. An unusual star inhabits the Pinwheel Galaxy (M33). Dubbed Variable A, the star had been in an eruptive state for at least 45 years, gradually becoming fainter and cooler. The left image shows Variable A in 1949, when it was near its brightest. The right image shows how much the star had faded by 1992. Palomar Observatory
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IDENTIFICATION OF INTEGRAL SOURCES WITH ASTRONOMICAL ARCHIVAL PLATES (1,2) (1,2) RenИ Hudec (1) , Filip Munz , Petr KubАnek( 1,2) Astronomical Institute, Academy of Sciences of the Czech Republic, CZ-251 65 Ond ejov, Czech Republic E-mail:rhudec@asu.cas.cz (2) INTEGRAL ISDC, Versoix, Switzerland ABSTRACT The ESA INTEGRAL satellite (International Gamma Ray Laboratory) launched in October 2002 continues to deliver valuable data about the gamma-ray sky. ... LEIDEN/JOHANNESBURG F.A. PLATES 8. ...
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Ссылки http://hea.iki.rssi.ru/integral06/papers/E37_Hudec01-16Feb07_17:08:21.pdf -- 742.0 Кб -- 16.02.2007 Похожие документы
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