The High-Energy Gamma-Ray Fluence and Energy Spectrum of GRB 970417a from Observations with Milagrito

R. Atkins¹, W. Benbow², D. Berley^3,4, M. L. Chen^3,5, D. G. Coyne², B. L. Dingus¹, D. E. Dorfan², R. W. Ellsworth⁶, D. Evans³, A. Falcone^7,8, L. Fleysher⁹, R. Fleysher⁹, G. Gisler¹⁰, M. M. Gonzalez¹, J. A. Goodman³, T. J. Haines¹⁰, C. M. Hoffman¹⁰, S. Hugenberger¹¹, L. A. Kelley², S. Klein^2,12, I. Leonor^4,13, J. F. McCullough^2,14, J. E. McEnery¹, R. S. Miller^7,10, A. I. Mincer⁹, M. F. Morales², P. Nemethy⁹, J. M. Ryan⁷, F. W. Samuelson¹⁰, B. Shen¹⁵, A. Shoup¹¹, C. Sinnis¹⁰, A. J. Smith^3,15, G. W. Sullivan³, T. Tumer¹⁵, K. Wang^15,16, M. O. Wascko^15,17, S. Westerhoff^2,18, D. A. Williams², T. Yang², and G. B. Yodh¹¹

© 2003. The American Astronomical Society. All rights reserved. Printed in U.S.A.
The Astrophysical Journal, Volume 583, Number 2 Citation R. Atkins et al 2003 ApJ 583 824 DOI 10.1086/345499

Download Article PDF View article

Article metrics

614 Total downloads
Video abstract views

Permissions

Get permission to re-use this article

Author affiliations

¹ University of Wisconsin, Madison, WI 53706

² University of California, Santa Cruz, CA 95064

³ University of Maryland, College Park, MD 20742

⁴ Current address: National Science Foundation, Arlington, VA 22230

⁵ Current address: Oak Ridge National Laboratory, Oak Ridge, TN 37831-6203

⁶ George Mason University, Fairfax, VA 22030

⁷ University of New Hampshire, Durham, NH 03824

⁸ Current address: Purdue University, West Lafayette, IN 47907

⁹ New York University, New York, NY 10003

¹⁰ Los Alamos National Laboratory, Los Alamos, NM 87545

¹¹ University of California, Irvine, CA 92697

¹² Current address: Lawrence Berkeley National Laboratory, Berkeley, CA 94720

¹³ Current address: University of Oregon, Eugene, OR 97403

¹⁴ Current address: Cabrillo College, Aptos, CA 95003

¹⁵ University of California, Riverside, CA 92521

¹⁶ Current address: Armillaire Technologies, Bethesda, MD 20817

¹⁷ Current address: Louisiana State University, Baton Rouge, LA 70803

¹⁸ Current address: Columbia University, New York, NY 10027

Dates

Received 2002 June 20
Accepted 2002 October 10

Journal RSS

Create or edit your corridor alerts

What are corridors?

Abstract

Evidence of TeV emission from GRB 970417a has been previously reported using data from the Milagrito detector. Constraints on the TeV fluence and the energy spectrum are now derived using additional data from a scaler system that recorded the rate of signals from the Milagrito photomultipliers. This analysis shows that if emission from GRB 970417a has been observed, it must contain photons with energies above 650 GeV. Some consequences of this observation are discussed.

Export citation and abstract BibTeX RIS

Previous article in issue

Next article in issue

Please wait… references are loading.