Impulsive Increase of Galactic Cosmic Ray Flux Observed by IceTop

Slides:

Advertisements

Similar presentations

Anisotropy in Cosmic Ray Arrival Directions Using IceCube and IceTop Frank McNally ISCRA.

Advertisements

ELENA VANNUCCINI ON BEHALF OF PAMELA COLLABORATION Measurement of the Hydrogen and Helium absolute fluxes with the PAMELA experiment.

High-energy particle acceleration in the shell of a supernova remnant F.A. Aharonian et al (the HESS Collaboration) Nature 432, 75 (2004) Nuclear Physics.

Paul Evenson, Waraporn Nuntiyakul,

TeVPA, July , SLAC 1 Cosmic rays at the knee and above with IceTop and IceCube Serap Tilav for The IceCube Collaboration South Pole 4 Feb 2009.

Searching for Small-Scale Anisotropies in the Arrival Directions of Ultra-High Energy Cosmic Rays with the Information Dimension Eli Visbal (Carnegie Mellon.

George W.S. Hou & M.A. Huang Center for Cosmology and Particle Astrophysics Department of Physics, National Taiwan University, 1, Sec. 4, Roosevelt Rd.,Taipei,

SHINE 2008 June, 2008 Utah, USA Visit our Websites:

Chungnam National University October 22, 2013 Solar Physics with IceTop or How I Learned to Stop Worrying and Love the South Pole Paul Evenson University.

Alexander Kappes UW-Madison 4 th TeVPA Workshop, Beijing (China) Sep. 24 – 28, 2008 The Hunt for the Sources of the Galactic Cosmic Rays — A multi-messenger.

SHINE Meeting, July 31 – August 4, 2006 Neutron Monitor Observations of the January 20, 2005 Ground Level Enhancement John W. Bieber 1, John Clem 1, Paul.

Spring 2004 AGU Meeting, Montreal SH33A-02 UNUSUAL FEATURES OF THE OCTOBER 28, 2003 GROUND LEVEL ENHANCEMENT John W. Bieber 1, Paul Evenson 1, Roger Pyle.

Ground Level Enhancement of May 17, 2012 Observed at South Pole SH21A-2183 Takao Kuwabara 1,3 ; John Bieber 1 ; John Clem 1,3 ; Paul Evenson 1,3 ; Tom.

Cosmic Rays in the Heliosphere J. R. Jokipii University of Arizona I acknowledge helpful discussions with J. Kόta and J. GIacalone. Presented at the TeV.

The PLANETOCOSMICS Geant4 application L. Desorgher Physikalisches Institut, University of Bern.

SNS neutron background measurements using a portable 3 He LPSD detector.

Paul Evenson June CAU Kiel April 20, 2010 Solar Physics with the IceTop Air Shower Array Paul Evenson University of Delaware Department of Physics.

Uppsala University June 9, 2009

March 02, Shahid Hussain for the ICECUBE collaboration University of Delaware, USA.

Chiang Mai University July 27, 2011 Solar Physics with IceTop or How I Learned to Stop Worrying and Love the South Pole Paul Evenson University of Delaware.

1 Cosmic Rays in IceCube: Composition-Sensitive Observables Chihwa Song a, Peter Niessen b, Katherine Rawlins c for the IceCube collaboration a University.

Andrii Neronov JEM-EUSOJEM-EUSO. Problem of the origin of cosmic rays Galactic Extragalactic?

The IceCube Neutrino Observatory is a cubic kilometer detector at the geographic South Pole. We give an overview of searches for time-variable neutrino.

Measurement of the atmospheric lepton energy spectra with AMANDA-II presented by Jan Lünemann* for Kirsten Münich* for the IceCube collaboration * University.

Atmospheric Variations as observed by IceCube HE Serap Tilav 1, Paolo Desiati 2, Takao Kuwabara 1, Dominick Rocco 2, Florian Rothmaier 3, Matt.

APRIM Chiang Mai July 28, 2011 Heliospheric Physics with IceTop Paul Evenson University of Delaware Department of Physics and Astronomy.

Study of the Atmospheric Muon and Neutrinos for the IceCube Observatory Ryan Birdsall Paolo Desiati, Patrick Berghaus,

Northern sky Galactic Cosmic Ray anisotropy between TeV with the Tibet Air Shower Array Zhaoyang Feng Institute of High Energy Physics, CAS, China.

PHY418 Particle Astrophysics

Athens University – Faculty of Physics Section of Nuclear and Particle Physics Athens Neutron Monitor Station Study of the ground level enhancement of.

5 June 2002DAQ System Engineering Requirements 1 DAQ System Requirements DOM Main Board Engineering Requirements Review David Nygren.

Shinshu University August 4, 2014 Solar Energetic Particle Spectra and Composition from IceTop and South Pole Neutron Monitors or How I Learned to Stop.

Physical Description of IceTop 3 Nov IceTop Internal Review Madison, November 3-4, 2010 Physical Description of IceTop Paul Evenson, University.

February 7, Long Term Decline of South Pole Neutron Monitor Counting Rate – A Possible Magnetospheric Interpretation Paul Evenson, John Bieber,

1 Cosmic Ray Modulation Over the 22 Year Magnetic Cycle Observed by Neutron Monitors Pierre-Simon Mangeard 1,2, David Ruffolo 2,3, Alejandro Sáiz 2,3,

Workshop on AstroParticle Physics, WAPP 2009 Bose Institute, Darjeeling, December 2009 Extensive Air Showers and Astroparticle Physics Observations and.

South Pole Astro April 4, 2011 Tom Gaisser1 125 m Cosmic-ray physics with IceCube IceTop is the surface component of IceCube as a three-dimensional cosmic-ray.

1 Cosmic Ray Physics with IceTop and IceCube Serap Tilav University of Delaware for The IceCube Collaboration ISVHECRI2010 June 28 - July 2, 2010 Fermilab.

Bergische Universität Wuppertal Jan Auffenberg et al. Rome, Arena ARENA 2008 A radio air shower detector to extend IceCube ● Three component air.

The Real-Time Neutron Monitor Database Christian T. Steigies (2), Karl-Ludwig Klein & Nicolas Fuller (1), on behalf of the NMDB team (1) Christian-Albrechts.

The IceCube Neutrino Observatory is a cubic kilometer detector currently under construction at the geographic South Pole. We will give an overview of searches.

Cosmogenic Muon Background

Imaging the Neutrino Universe with AMANDA and IceCube

Paul Evenson University of Delaware

Observation of cosmogenic nuclide Be-7 concentrations in the air at Bangkok and trajectory analysis of global air-mass motion S. Suzuki , H. Sakurai ,

Paul Evenson University of Delaware

Flux Limits for Ultra-High Energy Neutrinos

completed in austral season South Pole completed in austral season.

IceCube: Multiwavelength Approach to

Direct Measurement of the Atmospheric Muon Spectrum with IceCube

Search for Cosmic Ray Anisotropy with the Alpha Magnetic Spectrometer on the International Space Station G. LA VACCA University of Milano-Bicocca.

Pradiphat (ฝุ่น) Muangha2 David J Ruffolo2

Presenter: Paul Evenson

Observation of Pulsars and Plerions with MAGIC

Early Alert of Solar Radiation Hazard

Development of a GLE Alarm System Based Upon Neutron Monitors

Theoretical status of high energy cosmic rays and neutrinos

Pierre Auger Observatory Present and Future

Simulations of Lateral Transport and Dropout Structure of Energetic Particles from Impulsive Solar Flares Paisan Tooprakai1, Achara Seripienlert2, David.

Results on the Spectrum and Composition of Cosmic Rays

John Kelley for the IceCube Collaboration

Gamma-ray Albedo of the Moon Igor V. Moskalenko (Stanford) & Troy A

Building ICECUBE A Neutrino Telescope at the South Pole

Comparison Of High Energy Hadronic Interaction Models

Comparison Of High Energy Hadronic Interaction Models

Karen Andeena, Katherine Rawlinsb, Chihwa Song*a

Cosmic Ray Electron Spectrum in 2009

ICRC2003 OG Calculation of Cosmic-Ray Proton and Anti-proton Spatial Distribution in Magnetosphere Michio Fuki, Ayako Kuwahara, Nozomi, Sawada Faculty.

The spectral evolution of impulsive solar X-ray flares

Studies and results at Pierre Auger Observatory

Presentation transcript:

Impulsive Increase of Galactic Cosmic Ray Flux Observed by IceTop The IceCube Collaboration†, Pierre-Simon Mangeard‡, Pradiphat (ฝุ่น) Muangha♯, Roger Pyle♮, David Ruffolo♯ and Alejandro Sáiz♯ Corresponding Author: Paul Evenson‡ † http://icecube.wisc.edu/collaboration/authors/icrc17_icecube ‡ University of Delaware, Newark, DE 19716, USA ♯ Mahidol University, Bangkok 10400, Thailand ♮ Pyle Consulting Group, St. Charles, IL 60174, USA

Paul Evenson ICRC

IceCube and IceTop IceCube uses a large volume (one cubic kilometer) of ice at the South Pole to detect rare neutrino interactions. The Delaware contribution to IceCube is IceTop, the air shower array on the surface. Paul Evenson AGU

Why IceTop Works as a GeV Particle Spectrometer Diffusely reflecting liner IceTop “tanks” are thick (90 g/cm2) blocks of clear ice. Cherenkov light output is a function of both species and energy of incoming particles 4

Particle Response Functions (Arbitrary Normalization) IceTop particle response functions change with counting discriminator threshold. Simple count rates from IceTop, above different discriminator thresholds, yield multiple response functions simultaneously. A neutron monitor has only a single response function. Paul Evenson ICRC

2017January 18 Pulse Event IceTop and some nearby neutron monitors saw a pulse-like increase in cosmic ray fluxes. Better statistical precision and spectral response of IceTop show that it is not a solar energetic particle event. Paul Evenson ICRC

Similar Event on 2015 June 22 The IceTop event is similar to the event seen by GRAPES-3 on 2015 June 22 (Mohanty et al. PRL 117, 171101, 2016) Paul Evenson ICRC

No Pulse at IceTop on 2015 June 22 The lack of a pulse at IceTop is consistent with the interpretation of the GRAPES-3 event as a brief decrease in geomagnetic cutoff, but … Paul Evenson ICRC

2017January 18 Pulse Event … this event could not be a lowering of cutoff – it is already zero here! It must be the result of a transient anisotropy. Paul Evenson ICRC

Reconsider 2015 June 22 Examine whether this event is more probably a cutoff variation or a transient anisotropy as well. Paul Evenson ICRC

Neutron monitors show a definite pattern 2015 June 22 Neutron monitors show a definite pattern Paul Evenson ICRC

Pulse appearance is ordered by geographic location 2015 June 22 Pulse appearance is ordered by geographic location Paul Evenson AGU

Tsyganenko Model Cutoff Decrease Calculations Even with an extrapolation to Kp=8 it is unlikely that changes in cutoff can be local effects. They must almost certainly be global. Paul Evenson ICRC

Conclusions Both the 2017 January 18 and 2015 June 22 events are most likely due to transient anisotropy. Detailed analysis of possible 2015 June 22 asymptotic direction variations is difficult because of the highly disturbed magnetosphere. Paul Evenson AGU