Giant Pulses From a Tiny Star

Date: 
Wednesday, April 14, 2021 - 3:30pm PDT
Speaker: 
Natalia Lewandowska
Affiliation: 
Haverford
Location: 
Online
Event Type: 
Colloquium

Since their detection in 1967, neutron stars have been studied extensively at radio wavelengths as well as higher energies. Some neutron stars are known to spin rapidly and reach very large magnetic fields at their surface. Such fast rotating neutron stars are referred to as pulsars. They have a co-rotating magnetosphere and generate emission over large parts of the electromagnetic spectrum through processes that are not yet understood in detail. Some pulsars are not equally bright in every rotation. Instead they sporadically produce giant pulses of extremely bright radio emission. Such pulses can have durations of a few nanoseconds and intensities at least a thousand times higher than regular pulses. In this talk I will give an overview of the multi-wavelength studies of radio giant pulses that I have carried out with various facilities all around the  world with an emphasis on our latest study with the Neutron Star Interior Composition ExploreR (NICER).

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