bottom-up scenario | has definition A galaxy-formation scenario in which small galaxies form first. Larger and larger structures are then formed in due course. | ![has source: Clark, S. 1997 Towards the Edge of the Universe, Wiley, 2001-09-27 09:34:03.0 has source: Clark, S. 1997 Towards the Edge of the Universe, Wiley, 2001-09-27 09:34:03.0](facet.gif) |
has definition The idea that small structures, perhaps galaxies or even smaller substructures, form first in the universe, followed later by larger structures. | ![has source: Hawley, J.F., Halcomb, K.H. 1998 Foundations of Modern Cosmology, Oxford University Press, 2001-09-27 09:34:03.0 has source: Hawley, J.F., Halcomb, K.H. 1998 Foundations of Modern Cosmology, Oxford University Press, 2001-09-27 09:34:03.0](facet.gif) |
is a kind of galaxy theory | ![2001-09-27 09:34:03.0 2001-09-27 09:34:03.0](facet.gif) |
galaxy theory | has domain extragalactic astronomy | ![2001-09-27 09:34:02.0 2001-09-27 09:34:02.0](facet.gif) |
theory | has validity correct or incorrect with caveats | ![2001-09-27 09:33:53.0 2001-09-27 09:33:53.0](facet.gif) |
has author or reasearch group | ![2001-09-27 09:33:53.0 2001-09-27 09:33:53.0](facet.gif) |
has date or a range of dates for which the theory was active | ![2001-09-27 09:33:53.0 2001-09-27 09:33:53.0](facet.gif) |