Speaker
Description
Axions may be produced in abundance within compact stars such as white dwarfs and neutron stars. It has long been recognized that axion production in compact stars opens up a new pathway for them to cool. I will point out, however, that axions may also lead to novel X-ray signatures around these stars, whereby the axions are produced within the stellar cores and then convert to photons in the strong magnetic fields surrounding the stars. I will discuss recent data taken by the XMM-Newton and Chandra telescopes from nearby neutron stars and white dwarfs that provide some of the strongest probes to-date of axions by searching for these processes. In particular, I will focus on the analysis of 40 ks of dedicated Chandra data taken in late 2020 towards the magnetic white dwarf RE J0317-853.
Speaker | Benjamin Safdi |
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