G359.13142-0.20005: A steep spectrum radio pulsar candidate with an X-ray counterpart running into the Galactic Center Snake (G359.1-0.2)
arxiv(2024)
摘要
The Snake is a remarkable Galactic center radio filament with a morphology
characterized by two kinks along its ∼ 20' extent. The major and minor
kinks are located where the filament is most distorted from a linear magnetized
structure running perpendicular to the Galactic plane. We present Chandra, VLA, and MeerKAT data and report the detection of an X-ray and radio
source at the location of the major kink. High-resolution radio images of the
major kink reveal a compact source with a steep spectrum with spectral index
alpha -2.7 surrounded by extended emission. The radio luminosity and steep
spectrum of the compact source are consistent with a pulsar. We also show
flattening of the spectrum and enhanced synchrotron emissivity away from the
position of the major kink along the Snake, which suggests injection of
relativistic particles along the Snake. We argue that the major kink is created
by a fast-moving ( 500-1000 km/s), object punching into the Snake, distorting
its magnetic structure, and producing X-ray emission. X-ray emission pinpoints
an active acceleration site where the interaction is taking place. A secondary
kink is argued to be induced by the impact of the high-velocity object
producing the major kink.
更多查看译文
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要