论文标题
在RedShift 4.3时，检测距离射线射线和光学排放的同时亮度和光学排放
Detections of simultaneous brightening of gamma-ray and optical emissions of a distant blazar GB 1508+5714 at redshift 4.3
论文作者
论文摘要
GB 1508+5714是高红速度Blazar（$ Z $ = 4.3），并且已经在其方向上检测到了频谱软$γ$ -Ray源。通过分析11.4-yr {\ it fermi} -LAT数据，确认了$γ$ -Ray源的显着长期可变性。更重要的是，$γ$ - 雷排放耀斑出现在2018年数十天的时代，当时通量大约是全球拟合度价值的四倍。同时，来自{\ it zwicky}瞬态设施光曲线的$ r $ - 和$ i $ bands的光耀斑均显示。对同时的$γ$ ray和光学亮度的检测提供了决定性的证据，可以固定$γ$ - 雷来源与GB 1508+5714之间的关联，这使得它{\ it iT first}确定了$γ$ -2. $-γ$ -RARE BLAZAR超出了Redshift 4。在高速公路上进行了宽敞的磁态分布。即将到来的宽大的光学望远镜以及$γ$ - 射线的天空测量师将在宇宙早期扮演的AGN喷气机扮演的角色。
GB 1508+5714 is a high-redshift blazar ($z$ = 4.3) and a spectrally soft $γ$-ray source has been detected in its direction. By analyzing 11.4-yr {\it Fermi}-LAT data, significant long-term variability of the $γ$-ray source is confirmed. More importantly, a $γ$-ray emission flare appeared in an epoch of several tens of days in year 2018, when the flux is about four times of the value from the global fit. Meanwhile, optical flares displayed in both $r$- and $i$-bands from the {\it Zwicky} Transient Facility light curves. Detections of the simultaneous $γ$-ray and optical brightening provide a decisive evidence to pin down the association between the $γ$-ray source and GB 1508+5714, which makes it the {\it first} identified $γ$-ray blazar beyond redshift 4. A broadband spectral energy distribution in the high flux state is constructed and the origin of the multiwavelength brightening is also briefly discussed. Upcoming wide-deep-fast optical telescopes together with the $γ$-ray sky surveyors will shed lights on the role that the AGN jets play in the early cosmic time.
