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What is Understanding FRBs and Dispersion Measure about?
FRBs are transient radio pulses of unknown origin. The dispersion measure (DM) of FRBs, which is the time delay of different radio frequency components due to interactions with electrons and ions during propagation, can provide distance information about FRBs. The NE2001 model maps the free electron density of the Milky Way galaxy based on pulsar dispersion measure measurements and can help evaluate if observed FRB DMs are consistent with an extragalactic origin.
- Author
- Latios Sheng
- Language
- EN