7–11 Jul 2025
America/Toronto timezone

Searching for Light Axions from the High Arctic

10 Jul 2025, 16:40
20m
A1502, except B1007 on Monday

A1502, except B1007 on Monday

Speaker

Prof. Jon Sievers (McGill University)

Description

The Earth's ionosphere provides a natural laboratory for searching for
resonant conversion of axions.  When the peak plasma frequency in
the ionosphere rises above the axion conversion frequency, a narrow
spectral line will appear.  ALBATROS is an array of low-frequency
radio telescopes observing the sky at low frequencies (~10 MHz and
below) from Axel Heiberg Island in the Canadian High Arctic.  The
ALBATROS stations save baseband data through the polar winter,
enabling searches for extremely narrow spectral lines, such as that
from axions.  We describe the ALBATROS axion search and progress in
the data analysis.

Presentation materials