A strong flare of the H2O maser in Sagittarius B2(M)

被引：0
|
作者：
O. Ramírez Hernández
E. E. Lekht
A. M. Tolmachev
机构：
[1] Sternberg Astronomical Institute,Instituto Nacional de Astrofísica
[2] Óptica y Electrónica,Pushchino Radio Astronomy Observatory
[3] Astro Space Center,undefined
[4] Lebedev Institute of Physics,undefined
来源：
Astronomy Reports | 2005年 / 49卷
关键词：
Flare; Flux Density; Compact Group; Radio Telescope; Astronomy Observatory;
D O I：
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中图分类号：
学科分类号：
摘要：
Results of a study of a strong flare of H2O maser emission in the star-forming region Sgr B2(M) in 2004 are reported. The observations were carried out on the 22-m radio telescope of the Pushchino Radio Astronomy Observatory. The main emission, with its flux density reaching 3800 Jy, was concentrated in a narrow radial-velocity interval (about 3 km/s) and was most likely associated with the compact group r, while the emission at VLSR > 64 km/s came from group q. After 1994, the variations of the H2O maser emission in Sgr B2(M) became cyclic with a mean period of 3 years.
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页码：777 / 782
页数：5
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