Galaxy Formation and Evolution
Springer Science & Business Media, 29 de ago de 2006 - 198 páginas
An Astronomical Life – Observing the Depths of the Universe” Though science as a subject can be di?cult, what has been more important for me is that its practice can also be rewarding fun! This book is crafted to expose the reader to the excitement of modern observational cosmology through the study of galaxy evolution over space and cosmic time. Recent extragalactic research has led to many rapid advances in the ?eld. Even a suitable skeptic of certain pronouncements about the age and structure of the Universe should be pleased with the large steps that have been taken in furthering our understanding of the Universe since the early 1990’s. My personal involvement in galaxy research goes back to the 1960’s. At that point, galaxies were easily recognized and partially understood as organized c- lections of stars and gas. What their masses were presented a problem, which I supposed would just fade away. But fade it didn’t. Distant active nuclei and quasars were discovered in the mid-1960’s. A c- mon view of QSOs was that they have large redshifts, but what use are they for cosmology or normal galaxy astrophysics? I shared that conclusion. My expec- tions fell below their potential utility. In short, the Universe of our expectations rarely matches the Universe as it is discovered.
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absorption abundance accretion angular ApJL astrophysical asymmetry baryons clouds comoving Conselice continuum correlation function correlation length cosmic cosmological constant dark matter detected disk distant galaxies Einstein–de Sitter emission lines emission-line energy density epoch erg s−1 evolution extragalactic Figure flat flux formation fraction function of redshift galactic galaxy clusters globular clusters halos high redshift high-z Hubble constant increase ionized larger LBGs low-redshift luminosity distance luminosity function luminous Lyman magnitude mass massive mergers metallicity MNRAS morphological nearby number density observations optical over-dense parameters photometric photons physical population QSOs quasars radiation radio galaxies redshift range regions relative resolution sample scale shows simulations sources Space Telescope spatial spectra spectroscopy spectrum Spinrad spirals star-forming starburst stars Steidel stellar Strehl ratios structure sub-millimeter suggests surface brightness surface density survey Universe wavelengths WMAP X-ray ΩΛ