The `Local Volume' (ie, the sphere of radius 10 Mpc centered on the Local Group) is known to contain at least 500 known galaxies, many of which congregate in well-known groups like the Local Group, the relatively loose Sculptor Group, and the more compactCentaurus A group. Accurate distances are now available for the majority of these nearby galaxies, allowing us to visualise the Local Volume in 3D, study the local Hubble flow and its dispersion, the (baryonic) Tully-Fisher relation, the local star formaton density, etc. Individual galaxies in the Local Volume can be studied in amazing detail across a large range of wavelengths (some stunning examples are compiled in the Multiwavelength Astronomy pages). The first catalog of galaxies within 10 Mpc was copiled by Kraan-Korteweg & Tammann (1979); it contained 179 galaxies. Following numerous updates, the latest `Catalog of Neighboring Galaxies' was presented by Karachentsev et al. (2004); it contains 451 galaxies. They find that about...

Под заказ:
	OZON.ru - 20772 руб.	Перейти

Рейтинг книги: 5 из 5, 4 голос(-ов).