论文标题
限制Pevatron候选人Hess J1702-420的Leptonic排放方案,并具有深XMM-Newton观测
Constraining leptonic emission scenarios for the PeVatron candidate HESS J1702-420 with deep XMM-Newton observations
论文作者
论文摘要
由于发现了一个小规模的排放子区域,其身份不明的TEV来源HESS J1702-420最近被提议为新的Hadronic Pevatron候选人,其最高可达100 TEV的小规模排放子区域(名为Hess J1702-420A)。鉴于难以区分基于H.E.S.S.我们仅测量,我们选择了多波长方法。使用XMM-Newton卫星进行了深度的X射线观察,目的是探测与隐藏的松性加速器的可能关联。在X射线数据中,没有发现HESS J1702-420a明确的赫斯J1702-420a的证据。在排除了与附近所有X射线点源的关联之后,我们在HESS J1702-420A区域中衍生出严格的上限X射线发射和平均磁场。我们还报告了新的扩展X射线源的偶然发现,该X射线源与Hess J1702-420a的关联并不明显,但也不能排除。在这项工作的背景下,开发了一组专门针对X射线和伽马射线数据的多波长建模的脚本,该脚本是基于伽马医生的Naima和Xspec的,并与本文一起公开提供。
The unidentified TeV source HESS J1702-420 has recently been proposed as a new hadronic PeVatron candidate, based on the discovery of a small-scale emission sub-region with extremely hard gamma-ray spectrum up to 100 TeV (named HESS J1702-420A). Given the difficulty to discriminate between a hadronic or leptonic origin of the TeV emission, based on the H.E.S.S. measurement alone, we opted for a multi-wavelength approach. A deep X-ray observation was carried out using the XMM-Newton satellite, with the goal of probing a possible association with a hidden leptonic accelerator. No evidence of a clear counterpart for HESS J1702-420A was found in the X-ray data. After excluding an association with all nearby X-ray point sources, we derived strict upper limits on the diffuse X-ray emission and average magnetic field in the HESS J1702-420A region. We additionally report the serendipitous discovery of a new extended X-ray source, whose association with HESS J1702-420A is not obvious but cannot be ruled out either. A set of scripts dedicated to the multi-wavelength modeling of X-ray and gamma-ray data, based on Gammapy, Naima and Xspec, was developed in the context of this work and is made publicly available along with this paper.