Observation of M87 at 400 GeV with the whipple 10 meter telescope

S. Le Bohec; H. M. Badran; I. H. Bond; P. J. Boyle; S. M. Bradbury; J. H. Buckley; D. A. Carter-Lewis; M. Catanese; O. Celik; 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; 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; K. Kosack; H. Krawczynski; F. Krennrich; M. J. Lang; E. Linton; J. Lloyd-Evans; A. Milovanovic; P. Moriarty; D. Müller; 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

doi:10.1086/421697

Observation of M87 at 400 GeV with the whipple 10 meter telescope

S. Le Bohec
, H. M. Badran
, I. H. Bond
, P. J. Boyle
, S. M. Bradbury
, J. H. Buckley
, D. A. Carter-Lewis
, M. Catanese
, O. Celik
, 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, 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, K. Kosack, H. Krawczynski, F. Krennrich, M. J. Lang, E. Linton, J. Lloyd-Evans, A. Milovanovic, P. Moriarty, D. Müller, 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

Iowa State University
Tanta University
University of Leeds
University of Chicago
Washington University in St. Louis
Center for Astrophysics | Harvard & Smithsonian
University of California, Los Angeles
Purdue University
Grinnell College
National University of Ireland
IDA Business Park
University of Utah
University of Arkansas
McGill University
DePauw University
Galway-Mayo Institute of Technology
Biochemical and Environmental Engineering
GSFC Laboratory for Atmopsheres
Cork Institute of Technology

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

We present results from observations taken with the Whipple 10 m very high energy γ-ray telescope with maximal sensitivity at 400 GeV during 39 hr between 2000 and 2003 in the direction of the giant radio galaxy M87. Using the entire data set, we derive a 99% confidence level upper limit on the flux of γ-ray emission above 400 GeV from M87 to be ≤6.9 × 10 ^-12 cm^-2 s^-1. This suggests variability at the 90% confidence level when compared to the flux measured by the HEGRA collaboration in 1999 if the differential spectrum is steeper than a power law of index 3.75. Our search for a correlation between the Rossi X-Ray Timing Explorer all-sky monitor observation and a potential γ-ray signal is inconclusive.

langue originale	Anglais
Pages (de - à)	156-160
Nombre de pages	5
journal	Astrophysical Journal
Volume	610
Numéro de publication	1 I
Les DOIs	https://doi.org/10.1086/421697
état	Publié - 20 juil. 2004
Modification externe	Oui

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10.1086/421697

Contient cette citation

Le Bohec, S., Badran, H. M., Bond, I. H., Boyle, P. J., Bradbury, S. M., Buckley, J. H., Carter-Lewis, D. A., Catanese, M., Celik, O., 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., ... Zweerink, J. (2004). Observation of M87 at 400 GeV with the whipple 10 meter telescope. Astrophysical Journal, 610(1 I), 156-160. https://doi.org/10.1086/421697

@article{c01d398bb52c4c519d62e8b67bd8b155,

title = "Observation of M87 at 400 GeV with the whipple 10 meter telescope",

abstract = "We present results from observations taken with the Whipple 10 m very high energy γ-ray telescope with maximal sensitivity at 400 GeV during 39 hr between 2000 and 2003 in the direction of the giant radio galaxy M87. Using the entire data set, we derive a 99\% confidence level upper limit on the flux of γ-ray emission above 400 GeV from M87 to be ≤6.9 × 10 -12 cm-2 s-1. This suggests variability at the 90\% confidence level when compared to the flux measured by the HEGRA collaboration in 1999 if the differential spectrum is steeper than a power law of index 3.75. Our search for a correlation between the Rossi X-Ray Timing Explorer all-sky monitor observation and a potential γ-ray signal is inconclusive.",

keywords = "Galaxies: active, Galaxies: individual (M87), Gamma rays: observations",

author = "\{Le Bohec\}, S. 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 M. Catanese and O. Celik 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 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 K. Kosack and H. Krawczynski and F. Krennrich and Lang, \{M. J.\} and E. Linton and J. Lloyd-Evans and A. Milovanovic and P. Moriarty and D. M{\"u}ller 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",

year = "2004",

month = jul,

day = "20",

doi = "10.1086/421697",

language = "English",

volume = "610",

pages = "156--160",

journal = "Astrophysical Journal",

issn = "0004-637X",

number = "1 I",

}

Le Bohec, S, Badran, HM, Bond, IH, Boyle, PJ, Bradbury, SM, Buckley, JH, Carter-Lewis, DA, Catanese, M, Celik, O, 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, 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, Kosack, K, Krawczynski, H, Krennrich, F, Lang, MJ, Linton, E, Lloyd-Evans, J, Milovanovic, A, Moriarty, P, Müller, 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, 'Observation of M87 at 400 GeV with the whipple 10 meter telescope', Astrophysical Journal, VOL. 610, Numéro 1 I, p. 156-160. https://doi.org/10.1086/421697

TY - JOUR

T1 - Observation of M87 at 400 GeV with the whipple 10 meter telescope

AU - Le Bohec, S.

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 - Catanese, M.

AU - Celik, O.

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 - 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 - Kosack, K.

AU - Krawczynski, H.

AU - Krennrich, F.

AU - Lang, M. J.

AU - Linton, E.

AU - Lloyd-Evans, J.

AU - Milovanovic, A.

AU - Moriarty, P.

AU - Müller, 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 - 2004/7/20

Y1 - 2004/7/20

N2 - We present results from observations taken with the Whipple 10 m very high energy γ-ray telescope with maximal sensitivity at 400 GeV during 39 hr between 2000 and 2003 in the direction of the giant radio galaxy M87. Using the entire data set, we derive a 99% confidence level upper limit on the flux of γ-ray emission above 400 GeV from M87 to be ≤6.9 × 10 -12 cm-2 s-1. This suggests variability at the 90% confidence level when compared to the flux measured by the HEGRA collaboration in 1999 if the differential spectrum is steeper than a power law of index 3.75. Our search for a correlation between the Rossi X-Ray Timing Explorer all-sky monitor observation and a potential γ-ray signal is inconclusive.

AB - We present results from observations taken with the Whipple 10 m very high energy γ-ray telescope with maximal sensitivity at 400 GeV during 39 hr between 2000 and 2003 in the direction of the giant radio galaxy M87. Using the entire data set, we derive a 99% confidence level upper limit on the flux of γ-ray emission above 400 GeV from M87 to be ≤6.9 × 10 -12 cm-2 s-1. This suggests variability at the 90% confidence level when compared to the flux measured by the HEGRA collaboration in 1999 if the differential spectrum is steeper than a power law of index 3.75. Our search for a correlation between the Rossi X-Ray Timing Explorer all-sky monitor observation and a potential γ-ray signal is inconclusive.

KW - Galaxies: active

KW - Galaxies: individual (M87)

KW - Gamma rays: observations

U2 - 10.1086/421697

DO - 10.1086/421697

M3 - Article

AN - SCOPUS:4444240627

SN - 0004-637X

VL - 610

SP - 156

EP - 160

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1 I

ER -

Observation of M87 at 400 GeV with the whipple 10 meter telescope

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