TeV gamma-ray observations of the galactic center

K. Kosack, H. M. Badran, I. H. Bond, P. J. Boyle, S. M. Bradbury, J. H. Buckley, D. A. Carter-Lewis, O. Celik, V. Connaughton, W. Cui, M. Daniel, M. D'Vali, I. De La Calle Perez, C. Duke, A. Falcone, D. J. Fegan, S. J. Fegan, J. P. Finley, L. F. Fortson, J. A. GaidosS. Gammell, K. Gibbs, G. H. Gillanders, J. Grube, K. Gutierrez, J. Hall, T. A. Hall, D. Hanna, A. M. Hillas, J. Holder, D. Horan, A. Jarvis, M. Jordan, G. E. Kenny, M. Kertzman, D. Kieda, J. Kildea, J. Knapp, H. Krawczynski, F. Krennrich, M. J. Lang, S. Le Bohec, E. Linton, J. Lloyd-Evans, A. Milovanovic, J. McEnery, P. Moriarty, D. Muller, T. Nagai, S. Nolan, R. A. Ong, R. Pallassini, D. Petry, B. Power-Mooney, J. Quinn, M. Quinn, K. Ragan, P. Rebillot, P. T. Reynolds, H. J. Rose, M. Schroedter, G. H. Sembroski, S. P. Swordy, A. Syson, V. V. Vassiliev, S. P. Wakely, G. Walker, T. C. Weekes, J. Zweerink

Research output: Contribution to journalArticle

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Abstract

We report a possible detection of TeV gamma rays from the Galactic center by the Whipple 10 m gamma-ray telescope. Twenty-six hours of data were taken over an extended period from 1995 through 2003 resulting in a total significance of 3.7 σ. The measured excess corresponds to an integral flux of 1.6 × 10-8 ± 0.5 × 10-8 (stat) ± 0.3 × 10-8 (sys) photons m-2 s-1 above an energy of 2.8 TeV, roughly 40% of the flux from the Crab Nebula at this energy. The 95% confidence region has an angular extent of about 15′ and includes the position of Sgr A*. The detection is consistent with a point source and shows no evidence of variability.

Original languageEnglish (US)
Pages (from-to)L97-L100
JournalAstrophysical Journal
Volume608
Issue number2 II
DOIs
StatePublished - Jun 20 2004

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gamma rays
gamma ray telescopes
Crab nebula
point sources
point source
energy
crab
confidence
photons
detection

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Kosack, K., Badran, H. M., Bond, I. H., Boyle, P. J., Bradbury, S. M., Buckley, J. H., ... Zweerink, J. (2004). TeV gamma-ray observations of the galactic center. Astrophysical Journal, 608(2 II), L97-L100. https://doi.org/10.1086/422469
Kosack, K. ; Badran, H. M. ; Bond, I. H. ; Boyle, P. J. ; Bradbury, S. M. ; Buckley, J. H. ; Carter-Lewis, D. A. ; Celik, O. ; Connaughton, V. ; Cui, W. ; Daniel, M. ; D'Vali, M. ; De La Calle Perez, I. ; Duke, C. ; Falcone, A. ; Fegan, D. J. ; Fegan, S. J. ; Finley, J. P. ; Fortson, L. F. ; Gaidos, J. A. ; Gammell, S. ; Gibbs, K. ; Gillanders, G. H. ; Grube, J. ; Gutierrez, K. ; Hall, J. ; Hall, T. A. ; Hanna, D. ; Hillas, A. M. ; Holder, J. ; Horan, D. ; Jarvis, A. ; Jordan, M. ; Kenny, G. E. ; Kertzman, M. ; Kieda, D. ; Kildea, J. ; Knapp, J. ; Krawczynski, H. ; Krennrich, F. ; Lang, M. J. ; Le Bohec, S. ; Linton, E. ; Lloyd-Evans, J. ; Milovanovic, A. ; McEnery, J. ; Moriarty, P. ; Muller, D. ; Nagai, T. ; Nolan, S. ; Ong, R. A. ; Pallassini, R. ; Petry, D. ; Power-Mooney, B. ; Quinn, J. ; Quinn, M. ; Ragan, K. ; Rebillot, P. ; Reynolds, P. T. ; Rose, H. J. ; Schroedter, M. ; Sembroski, G. H. ; Swordy, S. P. ; Syson, A. ; Vassiliev, V. V. ; Wakely, S. P. ; Walker, G. ; Weekes, T. C. ; Zweerink, J. / TeV gamma-ray observations of the galactic center. In: Astrophysical Journal. 2004 ; Vol. 608, No. 2 II. pp. L97-L100.
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abstract = "We report a possible detection of TeV gamma rays from the Galactic center by the Whipple 10 m gamma-ray telescope. Twenty-six hours of data were taken over an extended period from 1995 through 2003 resulting in a total significance of 3.7 σ. The measured excess corresponds to an integral flux of 1.6 × 10-8 ± 0.5 × 10-8 (stat) ± 0.3 × 10-8 (sys) photons m-2 s-1 above an energy of 2.8 TeV, roughly 40{\%} of the flux from the Crab Nebula at this energy. The 95{\%} confidence region has an angular extent of about 15′ and includes the position of Sgr A*. The detection is consistent with a point source and shows no evidence of variability.",
author = "K. Kosack and Badran, {H. M.} and Bond, {I. H.} and Boyle, {P. J.} and Bradbury, {S. M.} and Buckley, {J. H.} and Carter-Lewis, {D. A.} and O. Celik and V. Connaughton and W. Cui and M. Daniel and M. D'Vali and {De La Calle Perez}, I. and C. Duke and A. Falcone and Fegan, {D. J.} and Fegan, {S. J.} and Finley, {J. P.} and Fortson, {L. F.} and Gaidos, {J. A.} and S. Gammell and K. Gibbs and Gillanders, {G. H.} and J. Grube and K. Gutierrez and J. Hall and Hall, {T. A.} and D. Hanna and Hillas, {A. M.} and J. Holder and D. Horan and A. Jarvis and M. Jordan and Kenny, {G. E.} and M. Kertzman and D. Kieda and J. Kildea and J. Knapp and H. Krawczynski and F. Krennrich and Lang, {M. J.} and {Le Bohec}, S. and E. Linton and J. Lloyd-Evans and A. Milovanovic and J. McEnery and P. Moriarty and D. Muller and T. Nagai and S. Nolan and Ong, {R. A.} and R. Pallassini and D. Petry and B. Power-Mooney and J. Quinn and M. Quinn and K. Ragan and P. Rebillot and Reynolds, {P. T.} and Rose, {H. J.} and M. Schroedter and Sembroski, {G. H.} and Swordy, {S. P.} and A. Syson and Vassiliev, {V. V.} and Wakely, {S. P.} and G. Walker and Weekes, {T. C.} and J. Zweerink",
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Kosack, K, Badran, HM, Bond, IH, Boyle, PJ, Bradbury, SM, Buckley, JH, Carter-Lewis, DA, Celik, O, Connaughton, V, Cui, W, Daniel, M, D'Vali, M, De La Calle Perez, I, Duke, C, Falcone, A, Fegan, DJ, Fegan, SJ, Finley, JP, Fortson, LF, Gaidos, JA, Gammell, S, Gibbs, K, Gillanders, GH, Grube, J, Gutierrez, K, Hall, J, Hall, TA, Hanna, D, Hillas, AM, Holder, J, Horan, D, Jarvis, A, Jordan, M, Kenny, GE, Kertzman, M, Kieda, D, Kildea, J, Knapp, J, Krawczynski, H, Krennrich, F, Lang, MJ, Le Bohec, S, Linton, E, Lloyd-Evans, J, Milovanovic, A, McEnery, J, Moriarty, P, Muller, D, Nagai, T, Nolan, S, Ong, RA, Pallassini, R, Petry, D, Power-Mooney, B, Quinn, J, Quinn, M, Ragan, K, Rebillot, P, Reynolds, PT, Rose, HJ, Schroedter, M, Sembroski, GH, Swordy, SP, Syson, A, Vassiliev, VV, Wakely, SP, Walker, G, Weekes, TC & Zweerink, J 2004, 'TeV gamma-ray observations of the galactic center', Astrophysical Journal, vol. 608, no. 2 II, pp. L97-L100. https://doi.org/10.1086/422469

TeV gamma-ray observations of the galactic center. / Kosack, K.; Badran, H. M.; Bond, I. H.; Boyle, P. J.; Bradbury, S. M.; Buckley, J. H.; Carter-Lewis, D. A.; Celik, O.; Connaughton, V.; Cui, W.; Daniel, M.; D'Vali, M.; De La Calle Perez, I.; Duke, C.; Falcone, A.; Fegan, D. J.; Fegan, S. J.; Finley, J. P.; Fortson, L. F.; Gaidos, J. A.; Gammell, S.; Gibbs, K.; Gillanders, G. H.; Grube, J.; Gutierrez, K.; Hall, J.; Hall, T. A.; Hanna, D.; Hillas, A. M.; Holder, J.; Horan, D.; Jarvis, A.; Jordan, M.; Kenny, G. E.; Kertzman, M.; Kieda, D.; Kildea, J.; Knapp, J.; Krawczynski, H.; Krennrich, F.; Lang, M. J.; Le Bohec, S.; Linton, E.; Lloyd-Evans, J.; Milovanovic, A.; McEnery, J.; Moriarty, P.; Muller, D.; Nagai, T.; Nolan, S.; Ong, R. A.; Pallassini, R.; Petry, D.; Power-Mooney, B.; Quinn, J.; Quinn, M.; Ragan, K.; Rebillot, P.; Reynolds, P. T.; Rose, H. J.; Schroedter, M.; Sembroski, G. H.; Swordy, S. P.; Syson, A.; Vassiliev, V. V.; Wakely, S. P.; Walker, G.; Weekes, T. C.; Zweerink, J.

In: Astrophysical Journal, Vol. 608, No. 2 II, 20.06.2004, p. L97-L100.

Research output: Contribution to journalArticle

TY - JOUR

T1 - TeV gamma-ray observations of the galactic center

AU - Kosack, K.

AU - Badran, H. M.

AU - Bond, I. H.

AU - Boyle, P. J.

AU - Bradbury, S. M.

AU - Buckley, J. H.

AU - Carter-Lewis, D. A.

AU - Celik, O.

AU - Connaughton, V.

AU - Cui, W.

AU - Daniel, M.

AU - D'Vali, M.

AU - De La Calle Perez, I.

AU - Duke, C.

AU - Falcone, A.

AU - Fegan, D. J.

AU - Fegan, S. J.

AU - Finley, J. P.

AU - Fortson, L. F.

AU - Gaidos, J. A.

AU - Gammell, S.

AU - Gibbs, K.

AU - Gillanders, G. H.

AU - Grube, J.

AU - Gutierrez, K.

AU - Hall, J.

AU - Hall, T. A.

AU - Hanna, D.

AU - Hillas, A. M.

AU - Holder, J.

AU - Horan, D.

AU - Jarvis, A.

AU - Jordan, M.

AU - Kenny, G. E.

AU - Kertzman, M.

AU - Kieda, D.

AU - Kildea, J.

AU - Knapp, J.

AU - Krawczynski, H.

AU - Krennrich, F.

AU - Lang, M. J.

AU - Le Bohec, S.

AU - Linton, E.

AU - Lloyd-Evans, J.

AU - Milovanovic, A.

AU - McEnery, J.

AU - Moriarty, P.

AU - Muller, D.

AU - Nagai, T.

AU - Nolan, S.

AU - Ong, R. A.

AU - Pallassini, R.

AU - Petry, D.

AU - Power-Mooney, B.

AU - Quinn, J.

AU - Quinn, M.

AU - Ragan, K.

AU - Rebillot, P.

AU - Reynolds, P. T.

AU - Rose, H. J.

AU - Schroedter, M.

AU - Sembroski, G. H.

AU - Swordy, S. P.

AU - Syson, A.

AU - Vassiliev, V. V.

AU - Wakely, S. P.

AU - Walker, G.

AU - Weekes, T. C.

AU - Zweerink, J.

PY - 2004/6/20

Y1 - 2004/6/20

N2 - We report a possible detection of TeV gamma rays from the Galactic center by the Whipple 10 m gamma-ray telescope. Twenty-six hours of data were taken over an extended period from 1995 through 2003 resulting in a total significance of 3.7 σ. The measured excess corresponds to an integral flux of 1.6 × 10-8 ± 0.5 × 10-8 (stat) ± 0.3 × 10-8 (sys) photons m-2 s-1 above an energy of 2.8 TeV, roughly 40% of the flux from the Crab Nebula at this energy. The 95% confidence region has an angular extent of about 15′ and includes the position of Sgr A*. The detection is consistent with a point source and shows no evidence of variability.

AB - We report a possible detection of TeV gamma rays from the Galactic center by the Whipple 10 m gamma-ray telescope. Twenty-six hours of data were taken over an extended period from 1995 through 2003 resulting in a total significance of 3.7 σ. The measured excess corresponds to an integral flux of 1.6 × 10-8 ± 0.5 × 10-8 (stat) ± 0.3 × 10-8 (sys) photons m-2 s-1 above an energy of 2.8 TeV, roughly 40% of the flux from the Crab Nebula at this energy. The 95% confidence region has an angular extent of about 15′ and includes the position of Sgr A*. The detection is consistent with a point source and shows no evidence of variability.

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U2 - 10.1086/422469

DO - 10.1086/422469

M3 - Article

AN - SCOPUS:3142712468

VL - 608

SP - L97-L100

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 2 II

ER -

Kosack K, Badran HM, Bond IH, Boyle PJ, Bradbury SM, Buckley JH et al. TeV gamma-ray observations of the galactic center. Astrophysical Journal. 2004 Jun 20;608(2 II):L97-L100. https://doi.org/10.1086/422469