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. Gaidos; S. 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

doi:10.1086/422469

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

Physics and Astronomy (Twin Cities)

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196 Scopus citations

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 language	English (US)
Pages (from-to)	L97-L100
Journal	Astrophysical Journal
Volume	608
Issue number	2 II
DOIs	https://doi.org/10.1086/422469
State	Published - Jun 20 2004

Bibliographical note

Funding Information:
We would like to acknowledge Fulvio Melia, Paolo Gondolo, Jonathan Katz, and Ramanath Cowsik for useful discussions. The VERITAS Collaboration is supported by the US Department of Energy, NSF, the Smithsonian Institution, PPARC (UK), NSERC (Canada), and Enterprise-Ireland.

Keywords

Dark matter
Galaxy: center
Galaxy: nucleus
Gamma rays: observations

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10.1086/422469

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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., ... Nolan, S. (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, 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 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

@article{508b148c6a764c73a475a6469831db9c,

title = "TeV gamma-ray observations of the galactic center",

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.",

keywords = "Dark matter, Galaxy: center, Galaxy: nucleus, Gamma rays: observations",

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",

note = "Funding Information: We would like to acknowledge Fulvio Melia, Paolo Gondolo, Jonathan Katz, and Ramanath Cowsik for useful discussions. The VERITAS Collaboration is supported by the US Department of Energy, NSF, the Smithsonian Institution, PPARC (UK), NSERC (Canada), and Enterprise-Ireland.",

year = "2004",

month = jun,

day = "20",

doi = "10.1086/422469",

language = "English (US)",

volume = "608",

pages = "L97--L100",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "IOP Publishing Ltd.",

number = "2 II",

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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.

N1 - Funding Information: We would like to acknowledge Fulvio Melia, Paolo Gondolo, Jonathan Katz, and Ramanath Cowsik for useful discussions. The VERITAS Collaboration is supported by the US Department of Energy, NSF, the Smithsonian Institution, PPARC (UK), NSERC (Canada), and Enterprise-Ireland.

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.

KW - Dark matter

KW - Galaxy: center

KW - Galaxy: nucleus

KW - Gamma rays: observations

UR - http://www.scopus.com/inward/record.url?scp=3142712468&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=3142712468&partnerID=8YFLogxK

U2 - 10.1086/422469

DO - 10.1086/422469

M3 - Article

AN - SCOPUS:3142712468

SN - 0004-637X

VL - 608

SP - L97-L100

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2 II

ER -

TeV gamma-ray observations of the galactic center

Abstract

Bibliographical note

Keywords

Publisher link

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