Speaker
Dr
Haoning He
(UCLA)
Description
The Telescope Array (TA) collaboration has reported a hotspot, a cluster of 19 cosmic ray events with energies above $57~\rm EeV$
in a circle of $20^\circ$ radius centered at ${\rm R.A.}(\alpha)=146.^\circ7$, ${\rm Dec.}(\delta)=43.^\circ2$.
We explore the hypothesis that the hotspot could originate from a single source. By considering the energy dependent
deflections that are expected to affect arrival directions of cosmic rays propagating in cosmic magnetic fields,
we identify the nearby starburst galaxy M82 and the bright nearby blazar Mrk 180 as two likely candidates.
We discuss prospects of discriminating between the candidate sources with current and future spectral data.
| Registration number following "ICRC2015-I/" | 649 |
|---|---|
| Collaboration | -- not specified -- |
Author
Dr
Haoning He
(UCLA)
Co-authors
Alexander Kusenko
(UCLA)
Dr
Ruizhi Yang
(MPIK, Germany)
Dr
Shigehiro NAGATAKI
(Riken)
Dr
Yizhong Fan
(Purple Mountain Observatory, China)
