[seminar] Astronomy Seminar on Wednesday (27th of September) - Dr. Charlotte Sobey

[Lana Ceraj]

Dear all,

Tomorrow (Wednesday) at 3 p.m. in F201 of the Physics Department dr. Charlotte Sobey is going to give a talk on pulsars and their effect on surrounding regions. 

Presenter: Dr. Charlotte Sobey (ICRAR & CSIRO, Perth, Australia)

Title: Using low-frequency polarisation observations of pulsars to investigate the 3-D structure of the Galactic magnetic field

Abstract:
Polarisation observations of pulsars using next-generation low-frequency radio telescopes provide powerful probes 
of astrophysical plasmas. For example, dispersion and rotation measures (DMs and RMs) towards pulsars provide 
an efficient method to determine the average strength and direction of magnetic fields in intervening regions.
Low-frequency radio observations with large fractional bandwidths provide precise DMs and RMs, demonstrated 
by a catalogue of RMs (corrected for ionospheric Faraday rotation) using LOFAR (Low-Frequency Array), and a 
growing complementary catalogue in the southern hemisphere using the MWA (Murchison Widefield Array). 
These measurements further our knowledge of the three-dimensional structure of the Galactic magnetic field, 
which plays a role in many astrophysical processes, but is not yet well understood.

See you Tomorrow.

Cheers,
Lana Ceraj
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