Title: Fast Radio Bursts from Interacting Binary Neutron Star SystemsAuthor: Bing ZhangFirst Author’s Institution: Department of Physics and Astronomy, University of Nevada, Las Vegas, Las Vegas, NV 89154Status: Published in ApJL [open access on the arXiv]
This guest post was written by Yujia Wei, a junior-year undergraduate student at the School of Astronomy and Space Science, Nanjing University. She is interested in exploring the origins of fast radio bursts and gamma-ray bursts, the physics of solar flares, and the formation and evolution of galaxies. In addition to astronomy research, Yujia also likes traveling, painting, and photography.
Fast radio bursts (FRBs) are transient radio pulses that last a few milliseconds and have large dispersion measures (DMs). The DM is a measure of the time delay of radio signals at different frequencies (the lower the frequency, the later the arrival time) caused by passing through free electrons. Several observed FRBs are observed to repeat; they are called repeating FRBs.
Figure 1. A fast radio burst’s frequency evolution (main panel) and integrated pulse shape (inset panel), whose data was collected on April 24 2001. [Credit: Figure 2 in Lorimer et al. 2007]
Since the first FRB discovery in 2007, many FRBs have ...