Recent results from the Milagro gamma ray observatory

J. A. Goodman, R. Atkins, W. Benbow, D. Berley, E. Blaufuss, D. G. Coyne, T. DeYoung, B. L. Dingus, D. E. Dorfan, R. W. Ellsworth, L. Fleysher, Roman Fleysher, M. M. Gonzalez, J. A. Goodman, T. J. Haines, E. Hays, C. M. Hoffman, L. A. Kelley, C. P. Lansdell, J. T. Linnemann & 13 others J. E. McEnery, R. S. Miller, A. I. Mincer, M. F. Morales, P. Nemethy, D. Noyes, J. M. Ryan, F. W. Samuelson, P. M. Saz Parkinson, A. Shoup, G. Sinnis, A. J. Smith, G. W. Sullivan

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The Milagro gamma-ray observatory utilizes a large water Cherenkov detector to observe TeV extensive air showers produced by high energy particles impacting the Earth's atmosphere. Milagro is different from Atmospheric Cherenkov Telescopes that are used to study TeV gamma-rays in that it views a wide field (2 steradian over-head sky) and it continuously operates (>90% live time). These factors give Milagro the potential for discovery of new sources with unknown positions and times, such as gamma-ray bursts, flaring AGN, and observation of diffuse extended sources like the Galactic plane or large supernova remnants. The Milagro detector consists of a 4800 m2 pond instrumented with 723 8" PMTs which detect Cherenkov light produced by secondary air-shower particles. A sparse array of 175 4000l water tanks surrounding the central pond detector has recently been added which will extend the physical area of Milagro to 40,000 m2 and substantially increase the sensitivity of the instrument. Based on three years of operation, Milagro has established its sensitivity through the detection of the Crab plerion and active galaxy Markarian 421. A summary of the recent results from the Milagro collaboration is presented with a focus on the first observation of the galactic plane in the TeV range and evidence for two newly observed TeV sources: diffuse emission from the Cygnus Region, and evidence for an extended TeV hot spot near the EGRET unidentified 3EG J0520+2556.

Original languageEnglish (US)
Pages (from-to)101-107
Number of pages7
JournalNuclear Physics B - Proceedings Supplements
Volume151
Issue number1
DOIs
StatePublished - Jan 2006
Externally publishedYes

Fingerprint

Gamma Ray Observatory
cosmic ray showers
detectors
active galaxies
crabs
sensitivity
Earth atmosphere
supernova remnants
particle energy
gamma ray bursts
water
sky
gamma rays
telescopes
galaxies

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Goodman, J. A., Atkins, R., Benbow, W., Berley, D., Blaufuss, E., Coyne, D. G., ... Sullivan, G. W. (2006). Recent results from the Milagro gamma ray observatory. Nuclear Physics B - Proceedings Supplements, 151(1), 101-107. https://doi.org/10.1016/j.nuclphysbps.2005.07.018

Recent results from the Milagro gamma ray observatory. / Goodman, J. A.; Atkins, R.; Benbow, W.; Berley, D.; Blaufuss, E.; Coyne, D. G.; DeYoung, T.; Dingus, B. L.; Dorfan, D. E.; Ellsworth, R. W.; Fleysher, L.; Fleysher, Roman; Gonzalez, M. M.; Goodman, J. A.; Haines, T. J.; Hays, E.; Hoffman, C. M.; Kelley, L. A.; Lansdell, C. P.; Linnemann, J. T.; McEnery, J. E.; Miller, R. S.; Mincer, A. I.; Morales, M. F.; Nemethy, P.; Noyes, D.; Ryan, J. M.; Samuelson, F. W.; Saz Parkinson, P. M.; Shoup, A.; Sinnis, G.; Smith, A. J.; Sullivan, G. W.

In: Nuclear Physics B - Proceedings Supplements, Vol. 151, No. 1, 01.2006, p. 101-107.

Research output: Contribution to journalArticle

Goodman, JA, Atkins, R, Benbow, W, Berley, D, Blaufuss, E, Coyne, DG, DeYoung, T, Dingus, BL, Dorfan, DE, Ellsworth, RW, Fleysher, L, Fleysher, R, Gonzalez, MM, Goodman, JA, Haines, TJ, Hays, E, Hoffman, CM, Kelley, LA, Lansdell, CP, Linnemann, JT, McEnery, JE, Miller, RS, Mincer, AI, Morales, MF, Nemethy, P, Noyes, D, Ryan, JM, Samuelson, FW, Saz Parkinson, PM, Shoup, A, Sinnis, G, Smith, AJ & Sullivan, GW 2006, 'Recent results from the Milagro gamma ray observatory', Nuclear Physics B - Proceedings Supplements, vol. 151, no. 1, pp. 101-107. https://doi.org/10.1016/j.nuclphysbps.2005.07.018
Goodman JA, Atkins R, Benbow W, Berley D, Blaufuss E, Coyne DG et al. Recent results from the Milagro gamma ray observatory. Nuclear Physics B - Proceedings Supplements. 2006 Jan;151(1):101-107. https://doi.org/10.1016/j.nuclphysbps.2005.07.018
Goodman, J. A. ; Atkins, R. ; Benbow, W. ; Berley, D. ; Blaufuss, E. ; Coyne, D. G. ; DeYoung, T. ; Dingus, B. L. ; Dorfan, D. E. ; Ellsworth, R. W. ; Fleysher, L. ; Fleysher, Roman ; Gonzalez, M. M. ; Goodman, J. A. ; Haines, T. J. ; Hays, E. ; Hoffman, C. M. ; Kelley, L. A. ; Lansdell, C. P. ; Linnemann, J. T. ; McEnery, J. E. ; Miller, R. S. ; Mincer, A. I. ; Morales, M. F. ; Nemethy, P. ; Noyes, D. ; Ryan, J. M. ; Samuelson, F. W. ; Saz Parkinson, P. M. ; Shoup, A. ; Sinnis, G. ; Smith, A. J. ; Sullivan, G. W. / Recent results from the Milagro gamma ray observatory. In: Nuclear Physics B - Proceedings Supplements. 2006 ; Vol. 151, No. 1. pp. 101-107.
@article{c34982dd1f7b4494bd7775bc41a353fe,
title = "Recent results from the Milagro gamma ray observatory",
abstract = "The Milagro gamma-ray observatory utilizes a large water Cherenkov detector to observe TeV extensive air showers produced by high energy particles impacting the Earth's atmosphere. Milagro is different from Atmospheric Cherenkov Telescopes that are used to study TeV gamma-rays in that it views a wide field (2 steradian over-head sky) and it continuously operates (>90{\%} live time). These factors give Milagro the potential for discovery of new sources with unknown positions and times, such as gamma-ray bursts, flaring AGN, and observation of diffuse extended sources like the Galactic plane or large supernova remnants. The Milagro detector consists of a 4800 m2 pond instrumented with 723 8{"} PMTs which detect Cherenkov light produced by secondary air-shower particles. A sparse array of 175 4000l water tanks surrounding the central pond detector has recently been added which will extend the physical area of Milagro to 40,000 m2 and substantially increase the sensitivity of the instrument. Based on three years of operation, Milagro has established its sensitivity through the detection of the Crab plerion and active galaxy Markarian 421. A summary of the recent results from the Milagro collaboration is presented with a focus on the first observation of the galactic plane in the TeV range and evidence for two newly observed TeV sources: diffuse emission from the Cygnus Region, and evidence for an extended TeV hot spot near the EGRET unidentified 3EG J0520+2556.",
author = "Goodman, {J. A.} and R. Atkins and W. Benbow and D. Berley and E. Blaufuss and Coyne, {D. G.} and T. DeYoung and Dingus, {B. L.} and Dorfan, {D. E.} and Ellsworth, {R. W.} and L. Fleysher and Roman Fleysher and Gonzalez, {M. M.} and Goodman, {J. A.} and Haines, {T. J.} and E. Hays and Hoffman, {C. M.} and Kelley, {L. A.} and Lansdell, {C. P.} and Linnemann, {J. T.} and McEnery, {J. E.} and Miller, {R. S.} and Mincer, {A. I.} and Morales, {M. F.} and P. Nemethy and D. Noyes and Ryan, {J. M.} and Samuelson, {F. W.} and {Saz Parkinson}, {P. M.} and A. Shoup and G. Sinnis and Smith, {A. J.} and Sullivan, {G. W.}",
year = "2006",
month = "1",
doi = "10.1016/j.nuclphysbps.2005.07.018",
language = "English (US)",
volume = "151",
pages = "101--107",
journal = "Nuclear and Particle Physics Proceedings",
issn = "2405-6014",
publisher = "Elsevier",
number = "1",

}

TY - JOUR

T1 - Recent results from the Milagro gamma ray observatory

AU - Goodman, J. A.

AU - Atkins, R.

AU - Benbow, W.

AU - Berley, D.

AU - Blaufuss, E.

AU - Coyne, D. G.

AU - DeYoung, T.

AU - Dingus, B. L.

AU - Dorfan, D. E.

AU - Ellsworth, R. W.

AU - Fleysher, L.

AU - Fleysher, Roman

AU - Gonzalez, M. M.

AU - Goodman, J. A.

AU - Haines, T. J.

AU - Hays, E.

AU - Hoffman, C. M.

AU - Kelley, L. A.

AU - Lansdell, C. P.

AU - Linnemann, J. T.

AU - McEnery, J. E.

AU - Miller, R. S.

AU - Mincer, A. I.

AU - Morales, M. F.

AU - Nemethy, P.

AU - Noyes, D.

AU - Ryan, J. M.

AU - Samuelson, F. W.

AU - Saz Parkinson, P. M.

AU - Shoup, A.

AU - Sinnis, G.

AU - Smith, A. J.

AU - Sullivan, G. W.

PY - 2006/1

Y1 - 2006/1

N2 - The Milagro gamma-ray observatory utilizes a large water Cherenkov detector to observe TeV extensive air showers produced by high energy particles impacting the Earth's atmosphere. Milagro is different from Atmospheric Cherenkov Telescopes that are used to study TeV gamma-rays in that it views a wide field (2 steradian over-head sky) and it continuously operates (>90% live time). These factors give Milagro the potential for discovery of new sources with unknown positions and times, such as gamma-ray bursts, flaring AGN, and observation of diffuse extended sources like the Galactic plane or large supernova remnants. The Milagro detector consists of a 4800 m2 pond instrumented with 723 8" PMTs which detect Cherenkov light produced by secondary air-shower particles. A sparse array of 175 4000l water tanks surrounding the central pond detector has recently been added which will extend the physical area of Milagro to 40,000 m2 and substantially increase the sensitivity of the instrument. Based on three years of operation, Milagro has established its sensitivity through the detection of the Crab plerion and active galaxy Markarian 421. A summary of the recent results from the Milagro collaboration is presented with a focus on the first observation of the galactic plane in the TeV range and evidence for two newly observed TeV sources: diffuse emission from the Cygnus Region, and evidence for an extended TeV hot spot near the EGRET unidentified 3EG J0520+2556.

AB - The Milagro gamma-ray observatory utilizes a large water Cherenkov detector to observe TeV extensive air showers produced by high energy particles impacting the Earth's atmosphere. Milagro is different from Atmospheric Cherenkov Telescopes that are used to study TeV gamma-rays in that it views a wide field (2 steradian over-head sky) and it continuously operates (>90% live time). These factors give Milagro the potential for discovery of new sources with unknown positions and times, such as gamma-ray bursts, flaring AGN, and observation of diffuse extended sources like the Galactic plane or large supernova remnants. The Milagro detector consists of a 4800 m2 pond instrumented with 723 8" PMTs which detect Cherenkov light produced by secondary air-shower particles. A sparse array of 175 4000l water tanks surrounding the central pond detector has recently been added which will extend the physical area of Milagro to 40,000 m2 and substantially increase the sensitivity of the instrument. Based on three years of operation, Milagro has established its sensitivity through the detection of the Crab plerion and active galaxy Markarian 421. A summary of the recent results from the Milagro collaboration is presented with a focus on the first observation of the galactic plane in the TeV range and evidence for two newly observed TeV sources: diffuse emission from the Cygnus Region, and evidence for an extended TeV hot spot near the EGRET unidentified 3EG J0520+2556.

UR - http://www.scopus.com/inward/record.url?scp=29644445243&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=29644445243&partnerID=8YFLogxK

U2 - 10.1016/j.nuclphysbps.2005.07.018

DO - 10.1016/j.nuclphysbps.2005.07.018

M3 - Article

VL - 151

SP - 101

EP - 107

JO - Nuclear and Particle Physics Proceedings

JF - Nuclear and Particle Physics Proceedings

SN - 2405-6014

IS - 1

ER -