Observation of Reconstructable Radio Emission Coincident with an X-Class Solar Flare in the Askaryan Radio Array Prototype Station

The Askaryan Radio Array (ARA) reports an observation of radio emission coincident with the "Valentine's Day" solar flare on Feb. 15\(^{\rm{th}}\), 2011 in the prototype "Testbed" station. We find \(\sim2000\) events that passed our neutrino search criteria during the 70 min...

Full description

Saved in:
Bibliographic Details
Published in:arXiv.org 2018-07
Main Authors: Allison, P, Archambault, S, Auffenberg, J, Bard, R, Beatty, J J, Beheler-Amass, M, Besson, D Z, Beydler, M, Bora, C, C -C Chen, C -H Chen, Chen, P, Clark, B A, Clough, A, Connolly, A, Davies, J, Deaconu, C, DuVernois, M A, Friedman, E, Fox, B, Gorham, P W, Hanson, J, Hanson, K, Haugen, J, Hill, B, Hoffman, K D, Hong, E, S -Y Hsu, L Hu, J -J Huang, M -H Huang, Ishihara, A, Karle, A, Kelley, J L, Khandelwal, R, Kim, M, Kravchenko, I, Kruse, J, Kurusu, K, Landsman, H, Latif, U A, A Laundrie, C -J Li, Liu, T C, M -Y Lu, Mase, K, Maunu, R, Meures, T, Miki, C, Nam, J, Nichol, R J, Nir, G, Oberla, E, ÓMurchadha, A, Pan, Y, Pfendner, C, Ratzlaff, K, Richman, M, Roth, J, Rotter, B, Sandstrom, P, Seckel, D, Y -S Shiao, Shultz, A, Song, M, Stockham, J, Stockham, M, Sullivan, M, Touart, J, H -Y Tu, Varner, G S, Vieregg, A G, M -Z Wang, S -H Wang, Wissel, S A, Yoshida, S, Young, R
Format: Article
Language:English
Subjects:
Algorithms
Celestial bodies
Cosmic ray showers
Mapping
Neutrinos
Radio emission
Signal analysis
Solar flares
Thermal noise
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The Askaryan Radio Array (ARA) reports an observation of radio emission coincident with the "Valentine's Day" solar flare on Feb. 15\(^{\rm{th}}\), 2011 in the prototype "Testbed" station. We find \(\sim2000\) events that passed our neutrino search criteria during the 70 minute period of the flare, all of which reconstruct to the location of the sun. A signal analysis of the events reveals them to be consistent with that of bright thermal noise correlated across antennas. This is the first natural source of radio emission reported by ARA that is tightly reconstructable on an event-by-event basis. The observation is also the first for ARA to point radio from individual events to an extraterrestrial source on the sky. We comment on how the solar flares, coupled with improved systematic uncertainties in reconstruction algorithms, could aid in a mapping of any above-ice radio emission, such as that from cosmic-ray air showers, to astronomical locations on the sky.
ISSN:2331-8422