A Survey of the Northern Sky for TeV PointSources

K. Wang; R. Atkins; W. Benbow; D. Berley; M.-L. Chen; D. G. Coyne; B. L. Dingus; D. E. Dorfan; R. W. Ellsworth; A. Falcone; L. Fleysher; R. Fleysher; G. Gisler; J. A. Goodman; T. J. Haines; C. M. Hoffman; S. Hugenberger; L. A. Kelley; I. Leonor; M. McConnell; J. F. McCullough; J. E. McEnery; R. S. Miller; A. I. Mincer; M. F. Morales; P. Nemethy; J. M. Ryan; F. W. Samuelson; B. Shen; A. Shoup; G. Sinnis; A. J. Smith; G. W. Sullivan; O. T. Tumer; M. O. Wascko; S. Westerhoff; D. A. Williams; T. Yang; G. B. Yodh; (The Milagro Collaboration)

doi:10.1086/322312

A Survey of the Northern Sky for TeV Point Sources

K. Wang^1,2, R. Atkins³, W. Benbow⁴, D. Berley⁵, M.-L. Chen^5,6, D. G. Coyne⁴, B. L. Dingus³, D. E. Dorfan⁴, R. W. Ellsworth⁷, A. Falcone⁸, L. Fleysher⁹, R. Fleysher⁹, G. Gisler¹⁰, J. A. Goodman⁵, T. J. Haines¹⁰, C. M. Hoffman¹⁰, S. Hugenberger¹¹, L. A. Kelley⁴, I. Leonor¹¹, M. McConnell⁸, J. F. McCullough⁴, J. E. McEnery³, R. S. Miller^10,12, A. I. Mincer⁹, M. F. Morales⁴, P. Nemethy⁹, J. M. Ryan⁸, F. W. Samuelson¹⁰, B. Shen¹, A. Shoup¹¹, G. Sinnis¹⁰, A. J. Smith⁵, G. W. Sullivan⁵, O. T. Tumer¹, M. O. Wascko^1,13, S. Westerhoff^4,14, D. A. Williams⁴, T. Yang⁴, G. B. Yodh¹¹, and (The Milagro Collaboration)

© 2001. The American Astronomical Society. All rights reserved. Printed in U.S.A.
The Astrophysical Journal, Volume 558, Number 2 Citation K. Wang et al 2001 ApJ 558 477 DOI 10.1086/322312

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Author affiliations

¹ Department of Physics, University of California, Riverside, CA 92521

² Now at Amillaire Technologies, Inc., Bethesda, MD 20817

³ Physics Department, University of Wisconsin, Madison, WI 53706

⁴ Physics Department, University of California, Santa Cruz, CA 95064

⁵ Department of Physics, University of Maryland, College Park, MD 20742

⁶ Physics Department, Brookhaven National Laboratory, Upton, NY 11973

⁷ Department of Physics, George Mason University, Fairfax, VA 22030

⁸ Department of Physics, University of New Hampshire, Durham, NH 03824

⁹ Department of Physics, New York University, New York, NY 10003

¹⁰ Physics Division and Nonproliferation and International Security Division, Los Alamos National Laboratory, Los Alamos, NM 87544

¹¹ Department of Physics and Astronomy, University of California, Irvine, CA 92697

¹² Now at Department of Physics, University of New Hampshire, Durham, NH 03824

¹³ Now at Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803

¹⁴ Now at Department of Physics, Columbia University, New York, NY 10027

Dates

Received 2001 March 20
Accepted 2001 May 15

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Abstract

A search for steady TeV point sources anywhere in the northern sky has been made with data from the Milagrito air-shower particle detector. Over 3 × 10⁹ events, collected from 1997 February to 1998 May, have been used in this study. No statistically significant excess above the background from the isotropic flux of cosmic rays was found for any direction of the sky with declination between -5° and 71 fdg 7. Upper limits are derived for the photon flux above 1 TeV from any steady point source in the northern sky.

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