CAJ | 학술논문

PKS2155-304是一个典型的TeV源,在全波段都观测到光变.文章利用GeVγ辐射和X辐射观测资料确定GeVγ辐射的基本参量以及相关黑洞质量,利用光学光变周期分析中心双黑洞系统的结构参量,并利用TeV的光变时标确定TeV辐射的区域大小以及离中心的距离.从分析得到如下结论：①在中心有一个双黑洞系统,大黑洞的质量是80.8×107太阳质量,而次黑洞的质量为（3.35-5.20）×107太阳质量.该双黑洞系统的半轴和为（3.67-5.15）×1016cm.②GeVγ辐射的参量与因子来自于离中心黑洞（次黑洞）18～20斯瓦西半径处.GeVγ辐射的Doppler因子为0.31～0.45,视角为8.5°～9.4°.这里的两个值分别对应于不同的系数λ.③TeVγ辐射来自于距中心2.5～2.8斯瓦西半径处.
PKS2155-304시일개전형적TeV원,재전파단도관측도광변.문장이용GeVγ복사화X복사관측자료학정GeVγ복사적기본삼량이급상관흑동질량,이용광학광변주기분석중심쌍흑동계통적결구삼량,병이용TeV적광변시표학정TeV복사적구역대소이급리중심적거리.종분석득도여하결론：①재중심유일개쌍흑동계통,대흑동적질량시80.8×107태양질량,이차흑동적질량위（3.35-5.20）×107태양질량.해쌍흑동계통적반축화위（3.67-5.15）×1016cm.②GeVγ복사적삼량여인자래자우리중심흑동（차흑동）18～20사와서반경처.GeVγ복사적Doppler인자위0.31～0.45,시각위8.5°～9.4°.저리적량개치분별대응우불동적계수λ.③TeVγ복사래자우거중심2.5～2.8사와서반경처.
PKS 2155-304 is a typical TeV source.It shows variabilities not only in the optical region,but also in the extreme high gamma-ray region.In this work,the GeV γ-ray and X-ray emissions are used to determine the basic parameters for the secondary black hole,the optical variation period is used to determine the central structure parameters of the source,and the very rapid TeV γ-ray variation is used to determine the location of the TeV γ-ray emissions.From our calculations,following results are obtained.① There is a binary black hole system at the center with the primary black hole being 80.8×107 M⊙ and the secondary black hole being（3.35 to 5.20） ×107 M⊙.The binary black hole system with semi-major axes r=a1＋a2=（3.67-5.15）×1016 cm.②The GeV emissions are produced in a distance of 18 to 20 Schwarzschild radii（Rg） from the center of the secondary black hole.Its boosting factors are 0.31 to 0.45,the propagation angles are Φ is 8.5° to 9.4° to the line of sight for λ=1.0 and 0.1 respectively.③The TeV emissions are from a region of 2.5 to 2.8 Rg.