| 书目名称 | Supernovae | | 编辑 | Albert G. Petschek | | 视频video | | | 丛书名称 | Astronomy and Astrophysics Library | | 图书封面 |  | | 描述 | For millennia mankind has watched as the heavens move in their stately progression from night to night and from year to year, presaging with their changes the changing seasons. The sun, the moon, and the planets move in what appears to be an unchanging firmament, except occasionally when a new "star" appears. Among the new stars there are comets, novae, and finally supernovae, the subject of this book. Superstitious mankind regarded these events as significant portents and recorded them carefully so that we have records of supernovae that may reach back as far as 1300 B. C. (Clark and Stephenson, 1977; Murdin and Murdin, 1985). The Cygnus Loop, believed to be a 15,000-year-old supernova remnant at a distance of only 800 pc (Chevalier and Seward, 1988), must have awed our ancestors. Tycho‘s supernova of 1572, at a distance of 2500 pc, had a magnitude of -4. 0, comparable to Venus at its brightest, and Kepler‘s supernova of 1604 had a magnitude of - 3 or so. Thus the Cygnus Loop supernova might have had a magnitude of - 6 or so, and should have been readily visible in daytime. A supernova in Vela, about 8000 B. C. was comparably close, as was SN 1006, whose magnitude may have been -9 | | 出版日期 | Book 1990 | | 关键词 | Supernova; astronomy; astrophysics; cosmology; gravitation; gravity; neutron star; spectroscopy | | 版次 | 1 | | doi | https://doi.org/10.1007/978-1-4612-3286-5 | | isbn_softcover | 978-1-4612-7951-8 | | isbn_ebook | 978-1-4612-3286-5Series ISSN 0941-7834 Series E-ISSN 2196-9698 | | issn_series | 0941-7834 | | copyright | Springer-Verlag New York Inc. 1990 |
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发表于 2025-3-21 16:04:42
