Zobrazeno 1 - 10
of 289
pro vyhledávání: '"Catanese, M."'
Autor:
Krennrich, F., Badran, H. M., Bond, I. H., Bradbury, S. M., Buckley, J. H., Carter-Lewis, D. A., Catanese, M., Cui, W., Dunlea, S., Das, D., Perez, I. de la Calle, Fegan, D. J., Fegan, S. J., Finley, J. P., Gaidos, J. A., Gibbs, K., Gillanders, G. H., Hall, T. A., Hillas, A. M., Holder, J., Horan, D., Jordan, M., Kertzman, M., Kieda, D., Kildea, J., Knapp, J., Kosack, K., Lang, M. J., LeBohec, S., McKernan, B., Moriarty, P., Müller, D., Ong, R., Pallassini, R., Petry, D., Quinn, J., Reay, N. W., Reynolds, P. T., Rose, H. J., Sembroski, G. H., Sidwell, R., Stanton, N., Swordy, S. P., Vassiliev, V. V., Wakely, S. P., Weekes, T. C.
Publikováno v:
Astrophys.J.560:L45-L48,2001
Exceptionally strong and long lasting flaring activity of the blazar Markarian 421 (Mrk 421) occurred between January and March 2001. Based on the excellent signal-to-noise ratio of the data we derive the energy spectrum between 260 GeV - 17 TeV with
Externí odkaz:
http://arxiv.org/abs/astro-ph/0107113
Autor:
Abu-Zayyad, T., Belov, K., Bird, D. J., Boyer, J., Cao, Z., Catanese, M., Chen, G. F., Clay, R. W., Covault, C. E., Dai, H. Y., Dawson, B. R., Elbert, J. W., Fick, B. E., Fortson, L. F., Fowler, J. W., Gibbs, K. G., Glasmacher, M. A. K., Green, K. D., Ho, Y., Huang, A., Jui, C. C., Kidd, M. J., Kieda, D. B., Knapp, B. C., Ko, S., Larsen, C. G., Lee, W., Loh, E. C., Mannel, E. J., Matthews, J., Matthews, J. N., Newport, B. J., Nitz, D. F., Ong, R. A., Simpson, K. M., Smith, J. D., Sinclair, D., Sokolsky, P., Sommers, P., Song, C., Tang, J. K. K., Thomas, S. B., van der Velde, J., Wiencke, L. R., Wilkinson, C. R., Yoshida, S., Zhang, X. Z.
Publikováno v:
Astrophys.J. 557 (2001) 686-699
We study the spectrum and average mass composition of cosmic rays with primary energies between 10^{17} eV and 10^{18} eV using a hybrid detector consisting of the High Resolution Fly's Eye (HiRes) prototype and the MIA muon array. Measurements have
Externí odkaz:
http://arxiv.org/abs/astro-ph/0010652
Autor:
Takahashi, T., Kataoka, J., Madejski, G., Mattox, J., Urry, C. M., Wagner, S., Aharonian, F., Catanese, M., Chiappetti, L., Coppi, P., Degrange, B., Fossati, G., Kubo, H., Krawczynski, H., Makino, F., Marshall, H., Maraschi, L., Piron, F., Remillard, R., Takahara, F., Tashiro, M., Terasranta, H., Weekes, T.
Publikováno v:
Astrophys.J. 542 (2000) L105-L110
We conducted a multi-frequency campaign for the TeV blazar Mrk~421 in 1998 April. The campaign started from a pronounced high amplitude flare recorded by SAX and Whipple; ASCA observation started three days later. In the X-ray data, we detected multi
Externí odkaz:
http://arxiv.org/abs/astro-ph/0008505
Autor:
Pian, E., Chiappetti, L., Giommi, P., Tavecchio, F., Maraschi, L., Palazzi, E., Aharonian, F., Catanese, M., Celotti, A., Degrange, B., Djannati-Atai, A., Fossati, G., Ghisellini, G., Krawczynski, H., Raiteri, C. M., Sambruna, R. M., Smith, D., Tagliaferri, G., Tosti, G., Treves, A., Urry, C. M., Villata, M.
We present the preliminary results of a long BeppoSAX observation of the BL Lac object Mkn501 carried out in June 1999. The source was fainter than found during the BeppoSAX pointings of 1997 and 1998, but is still detected with a good signal-to-nois
Externí odkaz:
http://arxiv.org/abs/astro-ph/0007268
Autor:
LeBohec, S., Bond, I. H., Bradbury, S. M., Buckley, J. H., Burdett, A. M., Carter-Lewis, D. A., Catanese, M., Cawley, M. F., Dunlea, S., D'Vali, M., Fegan, D. J., Fegan, S. J., Finley, J. P., Gaidos, J. A., Hall, T. A., Hillas, A. M., Horan, D., Knapp, J., Krennrich, F., Lessard, R. W., Macomb, D., Masterson, C., Quinn, J., Rose, H. J., Samuelson, F. W., Sembroski, G. H., Vassiliev, V. V., Weekes, T. C.
Publikováno v:
Astrophys.J. 539 (2000) 209-215
In 1998 and 1999 the Whipple Observatory 10 m telescope was used to search for diffuse gamma ray emission from the Galactic Plane. No signifiant evidence of emission was found. Assuming the TeV emission profile matches EGRET observations above 1 GeV
Externí odkaz:
http://arxiv.org/abs/astro-ph/0003265
Autor:
Lessard, R. W., Bond, I. H., Bradbury, S. M., Buckley, J. H., Burdett, A. M., Carter-Lewis, D. A., Catanese, M., Cawley, M. F., D'Vali, M., Fegan, D. J., Finley, J. P., Gaidos, J. A., Gillanders, G. H., Hall, T., Hillas, A. M., Krennrich, F., Lang, M. J., Masterson, C., Moriarty, P., Quinn, J., Rose, H. J., Samuelson, F. W., Sembroski, G. H., Srinivasan, R., Vassiliev, V. V., Weekes, T. C.
We present the results of a search for pulsed TeV emission from the Crab pulsar using the Whipple Observatory's 10 m gamma-ray telescope. The direction of the Crab pulsar was observed for a total of 73.4 hours between 1994 November and 1997 March. Du
Externí odkaz:
http://arxiv.org/abs/astro-ph/9912520
Autor:
Abu-Zayyad, T., Belov, K., Bird, D. J., Boyer, J., Cao, Z., Catanese, M., Chen, G. F., Clay, R. W., Covault, C. E., Cronin, J. W., Dai, H. Y., Dawson, B. R., Elbert, J. W., Fick, B. E., Fortson, L. F., Fowler, J. W., Gibbs, K. G., Glasmacher, M. A. K., Green, K. D., Ho, Y., Huang, A., Jui, C. C., Kidd, M. J., Kieda, D. B., Knapp, B. C., Ko, S., Larsen, C. G., Lee, W., Loh, E. C., Mannel, E. J., Matthews, J., Matthews, J. N., Newport, B. J., Nitz, D. F., Ong, R. A., Simpson, K. M., Smith, J. D., Sinclair, D., Sokolsky, P., Sommers, P., Song, C., Tang, J. K. K., Thomas, S. B., van der Velde, J. C., Wiencke, L. R., Wilkinson, C. R., Yoshida, S., Zhang, X. Z.
Publikováno v:
Phys.Rev.Lett.84:4276-4279,2000
The average mass composition of cosmic rays with primary energies between $10^{17}$eV and $10^{18}$eV has been studied using a hybrid detector consisting of the High Resolution Fly's Eye (HiRes) prototype and the MIA muon array. Measurements have bee
Externí odkaz:
http://arxiv.org/abs/astro-ph/9911144
Autor:
D'Vali, M., Bond, I. H., Bradbury, S. M., Buckley, J. H., Burdett, A. M., Carter-Lewis, D. A., Catanese, M., Cawley, M. F., Fegan, D. J., Fegan, S. J., Finley, J. P., Gaidos, J. A., Hall, T. A., Hillas, A. M., Knapp, J., Krennrich, F., Bohec, S. Le, Lessard, R. W., Masterson, C., Myles, S. D., Quinn, J., Rose, H. J., Samuelson, F. W., Sembroski, G. H., Vassiliev, V. V., Weekes, T. C.
Only BL Lac objects have been detected as extragalactic sources of very high energy (E > 300 GeV) gamma rays. Using the Whipple Observatory Gamma-ray Telescope, we have attempted to detect more BL Lacs using three approaches. First, we have conducted
Externí odkaz:
http://arxiv.org/abs/astro-ph/9907263
Autor:
Bradbury, S. M., Bond, I. H., Breslin, A. C., Buckley, J. H., Carter-Lewis, D. A., Catanese, M., Criswell, S., Dingus, B. L., Fegan, D. J., Finley, J. P., Gaidos, J., Grindlay, J., Hillas, A. M., Harris, K., Hermann, G., Kaaret, P., Kieda, D., Knapp, J., Krennrich, F., LeBohec, S., Lessard, R. W., Lloyd-Evans, J., McKernan, B., Mueller, D., Ong, R., Quenby, J. J., Quinn, J., Rochester, G., Rose, H. J., Salamon, M., Sembroski, G. H., Sumner, T., Swordy, S., Vassiliev, V. V., Weekes, T. C.
Publikováno v:
AIP Conf.Proc.510:637-641,2004
We give an overview of the current status and scientific goals of VERITAS, a proposed hexagonal array of seven 10 m aperture imaging Cherenkov telescopes. The selected site is Montosa Canyon (1390 m a.s.l.) at the Whipple Observatory, Arizona. Each t
Externí odkaz:
http://arxiv.org/abs/astro-ph/9907248
Autor:
Burdett, A. M., Bond, I. H., Boyle, P. J., Bradbury, S. M., Buckley, J. H., Carter-Lewis, D. A., Catanese, M., Cawley, M. F., D'Vali, M., Fegan, D. J., Fegan, S. J., Finley, J. P., Gaidos, J. A., Gillanders, G. H., Hall, T. A., Hillas, A. M., Kildea, J., Knapp, J., Krennrich, F., Lang, M. J., LeBohec, S., Lessard, R. W., Masterson, C., Moriarty, P., Quinn, J., Rose, H. J., Samuelson, F. W., Sembroski, G. H., Srinivasan, R., Vassiliev, V. V., Weekes, T. C.
We present the results of a search for pulsed TeV emission from the Crab pulsar using the Whipple Observatory's 10m gamma-ray telescope. The direction of the Crab pulsar was observed for a total of 73.4 hours between 1994 November and 1997 March. Spe
Externí odkaz:
http://arxiv.org/abs/astro-ph/9906318