7-11 July 2014
Africa/Johannesburg timezone
<a href="http://events.saip.org.za/internalPage.py?pageId=16&confId=34"><font color=#0000ff>SAIP2014 Proceedings published on 17 April 2015</font></a>

Neutrino Events at IceCube and the Fermi Bubbles

9 Jul 2014, 14:00
20m
D Les 203

D Les 203

Oral Presentation Track D1 - Astrophysics Astro

Speaker

Dr Lili Yang (University of Nova Gorica)

Main supervisor (name and email)<br>and his / her institution

Cecilia Lunardini, Cecilia.Lunardini@asu.edu, Arizona State University

Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?

No

Level for award<br>&nbsp;(Hons, MSc, <br> &nbsp; PhD)?

PhD

Apply to be<br> considered for a student <br> &nbsp; award (Yes / No)?

Yes

Abstract content <br> &nbsp; (Max 300 words)<br><a href="http://events.saip.org.za/getFile.py/access?resId=0&materialId=0&confId=34" target="_blank">Formatting &<br>Special chars</a>

The IceCube Collaboration recently announced twenty-eight events were observed with energies above ~ 30 TeV, more than expected from atmospheric backgrounds. We discuss the detectability of the Fermi Bubbles at IceCube and show that up to 4 − 5 of the 28 events could originate from the Fermi Bubbles (FB). If the observed gamma rays from the FB are created due to the baryonic mechanism, high-energy (> GeV) neutrinos should be emitted as a counterpart. These neutrinos should be detectable as shower or track-like events at a Km3 neutrino detector. For a hard primary cosmic-ray proton spectrum E-2.1 and cutoff energy at or above 10 PeV, the Fermi Bubble flux substantially exceeds the atmospheric backgrounds. For a steeper spectrum E-2.3 and/or lower cutoff energy, to observe the neutrino flux at high significance, longer running time will be required.

Primary authors

Prof. Cecilia Lunardini (Arizona State University) Dr Lili Yang (University of Nova Gorica) Prof. Soebur Razzaque (University of Johannesburg)

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