CAJ | 학술논문

收集了29个有γ噪的Blazar天体(其中有16个BL Lac天体和13个平谱射电类星体)的近红外流量密度和γ射线流量密度，获得以下主要结果：1)23个天体中的γ射线流量密度和近红外流量密度在低态时存在较强的相关性而在高态时有弱的相关性.2)在29个天体中，有6个天体只有一个观测数据点，将其认为是高态时，γ射线流量密度与近红外光流量密度之间有弱相关性，而认为是低态时有强相关性.3)29个源的γ射线流量密度与X射线流量密度在低态时有相关性，但是γ射线流量与光学流量密度，γ射线流量与射电流量密度均没有相关性.4)在16个BL Lac天体中γ射线流量与近红外光流量不论在高态还是低态都有相关性，而13个平谱射电类星体没有相关性.讨论了γ噪Blazar天体的γ射线辐射机制，认为γ射线的辐射机制主要是同步自康普顿散射.而逆康普顿散射来自绕中心核且温度约为2000K的尘埃，这些尘埃的区域大约有r=3pc，聚束的相对论电子也可能是这种尘埃模型辐射机制的一个重要补充.平谱射电类星体和BL Lac天体的γ辐射机制可能有些不同.
수집료29개유γ조적Blazar천체(기중유16개BL Lac천체화13개평보사전류성체)적근홍외류량밀도화γ사선류량밀도，획득이하주요결과：1)23개천체중적γ사선류량밀도화근홍외류량밀도재저태시존재교강적상관성이재고태시유약적상관성.2)재29개천체중，유6개천체지유일개관측수거점，장기인위시고태시，γ사선류량밀도여근홍외광류량밀도지간유약상관성，이인위시저태시유강상관성.3)29개원적γ사선류량밀도여X사선류량밀도재저태시유상관성，단시γ사선류량여광학류량밀도，γ사선류량여사전류량밀도균몰유상관성.4)재16개BL Lac천체중γ사선류량여근홍외광류량불론재고태환시저태도유상관성，이13개평보사전류성체몰유상관성.토론료γ조Blazar천체적γ사선복사궤제，인위γ사선적복사궤제주요시동보자강보돈산사.이역강보돈산사래자요중심핵차온도약위2000K적진애，저사진애적구역대약유r=3pc，취속적상대론전자야가능시저충진애모형복사궤제적일개중요보충.평보사전류성체화BL Lac천체적γ복사궤제가능유사불동.
We have collected 29 gamma-ray-loud blazars (16 BL Lac objects and 13 flat-spectrum radio quasars) with both observed near-IR and γ-ray flux densitees, with the following main results:(1)there is a very strong correlation between Fγ and FIR in the low state, and a weaker but also significant correlation between Fγ and FIR in the high state for 23 objects with both high and low state fluxes; (2) there is a very significant correlation between Fγ and FIR in the low state, and a weak correlation between Fγ and FIR in the high state for 29 sources; (3) there is a correlation between Fγ and Fx, but not between Fγ and FO, and FR for both the low and high state of 26 sources; (4) there is a strong correlation between Fγ and FIR in the low and high states for 15 BL Lac objects, but not for 11 flat-spectrum radio quasars. Possible constraints on the γ-ray emission mechanism are discussed. We suggest that the main gamma-ray radiation mechanism is probably the synchrotron self-Compton process. The inverse Compton scattering of the radiation from hot circumnuclear dust with Tg=2000K, which is located within the region of r≈3pc, by beamed ultrarelativistic electrons is likely to be an important complementary mechanism. In addition, the γ-ray emission may be somewhat different for BL Lac objects and flat-spectrum radio quasars.