论文标题
余辉同步辐射遵循$ l _ {\ rm p，iso} -e _ _ {\ rm p，z}-γ_0$ gamma-ray爆发的关系吗？ GRBS 190114C，130427a和180720b的案例
Afterglow Synchrotron Radiations follow the $L_{\rm p, iso}-E_{\rm p,z}-Γ_0$ relation of Gamma-Ray Bursts? Cases of GRBs 190114C, 130427A, and 180720B
论文作者
论文摘要
GRBS 190114C，130427A和180720b的Gamma-ray爆发（GRB）余辉的双峰光谱能量分布（SED）证实它们起源于同步加速器发射（SYN）和同步体自compton self-Compton散射过程（SSC）的电子加速度加速的电子加速。观察到的频谱 - 亮度/GRB的能量关系的辐射机制和物理学仍然是空旷的问题。通过通过与Syn+SSC模型拟合其余辉SED来提取SYN组件，我们发现它们的发光度（$ l _ {\ rm syn} $），峰值能量（$ e _ {\ rm p，syn，z} $），以及$ lorentz firedball fireball（$γ_T$）的lorentz因子{ iso}-E_{\rm p,z}-Γ_{0}$ relation of prompt gamma-rays, where $L_{\rm p, iso}$ is the isotropic luminosity, $E_{\rm p, z}$ is the peak energy of the $νf_ν$ spectrum in the burst frame, and $Γ_0$ is the initial Lorentz火球的因素。为了检查晚期余泽是否与此关系一致，我们在后期余泽时计算同步子组件。发现他们也遵循相同的$ l _ {\ rm p，iso} -e _ {\ rm p，z}-γ_{0} $关系，尽管它们与$ l _ {\ rm p，iso} - iso} -e _ _ _ _ {\ rm p，z {\ rm p，z} $关系不一致。我们的结果可能意味着$ l _ {\ rm p，iso} -e _ {\ rm p，z}-γ_{0} $将是GRB中GRB JETS中加速的电子同步辐射的通用功能。它的起源尚未完全理解，并简要讨论了可能的解释。
Bimodal spectral energy distributions (SEDs) of gamma-ray burst (GRB) afterglow of GRBs 190114C, 130427A and 180720B confirm that they are originated from the synchrotron emission (Syn) and synchrotron self-Compton Scattering process (SSC) of electrons accelerated in the jets. The radiation mechanism and the physics of the observed spectrum-luminosity/energy relations of GRBs remain as open questions. By extracting the Syn component through fitting their early afterglow SEDs with the Syn+SSC model, we find that their luminosity ($L_{\rm syn}$), peak energy ($E_{\rm p,syn,z}$), and the Lorentz factor of the afterglow fireball ($Γ_t$) follow the $L_{\rm p, iso}-E_{\rm p,z}-Γ_{0}$ relation of prompt gamma-rays, where $L_{\rm p, iso}$ is the isotropic luminosity, $E_{\rm p, z}$ is the peak energy of the $νf_ν$ spectrum in the burst frame, and $Γ_0$ is the initial Lorentz factor of the fireball. To examine whether late afterglows is consistent with this relation, we calculate the synchrotron component at late afterglows. It is found that they also follow the same $L_{\rm p, iso}-E_{\rm p,z}-Γ_{0}$ relation, albeit they are not consistent with the $L_{\rm p, iso}-E_{\rm p,z}$ relation. Our results may imply that the $L_{\rm p, iso}-E_{\rm p,z}-Γ_{0}$ would be an universal feature of synchrotron radiations of electrons accelerated in GRB jets throughout the prompt and afterglow phases among GRBs. Its origin is not fully understood and possible explanations are briefly discussed.
