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- W1507261646 abstract "I review our current state of knowledge about non-thermal radiation from the Galactic Centre (GC) and Inner Galaxy. Definitionally, the Galactic nucleus is at the bottom of the Galaxy's gravitational well, rendering it a promising region to seek the signatures of dark matter decay or annihilation. It also hosts, however, the Milky Way's resident supermassive black hole and up to 10% of current massive star formation in the Galaxy. Thus the Galactic nucleus is a dynamic and highly-energized environment implying that extreme caution must be exercised in interpreting any unusual or unexpected signal from (or emerging from) the region as evidence for dark matter-related processes. One spectacular example of an `unexpected' signal is the discovery within the last few years of the `Fermi Bubbles' and, subsequently, their polarised radio counterparts. These giant lobes extend ~7 kpc from the nucleus into both north and south Galactic hemispheres. Hard-spectrum, microwave emission coincident with the lower reaches of the Bubbles has also been detected, first in WMAP, and more recently in Planck data. Debate continues as to the origin of the Bubbles and their multi-wavelength emissions: are they the signatures of relatively recent (in the last ~Myr) activity of the supermassive black hole or, alternatively, nuclear star formation? I will briefly review evidence that points to the latter interpretation." @default.
- W1507261646 created "2016-06-24" @default.
- W1507261646 creator A5004701549 @default.
- W1507261646 date "2014-11-27" @default.
- W1507261646 modified "2023-09-27" @default.
- W1507261646 title "Non-Thermal Radiation from the Inner Galaxy" @default.
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