Now showing items 1-6 of 6

    • Detection of new optical counterpart candidates to psr b1951+32 with hst/wfpc2 

      Butler, R. F.; Golden, A.; Shearer, A. (EDP Sciences, 2002-11-18)
      There remain several definitive gamma-ray pulsars that are as yet undetected in the optical regime. A classic case is the pulsar PSR B1951+32, associated with the complex CTB 80 SNR. Previous ground based high speed 2-d ...
    • Gamma-ray observations of the be/pulsar binary 1a 0535+262 during a giant x-ray outburst 

      Acciari, V. A.; Aliu, E.; Araya, M.; Arlen, T.; Aune, T.; Beilicke, M.; Benbow, W.; Bradbury, S. M.; Buckley, J. H.; Bugaev, V.; Byrum, K.; Cannon, A.; Cesarini, A.; Ciupik, L.; Collins-Hughes, E.; Cui, W.; Dickherber, R.; Duke, C.; Falcone, A.; Finley, J. P.; Fortson, L.; Furniss, A.; Galante, N.; Gall, D.; Godambe, S.; Griffin, S.; Guenette, R.; Gyuk, G.; Hanna, D.; Holder, J.; Hughes, G.; Hui, C. M.; Humensky, T. B.; Imran, A.; Kaaret, P.; Kertzman, M.; Krawczynski, H.; Krennrich, F.; Madhavan, A. S.; Maier, G.; Majumdar, P.; McArthur, S.; Moriarty, P.; Ong, R. A.; Otte, A. N.; Pandel, D.; Park, N.; Perkins, J. S.; Pohl, M.; Prokoph, H.; Quinn, J.; Ragan, K.; Reyes, L. C.; Reynolds, P. T.; Roache, E.; Rose, H. J.; Saxon, D. B.; Sembroski, G. H.; Şentürk, G. D.; Smith, A. W.; Tešić, G.; Theiling, M.; Thibadeau, S.; Varlotta, A.; Vincent, S.; Vivier, M.; Wakely, S. P.; Ward, J. E.; Weekes, T. C.; Weinstein, A.; Weisgarber, T.; Weng, S.; Williams, D. A.; Wood, M.; Zitzer, B. (IOP Publishing, 2011-05-11)
      Giant X-ray outbursts, with luminosities of about 10(37) erg s(-1), are observed roughly every five years from the nearby Be/pulsar binary 1A 0535+262. In this article, we present observations of the source with VERITAS ...
    • Observation of extended very high energy emission from the supernova remnant ic 443 with veritas 

      Acciari, V. A.; Aliu, E.; Arlen, T.; Aune, T.; Bautista, M.; Beilicke, M.; Benbow, W.; Bradbury, S. M.; Buckley, J. H.; Bugaev, V.; Butt, Y.; Byrum, K.; Cannon, A.; Celik, O.; Cesarini, A.; Chow, Y. C.; Ciupik, L.; Cogan, P.; Colin, P.; Cui, W.; Daniel, M. K.; Dickherber, R.; Duke, C.; Dwarkadas, V. V.; Ergin, T.; Fegan, S. J.; Finley, J. P.; Finnegan, G.; Fortin, P.; Fortson, L.; Furniss, A.; Gall, D.; Gibbs, K.; Gillanders, G. H.; Godambe, S.; Grube, J.; Guenette, R.; Gyuk, G.; Hanna, D.; Hays, E.; Holder, J.; Horan, D.; Hui, C. M.; Humensky, T. B.; Imran, A.; Kaaret, P.; Karlsson, N.; Kertzman, M.; Kieda, D.; Kildea, J.; Konopelko, A.; Krawczynski, H.; Krennrich, F.; Lang, M. J.; LeBohec, S.; Maier, G.; McCann, A.; McCutcheon, M.; Millis, J.; Moriarty, P.; Ong, R. A.; Otte, A. N.; Pandel, D.; Perkins, J. S.; Pohl, M.; Quinn, J.; Ragan, K.; Reyes, L. C.; Reynolds, P. T.; Roache, E.; Rose, H. J.; Schroedter, M.; Sembroski, G. H.; Smith, A. W.; Steele, D.; Swordy, S. P.; Theiling, M.; Toner, J. A.; Valcarcel, L.; Varlotta, A.; Vassiliev, V. V.; Vincent, S.; Wagner, R. G.; Wakely, S. P.; Ward, J. E.; Weekes, T. C.; Weinstein, A.; Weisgarber, T.; Williams, D. A.; Wissel, S.; Wood, M.; Zitzer, B. (IOP Publishing, 2009-06-01)
      We present evidence that the very high energy (VHE, E > 100 GeV) gamma-ray emission coincident with the supernova remnant IC 443 is extended. IC 443 contains one of the best studied sites of supernova remnant/molecular ...
    • Optical polarimetry of the crab nebula 

      Moran, Paul; Shearer, Andy; Mignani, Roberto (Cambridge University Press (CUP), 2011-09-01)
      Time-resolved polarisation measurements of pulsars provide an unique insight into the geometry of the emission regions. Hubble Space Telescope (HST) polarisation data of the Crab Nebula were obtained from the Multimission ...
    • The spectrum of tev gamma rays from the crab nebula 

      Hillas, A. M.; Akerlof, C. W.; Biller, S. D.; Buckley, J. H.; Carter‐Lewis, D. A.; Catanese, M.; Cawley, M. F.; Fegan, D. J.; Finley, J. P.; Gaidos, J. A.; Krennrich, F.; Lamb, R. C.; Lang, M. J.; Mohanty, G.; Punch, M.; Reynolds, P. T.; Rodgers, A. J.; Rose, H. J.; Rovero, A. C.; Schubnell, M. S.; Sembroski, G. H.; Vacanti, G.; Weekes, T. C.; West, M.; Zweerink, J. (IOP Publishing, 1998-08-20)
      The spectrum of gamma rays from the Crab Nebula has been measured in the energy range 500 GeV-8 TeV at the Whipple Observatory by the atmospheric Cerenkov technique. Two methods of analysis that were used to derive spectra, ...
    • Very high‐energy observations of psr b1951+32 

      Srinivasan, R.; Boyle, P. J.; Buckley, J. H.; Carter‐Lewis, D. A.; Catanese, M.; Cawley, M. F.; Colombo, E.; Fegan, D. J.; Finley, J. P.; Gaidos, J. A.; Gordo, J. Bussons; Hillas, A. M.; Krennrich, F.; Lamb, R. C.; Lessard, R. W.; McEnery, J. M.; Moriarty, P.; Quinn, J.; Rose, H. J.; Samuelson, F. W.; Sembroski, G.; Weekes, T. C.; Wilson, C.; Zweerink, J. (IOP Publishing, 1997-11-01)
      PSR B1951 + 32 is a gamma-ray pulsar detected by the Energetic Gamma Ray Experiment Telescope (EGRET) and identified with the 39.5 ms radio pulsar in the supernova remnant CTB 80. The pulsar energy spectrum is consistent ...