3 papers
astro-ph.HE2025
A Melody in the Noise: Modeling Echoes of the Crab Nebula
Thierry Serafin Nadeau, Marten H. van Kerkwijk
Pulses from the Crab pulsar are often followed by "echoes", produced by radiation that was deflected by structures in the Crab nebula and thus traveled via longer paths. We describ…
astro-ph.HE2025
Echoes in Different Tempo: Long-Term Monitoring of Crab Echoes with CHIME
Thierry Serafin Nadeau, Marten H. van Kerkwijk, Jing Luo +4
The Crab Pulsar is known to feature plasma lensing events known as echoes. These events are characterized by additional components in the pulse profile which are produced by additi…
astro-ph.HE2024
Associations Between Scattering Screens and Interstellar Medium Filaments
Ashley M. Stock, Marten H. van Kerkwijk
Pulsar scintillation can be used to measure small scale structure in the Galaxy, but little is known about the specific interstellar medium features that cause scintillation. We se…