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نویسندگان مقالات پربازدید :
اخترفیزیک و علوم فضایی 2013
جزئیات رویداد
همایش ، رویداد ، ژورنال
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  • the broad band spectral index of tev blazars detected by fermi lat

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    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
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    • شماره تماس دبیرخانه رویداد: -
     using γ-ray data detected by fermi large area telescope (lat) and multi-wave band data for 35 tev blazars sample, we have studied the possible correlations between different broad band spectral indices ( αr.ir , αr.o , αr.x , αr.γ , αir.o , αir.x , αir.γ , αo.x , αo.γ , αr.x , αx.γ ) in all states (average/high/low). our results are as follows: (1) for our tev blazars sample, the strong positive correlations were found between αr.ir and αr.o , between αr.ir and αr.x , between αr.ir and αr.γ in all states (average/high/low); (2) for our tev blazars sample, the strong anti-correlations were found between αr.ir and αx.γ , between αr.o and αir.γ , between αr.o and αo.γ , between αr.o and αx.γ , between αir.o and αo.γ , between αr.x and αx.γ , between αir.x and αx.γ in all states (average/high/low). the results suggest that the synchrotron self-compton radiation (ssc) is the main mechanism of high energy γ-ray emission and the inverse compton scattering of circum-nuclear dust is likely to be a important complementary mechanism for tev blazars. our results also show that the possible correlations vary from state to state in the same pair of indices, which suggest that there may exist differences in the emitting process and in the location of the emitting region for different states.

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