Search for high-energy gamma rays from an X-ray-selected blazar sample

I. De La Calle Pérez, I. H. Bond, P. J. Boyle, S. M. Bradbury, J. H. Buckley, D. A. Carter-Lewis, O. Celik, W. Cui, C. Dowdall, C. Duke, A. Falcone, D. J. Fegan, S. J. Fegan, J. P. Finley, L. Fortson, J. A. Gaidos, K. Gibbs, S. Gammell, J. Hall, T. A. HallA. M. Hillas, J. Holder, D. Horan, M. Jordan, M. Kertzman, D. Kieda, J. Kildea, J. Knapp, K. Kosack, H. Krawczynski, F. Krennrich, S. LeBohec, E. T. Linton, J. Lloyd-Evans, P. Moriarty, D. Müller, T. N. Nagai, R. A. Ong, M. Page, R. Pallassini, D. Petry, B. Power-Mooney, J. Quinn, P. Rebillot, P. T. Reynolds, H. J. Rose, M. Schroedter, G. H. Sembroski, S. P. Swordy, V. V. Vassiliev, S. P. Wakely, G. Walker, T. C. Weekes

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Our understanding of blazars has been greatly increased in recent years by extensive multiwavelength observations, particularly in the radio, X-ray, and gamma-ray regions. Over the past decade the Whipple 10 m telescope has contributed to this with the detection of five BL Lacertae objects at very high gamma-ray energies. The combination of multiwavelength data has shown that blazars follow a well-defined sequence in terms of their broadband spectral properties. Together with providing constraints on emission models, this information has yielded a means by which potential sources of TeV emission may be identified and predictions made as to their possible gamma-ray flux. We have used the Whipple telescope to search for TeV gamma-ray emission from eight objects selected from a list of such candidates. No evidence has been found for very high energy emission from the objects in our sample, and upper limits have been derived for the mean gamma-ray flux above 390 GeV. These flux upper limits are compared with the model predictions, and the implications of our results for future observations are discussed.

Original languageEnglish (US)
Pages (from-to)909-917
Number of pages9
JournalAstrophysical Journal
Volume599
Issue number2 I
DOIs
StatePublished - Dec 20 2003

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gamma rays
blazars
energy
x rays
telescopes
BL Lacertae objects
prediction
predictions
lists
radio
broadband
detection

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

De La Calle Pérez, I., Bond, I. H., Boyle, P. J., Bradbury, S. M., Buckley, J. H., Carter-Lewis, D. A., ... Weekes, T. C. (2003). Search for high-energy gamma rays from an X-ray-selected blazar sample. Astrophysical Journal, 599(2 I), 909-917. https://doi.org/10.1086/379544
De La Calle Pérez, I. ; Bond, I. H. ; Boyle, P. J. ; Bradbury, S. M. ; Buckley, J. H. ; Carter-Lewis, D. A. ; Celik, O. ; Cui, W. ; Dowdall, C. ; Duke, C. ; Falcone, A. ; Fegan, D. J. ; Fegan, S. J. ; Finley, J. P. ; Fortson, L. ; Gaidos, J. A. ; Gibbs, K. ; Gammell, S. ; Hall, J. ; Hall, T. A. ; Hillas, A. M. ; Holder, J. ; Horan, D. ; Jordan, M. ; Kertzman, M. ; Kieda, D. ; Kildea, J. ; Knapp, J. ; Kosack, K. ; Krawczynski, H. ; Krennrich, F. ; LeBohec, S. ; Linton, E. T. ; Lloyd-Evans, J. ; Moriarty, P. ; Müller, D. ; Nagai, T. N. ; Ong, R. A. ; Page, M. ; Pallassini, R. ; Petry, D. ; Power-Mooney, B. ; Quinn, J. ; Rebillot, P. ; Reynolds, P. T. ; Rose, H. J. ; Schroedter, M. ; Sembroski, G. H. ; Swordy, S. P. ; Vassiliev, V. V. ; Wakely, S. P. ; Walker, G. ; Weekes, T. C. / Search for high-energy gamma rays from an X-ray-selected blazar sample. In: Astrophysical Journal. 2003 ; Vol. 599, No. 2 I. pp. 909-917.
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De La Calle Pérez, I, Bond, IH, Boyle, PJ, Bradbury, SM, Buckley, JH, Carter-Lewis, DA, Celik, O, Cui, W, Dowdall, C, Duke, C, Falcone, A, Fegan, DJ, Fegan, SJ, Finley, JP, Fortson, L, Gaidos, JA, Gibbs, K, Gammell, S, Hall, J, Hall, TA, Hillas, AM, Holder, J, Horan, D, Jordan, M, Kertzman, M, Kieda, D, Kildea, J, Knapp, J, Kosack, K, Krawczynski, H, Krennrich, F, LeBohec, S, Linton, ET, Lloyd-Evans, J, Moriarty, P, Müller, D, Nagai, TN, Ong, RA, Page, M, Pallassini, R, Petry, D, Power-Mooney, B, Quinn, J, Rebillot, P, Reynolds, PT, Rose, HJ, Schroedter, M, Sembroski, GH, Swordy, SP, Vassiliev, VV, Wakely, SP, Walker, G & Weekes, TC 2003, 'Search for high-energy gamma rays from an X-ray-selected blazar sample', Astrophysical Journal, vol. 599, no. 2 I, pp. 909-917. https://doi.org/10.1086/379544

Search for high-energy gamma rays from an X-ray-selected blazar sample. / De La Calle Pérez, I.; Bond, I. H.; Boyle, P. J.; Bradbury, S. M.; Buckley, J. H.; Carter-Lewis, D. A.; Celik, O.; Cui, W.; Dowdall, C.; Duke, C.; Falcone, A.; Fegan, D. J.; Fegan, S. J.; Finley, J. P.; Fortson, L.; Gaidos, J. A.; Gibbs, K.; Gammell, S.; Hall, J.; Hall, T. A.; Hillas, A. M.; Holder, J.; Horan, D.; Jordan, M.; Kertzman, M.; Kieda, D.; Kildea, J.; Knapp, J.; Kosack, K.; Krawczynski, H.; Krennrich, F.; LeBohec, S.; Linton, E. T.; Lloyd-Evans, J.; Moriarty, P.; Müller, D.; Nagai, T. N.; Ong, R. A.; Page, M.; Pallassini, R.; Petry, D.; Power-Mooney, B.; Quinn, J.; Rebillot, P.; Reynolds, P. T.; Rose, H. J.; Schroedter, M.; Sembroski, G. H.; Swordy, S. P.; Vassiliev, V. V.; Wakely, S. P.; Walker, G.; Weekes, T. C.

In: Astrophysical Journal, Vol. 599, No. 2 I, 20.12.2003, p. 909-917.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Search for high-energy gamma rays from an X-ray-selected blazar sample

AU - De La Calle Pérez, I.

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 - Cui, W.

AU - Dowdall, C.

AU - Duke, C.

AU - Falcone, A.

AU - Fegan, D. J.

AU - Fegan, S. J.

AU - Finley, J. P.

AU - Fortson, L.

AU - Gaidos, J. A.

AU - Gibbs, K.

AU - Gammell, S.

AU - Hall, J.

AU - Hall, T. A.

AU - Hillas, A. M.

AU - Holder, J.

AU - Horan, D.

AU - Jordan, M.

AU - Kertzman, M.

AU - Kieda, D.

AU - Kildea, J.

AU - Knapp, J.

AU - Kosack, K.

AU - Krawczynski, H.

AU - Krennrich, F.

AU - LeBohec, S.

AU - Linton, E. T.

AU - Lloyd-Evans, J.

AU - Moriarty, P.

AU - Müller, D.

AU - Nagai, T. N.

AU - Ong, R. A.

AU - Page, M.

AU - Pallassini, R.

AU - Petry, D.

AU - Power-Mooney, B.

AU - Quinn, J.

AU - Rebillot, P.

AU - Reynolds, P. T.

AU - Rose, H. J.

AU - Schroedter, M.

AU - Sembroski, G. H.

AU - Swordy, S. P.

AU - Vassiliev, V. V.

AU - Wakely, S. P.

AU - Walker, G.

AU - Weekes, T. C.

PY - 2003/12/20

Y1 - 2003/12/20

N2 - Our understanding of blazars has been greatly increased in recent years by extensive multiwavelength observations, particularly in the radio, X-ray, and gamma-ray regions. Over the past decade the Whipple 10 m telescope has contributed to this with the detection of five BL Lacertae objects at very high gamma-ray energies. The combination of multiwavelength data has shown that blazars follow a well-defined sequence in terms of their broadband spectral properties. Together with providing constraints on emission models, this information has yielded a means by which potential sources of TeV emission may be identified and predictions made as to their possible gamma-ray flux. We have used the Whipple telescope to search for TeV gamma-ray emission from eight objects selected from a list of such candidates. No evidence has been found for very high energy emission from the objects in our sample, and upper limits have been derived for the mean gamma-ray flux above 390 GeV. These flux upper limits are compared with the model predictions, and the implications of our results for future observations are discussed.

AB - Our understanding of blazars has been greatly increased in recent years by extensive multiwavelength observations, particularly in the radio, X-ray, and gamma-ray regions. Over the past decade the Whipple 10 m telescope has contributed to this with the detection of five BL Lacertae objects at very high gamma-ray energies. The combination of multiwavelength data has shown that blazars follow a well-defined sequence in terms of their broadband spectral properties. Together with providing constraints on emission models, this information has yielded a means by which potential sources of TeV emission may be identified and predictions made as to their possible gamma-ray flux. We have used the Whipple telescope to search for TeV gamma-ray emission from eight objects selected from a list of such candidates. No evidence has been found for very high energy emission from the objects in our sample, and upper limits have been derived for the mean gamma-ray flux above 390 GeV. These flux upper limits are compared with the model predictions, and the implications of our results for future observations are discussed.

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De La Calle Pérez I, Bond IH, Boyle PJ, Bradbury SM, Buckley JH, Carter-Lewis DA et al. Search for high-energy gamma rays from an X-ray-selected blazar sample. Astrophysical Journal. 2003 Dec 20;599(2 I):909-917. https://doi.org/10.1086/379544