Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010ara%26a..48....1l&link_type=abstract
Annual Review of Astronomy and Astrophysics, vol. 48, p.1-19
Astronomy and Astrophysics
Astrophysics
Scientific paper
Is space-time only brought into being by its energy content? The jury is still out, but other questions that have been with me for much of my life—giant black holes in galactic nuclei, the formation of the Galaxy, the connection between first-order phase transitions and negative specific heats, the cause of the large-scale flow of galaxies relative to the cosmic microwave background—have all received reasonable answers. I have found great fun in understanding the dynamical mechanisms underlying such phenomena as magnetohydrodynamic jets, relativistic disks, and the bars, spirals, and chemical evolution of galaxies. The great challenges for future astronomers will be the exploration of the 96% of the Universe now believed to be neither atomic nor baryonic but perhaps partially leptonic. However, most advances do not come via frontal attack but from “bread-and-butter” investigations in related areas where observation is possible today!
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