Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005stard..33d...4c&link_type=abstract
StarDate magazine, vol. 33, no. 4, p. 4-9
Astronomy and Astrophysics
Astronomy
(Stars:) Supergiants, Gamma Rays: Observations, X-Rays: Stars, (Ism:) Dust, Extinction
Scientific paper
Gould's Belt, the most prominent starry feature in the Sun's neighborhood, is a zone of large supergiant stars including the Orion constellation; the bright stars of Canis Major, the Southern Cross, Centaurus, and Lupus; and the brightest stars of the Pupis, Vela, and Carina constellations. Its most prominent feature is its 20-degree tilt to the plane of the Milky Way. Gould's Belt was first noticed in 1847 by Englishman John F. W. Herschel while observing from the Cape of Good Hope in South Africa. Later, Benjamin A. Gould, the first American to earn a doctoral degree in astronomy and the founder of The Astronomical Journal, traced the belt around the entire sky. More recent studies of Gould's Belt show evidence of more than just superstars. When massive stars like those in Gould's Belt explode, they leave behind pulsars and black holes. In the 1990's several dozen gamma-ray sources were discovered to track along the path of Gould's Belt around the sky, possible evidence of the explosion of brilliant stars at an earlier time. X-ray studies suggest that the belt may actually be a disk.
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