PowerPoint Presentation Title Slide

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Title
Searching for High Energy Muonic Neutrinos from
Gamma-Ray Bursts Using AMANDA
A.J. Carver University of Wisconsin
Madison Advisors Prof. Bob Morse Mike
Stamatikos August 7, 2003 acarver_at_wisc.edu
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New Window
Neutrinos - A New Window On Astronomy
The 21st Century will feature Neutrino Astronomy
with AMANDA/IceCube!
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Significance
Discovering High Energy Muonic Neutrinos from
GRBs would be VERY SIGNIFICANT

• Confirm hadron acceleration in the relativistic
  GRB wind
• Validate the FIREBALL MODEL phenomenology
• Provide an acceleration mechanism for the
  highest energy cosmic rays
• We hope to make this discovery

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GRB Discovery
Gamma-Ray Bursts (GRBs) The Past 30 yrs

• Discovered in 1969 by Vela nuclear test
  detection satellites (Klebesadal, et al., 1973)

• Bursts of Gamma-Rays NOT from Sun or Earth
• Little more learned because of little
  observational data

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GRB Questions
Gamma-Ray Bursts (GRBs) Questions

• Where on the sky do GRBs occur?
• Are all GRBs the same?
• How far away are GRBs?
• What causes GRBs?
• More observations needed

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Isotropic
Gamma-Ray Bursts (GRBs) QA

• Where on the sky do GRBs occur?

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Unique
Gamma-Ray Bursts (GRBs) QA

• Are all GRBs the same?

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Cosmological
Gamma-Ray Bursts (GRBs) QA

• How far away are GRBs?

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GRBv Connection
GRBs Neutrinos The Connection
Coincident Search Neutrinos Coincident with
Photons
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AMANDA
Neutrino Detection
AMANDA Antarctic Muon And Neutrino Detector
Array

• Neutrino Telescope
• Located at South Pole
• Uses PMTs to detect Cherenkov radiation created
  by fast moving particles
• We are interested in up-going events

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Past
Past Analysis

• Searched for neutrinos from GRBs detected by
  BATSE between 1997 and 2000 data
• Used generic neutrino spectrum

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Past
Past Analysis

• Produced a framework and tools for future GRB
  analyses
• Detector stability data integrity
• Background minimization (cuts)

NO GRB neutrinos coincidence detected results
in 2003 International Cosmic Ray Conference
(ICRC) proceedings
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Present
Present Analysis

• Models the neutrino spectrum on a per burst
  basis (based on Guetta et al. 2003
  astro-ph0302524)
• Determines per burst neutrino event rates
• Extends analysis to 2003
• Creating user-friendly and flexible
  infrastructure

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Catalog Comparison 1
GRB Catalog Comparisons
The Stern catalog overlaps 96 of Kommers and
94 of Schmidt (GUSBAD) catalogs.
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T90 Distribution
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Sky Plot
96 BATSE (triggered) bursts and 9 Stern
(non-triggered) bursts passed the selection
criteria
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Dec Distribution
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BATSE Errors
Discovery of Errors in current BATSE Catalog

• BATSE trigger 7644 solar flare, NOT A GRB
• BATSE triggers 2463 and 2464 SGRs, NOT GRBs
• 8 more triggers will be reclassified for the
  upcoming 5B catalog
• Many order problems in 4B Current Cmax/Cmin
  Catalog
• Being corrected by BATSE team
• Demonstration of thoroughness

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IPN3
K. Hurley, http//ssl.berkeley.edu/ipn3/

• Group of satellites capable on Gamma ray
  detection
• Bridge between BATSE Swift
• 24 member instruments as of 5/22/03
• Major endeavor
• 16 eliminated
• 3 still under investigation
• 5 accepted
• Comparisons have begun

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Future
Future Analysis

• Methods developed now will allow for speedier
  analysis of future data
• A dedicated GRB
  satellite 200 bursts/yr

ICECUBE Kilometer cubed neutrino telescope
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Conclusion
Conclusions

• Neutrino Astronomy New Window on the Universe
• Neutrino Production - Consequence of Fireball
  Phenomenology of GRBs
• GRB Neutrino Coincidence Significant Discovery
• Comprehensive Comparisons - BATSE 3
  non-triggered catalogs
• Generating IPN3 catalog Welcomed by GRB
  community
• Analysis Evolution
• EXCITING FUTURE

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Thank You
Thank You
Mike Stamatikos, Bob Morse, Rellen Hardtke,
Francis Halzen, Cary Forest, Paolo Desiati, Kath
Rawlins, Brennan Hughey, Jodi Cooley, Bill
Santner, Anupam Singh, Newt Ganugapati, Gary
Hill, Albrecht Karle, Annie Malkus, more
AMANDROIDS (Chris, Jessica, Dave, Kael), Bob
Benjamin, Greg Madsen, Ron Reynolds, Aaron
Steffen, Ken Nordsieck, TonyWeitenbeck, the REU
students Eric, Stephanie, Kiwi, Jeremy, Amanda,
Karl, Tommy, Sam, Luis, Kimb, Quennie, Kelen,
Luisa, and Marleen
Without each of your influences, assistance,
confidence, guidance, patience, empathy, support,
and humor this research and my summer would not
have been nearly as great. I am deeply grateful.
Thank you!
My apologies if I overlooked someone in preparing
this slide
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Contact Info
To learn more about Searching for High Energy
Muonic Neutrinos from Gamma-Ray Bursts Using
AMANDA contact
A.J. Carver - acarver_at_wisc.edu Or visit online
at http//wisp.physics.wisc.edu/reu2003/carver