FORTE satellite constraints on ultra-high energy cosmic particle fluxes
The FORTE (Fast On-orbit Recording of Transient Events) satellite records bursts of electromagnetic waves arising from near the Earth's surface in the radio frequency (RF) range of 30 to 300 MHz with a dual polarization antenna. We investigate the possible RF signature of ultra-high energy cosm...
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ftcern:oai:cds.cern.ch:644604 2023-05-15T16:29:21+02:00 FORTE satellite constraints on ultra-high energy cosmic particle fluxes Lehtinen, N G Gorham, P W Jacobson, A R Roussel-Dupre, R A 2003-09-24 http://cds.cern.ch/record/644604 eng eng http://cds.cern.ch/record/644604 astro-ph/0309656 oai:cds.cern.ch:644604 Astrophysics and Astronomy 2003 ftcern 2018-07-28T06:08:41Z The FORTE (Fast On-orbit Recording of Transient Events) satellite records bursts of electromagnetic waves arising from near the Earth's surface in the radio frequency (RF) range of 30 to 300 MHz with a dual polarization antenna. We investigate the possible RF signature of ultra-high energy cosmic-ray particles in the form of coherent Cherenkov radiation from cascades in ice. We calculate the sensitivity of the FORTE satellite to ultra-high energy (UHE) neutrino fluxes at different energies beyond the Greisen-Zatsepin-Kuzmin (GZK) cutoff. Some constraints on supersymmetry model parameters are also estimated due to the limits that FORTE sets on the UHE neutralino flux. The FORTE database consists of over 4 million recorded events to date, including in principle some events associated with UHE neutrinos. We search for candidate FORTE events in the period from September 1997 to December 1999. The candidate production mechanism is via coherent VHF radiation from a UHE neutrino shower in the Greenland ice sheet. We demonstrate a high efficiency for selection against lightning and anthropogenic backgrounds. A single candidate out of several thousand raw triggers survives all cuts, and we set limits on the corresponding particle fluxes assuming this event represents our background level. Other/Unknown Material Greenland Ice Sheet CERN Document Server (CDS) Greenland |
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Astrophysics and Astronomy |
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Astrophysics and Astronomy Lehtinen, N G Gorham, P W Jacobson, A R Roussel-Dupre, R A FORTE satellite constraints on ultra-high energy cosmic particle fluxes |
topic_facet |
Astrophysics and Astronomy |
description |
The FORTE (Fast On-orbit Recording of Transient Events) satellite records bursts of electromagnetic waves arising from near the Earth's surface in the radio frequency (RF) range of 30 to 300 MHz with a dual polarization antenna. We investigate the possible RF signature of ultra-high energy cosmic-ray particles in the form of coherent Cherenkov radiation from cascades in ice. We calculate the sensitivity of the FORTE satellite to ultra-high energy (UHE) neutrino fluxes at different energies beyond the Greisen-Zatsepin-Kuzmin (GZK) cutoff. Some constraints on supersymmetry model parameters are also estimated due to the limits that FORTE sets on the UHE neutralino flux. The FORTE database consists of over 4 million recorded events to date, including in principle some events associated with UHE neutrinos. We search for candidate FORTE events in the period from September 1997 to December 1999. The candidate production mechanism is via coherent VHF radiation from a UHE neutrino shower in the Greenland ice sheet. We demonstrate a high efficiency for selection against lightning and anthropogenic backgrounds. A single candidate out of several thousand raw triggers survives all cuts, and we set limits on the corresponding particle fluxes assuming this event represents our background level. |
author |
Lehtinen, N G Gorham, P W Jacobson, A R Roussel-Dupre, R A |
author_facet |
Lehtinen, N G Gorham, P W Jacobson, A R Roussel-Dupre, R A |
author_sort |
Lehtinen, N G |
title |
FORTE satellite constraints on ultra-high energy cosmic particle fluxes |
title_short |
FORTE satellite constraints on ultra-high energy cosmic particle fluxes |
title_full |
FORTE satellite constraints on ultra-high energy cosmic particle fluxes |
title_fullStr |
FORTE satellite constraints on ultra-high energy cosmic particle fluxes |
title_full_unstemmed |
FORTE satellite constraints on ultra-high energy cosmic particle fluxes |
title_sort |
forte satellite constraints on ultra-high energy cosmic particle fluxes |
publishDate |
2003 |
url |
http://cds.cern.ch/record/644604 |
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Greenland |
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Greenland |
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Greenland Ice Sheet |
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Greenland Ice Sheet |
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http://cds.cern.ch/record/644604 astro-ph/0309656 oai:cds.cern.ch:644604 |
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1766019053534576640 |