterra (Barcelona), Spain;39. Research School of Astronomy and Astrophysics, Australian National University, Canberra, ACT 2611, Australia;40. Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA 91109, USA;41. Astronomical Society of the Pacific, 100 N Main St., Suite 15, Edwarsville, IL 62025, USA;42. Instituto de Física, UFRGS, Caixa Postal 15051, Porto Alegre, RS 91501-970, Brazil;43. SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA;44. School of Physics and Astronomy, University of Southampton, Southampton, SO171 BJ, UK;45. Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas, Campinas, SP, 13083-859, Brazil;46. Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA;47. Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing, Jiangsu, China |
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| Abstract: | The collapse of a protogalaxy composed of dark matter and primordial gas has been investigated by numerical simulations and analytical multi-zone modelling in an attempt to examine the early evolution of disk galaxies. The importance of ample interstellar matter existing in young galactic disks has been highlighted. Confrontation of the theoretical results with the available observational data has led to a new picture for disk galaxy evolution, in which the bulge is the secondary object formed from disk matter. Occurrence of quasar activity is also discussed in relation to the dynamical evolution of the host galaxy. |
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