The study of gamma-ray burst (GRB) jets has focused predominantly on the gamma-ray portion of the spectral energy distribution (SED) to understand jet properties and their physics. Recent theoretical development has turned to the lower-energy side of the SED to test competing jet models. We considered the application of wide-field X-ray detectors to extend the observation of the SED and for better distinguishing spectral models, aimed at resolving theoretical features existing at or below the sensitivity of missions such as Fermi and Swift. A proposed SmallSat reference mission is introduced, and analysis is conducted on simulated GRBs to determine its improvement in understanding the SED compared with the Fermi-gamma-ray burst monitor (GBM). Detection rates of the reference mission are simulated using a GRB population model and convolved with the energy flux needed to resolve models to find estimated rates of GRBs that the reference mission can resolve better than Fermi-GBM. We discuss the methods and results along with the scientific context for this type of mission.

中文翻译：

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在 SmallSat 平台上使用宽视场 X 射线探测器进行伽马射线暴研究

伽马射线爆发 (GRB) 喷流的研究主要集中在光谱能量分布 (SED) 的伽马射线部分，以了解喷流特性及其物理特性。最近的理论发展已转向 SED 的低能量一侧，以测试竞争性喷气机模型。我们考虑应用宽视场 X 射线探测器来扩展 SED 的观测范围，并更好地区分光谱模型，旨在解决费米和斯威夫特等任务灵敏度或低于其灵敏度的理论特征。介绍了拟议的小卫星参考任务，并对模拟伽马射线暴进行了分析，以确定与费米伽马射线暴监测器（GBM）相比，其在理解 SED 方面的改进。使用GRB种群模型模拟参考任务的探测率，并与解析模型所需的能量通量进行卷积，以找到参考任务比Fermi-GBM更好地解析的GRB估计率。我们讨论此类任务的方法和结果以及科学背景。