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Black holes, galaxies and cosmology
General relativity, curved spacetime and black holes, the Milky Way and other galaxies, quasars and dark matter, then the expanding universe, the Big Bang and the search for life elsewhere.
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正面 accretion disk背面 the disk of gas and dust found orbiting newborn stars, as well as compact stellar remnants such as white dwarfs, neutron stars, and black holes when they are in binary systems and are sufficiently close to their binary companions to draw off material
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正面 active galactic nuclei (AGN)背面 galaxies that are almost as luminous as quasars and share many of their properties, although to a less spectacular degree; abnormal amounts of energy are produced in their centers
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正面 active galaxies背面 galaxies that house active galactic nuclei
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正面 anthropic principle背面 idea that physical laws must be the way they are because otherwise we could not be here to measure them
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正面 astrobiology背面 the multidisciplinary study of life in the universe: its origin, evolution, distribution, and fate; similar terms are exobiology and bioastronomy
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Creative Commons Attribution 4.0 International
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- Source : https://openstax.org/books/astronomy/pages/preface — Licence : Creative Commons Attribution 4.0 International (https://creativecommons.org/licenses/by/4.0/)
- 来源
- OpenStax — Astronomy (first edition)
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- English
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- 3
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