The Lexicon and Glossary of Terms in LEVEL 5 is a compilation and modern updating of astronomical terms culled from the published literature. It is designed to cover all of astronomy, including particle physics and some statistics; in this sense the Glossary is a slight departure from the extragalactic focus of the rest of the knowledge base.

It is expected that the Glossary will eventually serve as one of many entry points into the major holdings of LEVEL5. As a first step toward that goal a growing number of terms have "Essay" buttons associated with them (see the entries for `Seyfert Galaxy' or `Baldwin Effect', for examples). Branching to these portions of LEVEL 5 will provide the user with more expanded and deeper technical discussions of a term or topic, usually linked directly to the primary literature, and containing equations and/or graphics and additional links within LEVEL5 to full review articles, etc, as appropriate.

Below is a listing of various sources that were consulted in building the LEVEL5 Glossary.

Barry F. Madore
Pasadena
August 14, 2002

The references cited throughout the LEVEL5 Glossary come from the list below.

• [A84] = Astronomers, ed. D. Abbot, Peter Bedrick Books, New York 1984
• [C97] = Towards the Edge of the Universe, S. Clark, Wiley (1997)
• [CD99] = The Ideas of Particle Physics, G.D. Coughlan & J.E. Dodd, Cambridge University Press (1999)
• [C95] = The Alchemy of the Heavens, K. Croswell, Anchor Books (1995)
• [DC99] = The Facts on File - Dictionary of Physics, J. Daintith & J.O.E. Clark
• [D89] = The New Physics, P. Davies, Cambridge University Press (1989)
• [F88] = Coming of Age in the Milky Way, T. Ferris, Morrow (1988)
• [G99] = The Elegant Universe, B. Greene, W.W. Norton & Co., New York (1999)
• [G97] = The Inflationary Universe, A.H. Guth, Addison-Wesley 1997
• [HH98] = Foundations of Modern Cosmology, J.F. Hawley & K.H. Halcomb, Oxford University Press (1998)
• [H76] = Glossary of Astronomy and Astrophysics, J. Hopkins, University of Chicago Press (1976)
• [JJ95] = The Behavior of Chemical Elements in Stars, C. Jaschek & M. Jaschek, Cambridge University Press (1995)
• [JM92] = Dictionary of Scientific Units, H.G. Jerrard and D.B. McNeill, Chapman & Hall (1992)
• [K2000] = Supersymmetry, G. Kane (2000)
• [LLM96] = Observational Astrophysics, P. Lena, F. Lebrun, & F. Mignard, Springer (1996)
• [LB90] = The Lives and Worlds of Modern Cosmologists, Alan Lightman and Roberta Brawer, Harvard University Press (1990)
• [McL97] = Electronic Imaging in Astronomy, I.S. McLean, Wiley (1997)
• [P88] = Superstrings and the Search for a Theory of Everything, David Peat, Contemporary Books (1988)
• [S92] = Explanatory Supplement to the Astronomical Almanac, P. Seidelman, University Science Books, Mill Valley (1992)
• [Silk90] = The Big Bang, J. Silk, New York: W. H. Publishers (1990)
• [BFM] = Original composition by B.F. Madore for LEVEL5.
• [SEF01] = The Shodor Education Foundation, Inc. (2001) http://www.shodor.org