论文标题
胚胎源提出的无线电对应物的基线干涉测量值很长
Very Long Baseline Interferometry Observations of the Proposed Radio Counterpart of an EGRET Source
论文作者
论文摘要
我们提出了无线电源NVSS J182659+343113(以下简称J1826+3431)的高分辨率无线电干涉成像观察,这是$γ$ ray源的拟议无线电源,3EG J1824+3441通过Enity Gamma Ray repient theervity op the Rayer the Rayer the Rayer the Rayer the ray gray the ray the rayer the ray reportion the ray the ray the ray gres the ray gres tha卫星。我们分析了八个档案多频率的时期,非常长的基线干涉率数据。我们成像了源的不对称核心结构,并在射流中检测到了明显的静脉运动。在观察频率最高的15.3 GHz处,核心显示高亮度温度表明多普勒的提升。此外,无线电的特征经历了大量的通量密度变化。这些发现加强了Blazar J1826+3431与可能的$γ$ ray源的先前主张,3EG J1824+3441。
We present high-resolution radio interferometric imaging observations of the radio source NVSS J182659+343113 (hereafter J1826+3431), the proposed radio counterpart of the $γ$-ray source, 3EG J1824+3441 detected by the Energetic Gamma Ray Experiment Telescope (EGRET) on board the Compton Gamma Ray Observatory satellite. We analyzed eight epochs of archival multi-frequency very long baseline interferometry data. We imaged the asymmetric core-jet structure of the source, and detected apparent superluminal motion in the jet. At the highest observing frequency, 15.3 GHz, the core shows high brightness temperature indicating Doppler boosting. Additionally, the radio features undergo substantial flux density variability. These findings strengthen the previous claim of the association of the blazar J1826+3431 with the possible $γ$-ray source, 3EG J1824+3441.