Milagro as a solar observatory

Abe Falcone, James Ryan

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The Milagro Gamma Ray Observatory, a ground-based water Čherenkov detector designed primarily for observing very high energy gamma ray sources, can also be used to study the Sun. Measurements of high energy emission from solar flares can lead to an understanding of the solar energetic particle acceleration mechanism(s), and Milagro, with enhanced data acquisition electronics, will measure solar cosmic rays in the poorly studied energy range from 10 to 300 GeV. Monte Carlo simulations show that proton and neutron solar cosmic rays at these energies will be detectable at the ground level through the single muons and/or mini showers they produce. Milagro can detect these events in a scaler counting mode similar to that of a neutron monitor. Additionally, it can operate in a telescope mode that reduces background by pointing at the source region. We also report a preliminary detection, using the Milagro prototype, Milagrito, of a ground level event (GLE) on 6 November 1997 associated with an X-class solar flare.

Original languageEnglish (US)
Pages (from-to)283-285
Number of pages3
JournalAstroparticle Physics
Volume11
Issue number1-2
DOIs
StatePublished - Jun 1999

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solar observatories
solar cosmic rays
solar flares
scalers
Gamma Ray Observatory
neutrons
energy
particle acceleration
energetic particles
showers
data acquisition
monitors
muons
counting
prototypes
telescopes
protons
detectors
electronics
water

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics

Cite this

Falcone, Abe ; Ryan, James. / Milagro as a solar observatory. In: Astroparticle Physics. 1999 ; Vol. 11, No. 1-2. pp. 283-285.
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Milagro as a solar observatory. / Falcone, Abe; Ryan, James.

In: Astroparticle Physics, Vol. 11, No. 1-2, 06.1999, p. 283-285.

Research output: Contribution to journalArticle

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