منابع مشابه
Discovery and characterization of the binary system LSI +61303 in very high energy gamma-rays with MAGIC
6 VHE spectral and temporal properties of LSI +61 • 303 97 6.
متن کاملAll-optical Compton gamma-ray source
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متن کاملThe peak radio emission phase variations in the Be - star / X - ray source LSI + 61 ◦ 303
The orbital phase of the peak radio emission in the Be star/X-ray source LSI +61◦ 303 shows variations ranging from 0.5 to 0.9, the weaker emissions showing the larger phase. The delay in attaining peak emission is explained as due to the time required for the relativistic gas bubble responsible for the radio emission, expanding in the hot wind of the Be star, to become large enough in size to ...
متن کاملOptical and infrared modulation in the Be - star / X - ray source LSI + 61 ◦ 303
The Be star X-ray source LSI+61◦303 is found to show optical and infrared modulation with its orbital period. We show that this modulation is due to radiation from a shock produced by the companion to the Be star, while it passes through the gas envelope of the Be star in its binary motion.
متن کاملInvestigating the Effect of Gamma Ray Source Activity on Down-hole Nuclear Density Tool’s Reading Using Simulation by MCNP Code
Developing well logging methods will increase the applications of logs related to all the other geology sciences. Well logging curves introduce the essential information to evaluate reservoir characterizations, rock type and also formation fluid properties quantitatively. One of the most important parts of drilling and completion operations which affect making decision about the future planes i...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2001
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:20011390