论文标题
PSRJ 2032+4127的多波长观察结果在2017年Periastron通道期间
Multi-wavelength observations of PSRJ 2032+4127 during the 2017 periastron passage
论文作者
论文摘要
PSRJ 2032+4127只是第二个已知的伽马射线二进制文件，可以证实年轻的无线电脉冲星在围绕BE-Star的轨道上。脉冲星风与伴侣的质量流出的相互作用导致从无线电到TEV能量的宽带发射。在当前的论文中，我们介绍了使用北欧光学望远镜对2017 Periastron通道进行光学监测的结果。这些观察结果与X射线（Swift/XRT，Nustar）和GEV（FERMI/LAT）监测相辅相成。联合分析HALPHA线的参数的演变和宽带（X射线至TEV）的光谱形状，使我们能够提出一个模型，将观察到的发射与Pulsar的相互作用与Pulsar的相互作用和恒星风的相互作用相互作用，并在倾斜的圆盘几何形状的假设下。我们的模型允许观察到的系统的通量和光谱演变以自洽的方式解释。
PSRJ 2032+4127 is only the second known gamma-ray binary where it is confirmed that a young radio pulsar is in orbit around a Be-star. The interaction of the pulsar wind with the mass outflow from the companion leads to broad band emission from radio up to TeV energies. In the current paper we present results of optical monitoring of the 2017 periastron passage with the Nordic Optical Telescope. These observations are complemented by X-ray (Swift/XRT, NuSTAR) and GeV (Fermi/LAT) monitoring. Joint analysis of the evolution of the parameters of the Halpha line and the broadband (X-ray to TeV) spectral shape allows us to propose a model linking the observed emission to the interaction of the pulsar and Be-star winds under the assumption of the inclined disc geometry. Our model allows the observed flux and spectral evolution of the system to be explained in a self-consistent way.
