Now showing items 21-40 of 60

    • GRBs in Pulsar Wind Bubbles: Observational Implications 

      Guetta, D.; Granot, J. (Astronomical Society of the Pacific, 2004)
    • Hydrodynamics and radiation from a relativistic expanding jet with applications to GRB afterglow 

      Granot, J.; Miller, M.; Piran, T.; Suen, W. (American Institute of Physics (AIP), 2000)
      We describe fully relativistic three dimensional calculations of the slowing down and spreading of a relativistic jet by an external medium like the ISM. We calculate the synchrotron spectra and light curves using the ...
    • Images, light curves and spectra of GRB afterglow 

      Granot, J.; Piran, T.; Sari, R. (1999)
      We calculate the light curve and spectra near the peak and the self absorption break, for an adiabatic blast wave described by the Blandford-McKee solution, considering the emission from the whole region behind the shock ...
    • Impulsive acceleration of strongly magnetized relativistic flows 

      Granot, J.; Komissarov, S.S.; Spitkovsky, A. (2011)
      The strong variability of magnetic central engines of active galactic nuclei (AGNs) and gamma-ray bursts (GRBs) may result in highly intermittent strongly magnetized relativistic outflows. We find a new magnetic acceleration ...
    • An infrared ring around the magnetar SGR 1900+14 

      Wachter, S.; Ramirez-Ruiz, E.; Dwarkadas, V.V.; Kouveliotou, C.; Granot, J.; Patel, S.K.; Figer, D. (2008)
    • Is the Rapid Decay Phase from High Latitude Emission? 

      Genet, F.; Granot, J. (2009)
      There is good observationnal evidence that the Steep Decay Phase (SDP) that is observed in most Swift GRBs is the tail of the prompt emission. The most popular model to explain the SDP is Hight Latitude Emission (HLE). ...
    • Is the Rapid Decay Phase from High Latitude Emission? 

      Genet, F.; Granot, J. (American Institute of Physics (AIP), 2009)
      There is good observationnal evidence that the Steep Decay Phase (SDP) that is observed in most Swift GRBs is the tail of the prompt emission. The most popular model to explain the SDP is Hight Latitude Emission (HLE). ...
    • The Jet Angular Profile and the Afterglow Light Curves 

      Granot, J.; Kumar, P.; Piran, T. (2004)
    • Late-time observations of GRB 080319B: jet break, host galaxy and accompanying supernova 

      Tanvir, N.; Rol, E.; Levan, A.; Svensson, K.; Fruchter, A.S.; Granot, J.; O'Brien, P.T.; Wiersema, K.; Starling, R.L.; Jakobsson, P.; Fynbo, J.; Hjorth, J.; Curran, P.; van der Horst, A.J.; Kouveliotou, C.; Racusin, J.L.; Burrows, D.N.; Genet, F. (2010)
      The Swift-discovered GRB 080319B was by far the most distant source ever observed at naked-eye brightness, reaching a peak apparent magnitude of 5.3 at a redshift of z = 0.937. We present our late-time optical (Hubble Space ...
    • Light Curves from an Expanding Relativistic Jet 

      Granot, J.; Miller, M.; Piran, T.; Suen, W.; Hughes, P. (2001)
    • A limit on the variation of the speed of light arising from quantum gravity effects 

      Abdo, A.A.; Ackermann, M.; Ajello, M.; Asano, K.; Atwood, W.B.; Axelsson, M.; Baldini, L.; Ballet, J.; Barbiellini, G.; Baring, M. G.; Bastieri, D.; Bechtol, K.; Bellazzini, R.; Berenji, B.; Bhat, P.N.; Bissaldi, E.; Bloom, E. D.; Bonamente, E.; Bonnell, J.; Borgland, A.W.; Bouvier, A.; Bregeon, J.; Brez, A.; Briggs, M.S.; Brigida, M.; Bruel, P.; Burgess, J. M.; Burnett, T. H.; Caliandro, G.A.; Cameron, R.A.; Caraveo, P.A.; Casandjian, J.M.; Cecchi, C.; Celik, Oe; Chaplin, V.; Charles, E.; Cheung, C. C.; Chiang, J.; Ciprini, S.; Claus, R.; Cohen-Tanugi, J.; Cominsky, L. R.; Connaughton, V.; Conrad, J.; Cutini, S.; Dermer, C. D.; de Angelis, A.; de Palma, F.; Digel, S.W.; Dingus, B. L.; do couto silva, E.; Drell, P.S.; Dubois, R.; Dumora, D.; Farnier, C.; Favuzzi, C.; Fegan, S. J.; Finke, J.; Fishman, G.; Focke, W.B.; Foschini, L.; Fukazawa, Y.; Funk, S.; Fusco, P.; Gargano, F.; Gasparrini, D.; Gehrels, N.; Germani, S.; Gibby, L.; Giebels, B.; Giglietto, N.; Giordano, F.; Glanzman, T.; Godfrey, G.; Granot, J.; Greiner, J.; Grenier, I.A.; Grondin, M. -H.; Grove, J. E.; Grupe, D.; Guillemot, L.; Guiriec, S.; Hanabata, Y.; Harding, A. K.; Hayashida, M.; Hays, E.; Hoversten, E. A.; Hughes, R.E.; Johannesson, G.; Johnson, A.S.; Johnson, R. P.; Johnson, W. N.; Kamae, T.; Katagiri, H.; Kataoka, J.; Kawai, N.; Kerr, M.; Kippen, R.M.; Knoedlseder, J.; Kocevski, D.; Kouveliotou, C.; Kuehn, F.; Kuss, M.; Lande, J.; Latronico, L.; Lemoine-Goumard, M.; Longo, F.; Loparco, F.; Lott, B.; Lovellette, M. N.; Lubrano, P.; Madejski, G. M.; Makeev, A.; Mazziotta, M.N.; McBreen, S.; McEnery, J.E.; McGlynn, S.; Meszaros, P.; Meurer, C.; Michelson, P.F.; Mitthumsiri, W.; Mizuno, T.; Moiseev, A.A.; Monte, C.; Monzani, M.E.; Moretti, E.; Morselli, A.; Moskalenko, I.V.; Murgia, S.; Nakamori, T.; Nolan, P.L.; Norris, J.P.; Nuss, E.; Ohno, M.; Ohsugi, T.; Omodei, N.; Orlando, E.; Ormes, J. F.; Ozaki, M.; Paciesas, W. S.; Paneque, D.; Panetta, J. H.; Parent, D.; Pelassa, V.; Pepe, M.; Pesce-Rollins, M.; Petrosian, V.; Piron, F.; Porter, T.A.; Preece, R.; Raino, S.; Ramirez-Ruiz, E.; Rando, R.; Razzano, M.; Razzaque, S.; Reimer, A.; Reimer, O.; Reposeur, T.; Ritz, S.; Rochester, L. S.; Rodriguez, A. Y.; Roth, M.; Ryde, F.; Sadrozinski, H.F.W.; Sanchez, D.; Sander, A.; Parkinson, P. M. Saz; Scargle, J. D.; Schalk, T. L.; Sgro, C.; Siskind, E.J.; Smith, D. A.; Smith, P.D.; Spandre, G.; Spinelli, P.; Stamatikos, M.; Stecker, F. W.; Strickman, M.S.; Suson, D. J.; Tajima, H.; Takahashi, H.; Takahashi, T.; Tanaka, T.; Thayer, J. B.; Thayer, J.G.; Thompson, D.J.; Tibaldo, L.; Toma, K.; Torres, D.F.; Tosti, G.; Troja, E.; Uchiyama, Y.; Uehara, T.; Usher, T.L.; van der Horst, A. J.; Vasileiou, V.; Vilchez, N.; Vitale, V.; von Kienlin, A.; Waite, A.P.; Wang, P.; Wilson-Hodge, C.; Winer, B.L.; Wood, K.S.; Wu, X. F.; Yamazaki, R.; Ylinen, T.; Ziegler, M. (2009-11-19)
      A cornerstone of Einstein's special relativity is Lorentz invariance-the postulate that all observers measure exactly the same speed of light in vacuum, independent of photon-energy. While special relativity assumes that ...
    • The long rapid decay phase of the extended emission from the short GRB 080503 

      Genet, F.; Butler, N.R.; Granot, J. (2010)
      GRB 080503 was classified as a short gamma-ray burst (GRB) with extended emission. The origin of such extended emission (found in about a quarter of Swift short GRBs) is still unclear and may provide some clues to the ...
    • Magnetar twists: Fermi/Gamma-Ray Burst Monitor detection of SGR J1550-5418 

      Kaneko, Y.; Gogus, E.; Kouveliotou, C.; Granot, J.; Ramirez-Ruiz, E.; van der Horst, A.J.; Watts, A.L.; Finger, M.H.; Gehrels, N.; Pe'er, A.; van der Klis, M.; von Kienlin, A.; Wachter, S.; Wilson-Hodge, C.A.; Woods, P.M. (2010)
      SGR J1550-5418 (previously known as AXP 1E 1547.0-5408 or PSR J1550-5418) went into three active bursting episodes in 2008 October and in 2009 January and March, emitting hundreds of typical soft gamma repeater bursts in ...
    • Magnetic field decay in neutron stars : from soft gamma repeaters to weak-field magnetars' 

      Dall'Osso, S.; Granot, J.; Piran, T. (2012-06)
      The recent discovery of the weak-field, old magnetar soft gamma repeater (SGR) J0418+5729, whose dipole magnetic field, Bdip, is less than 7.5 x 10(12) G, has raised perplexing questions: how can the neutron star produce ...
    • A mildly relativistic radio jet from the otherwise normal type Ic supernova 2007gr 

      Paragi, Z.; Taylor, G.B.; Kouveliotou, C.; Granot, J.; Ramirez-Ruiz, E.; Bietenholz, M.; van der Horst, A.J.; Pidopryhora, Y.; van Langevelde, H.J.; Garrett, M.A.; Szomoru, A.; Argo, M.K.; Bourke, S.; Paczynski, B. (2010)
      Type Ic supernovae have drawn attention since 1998 owing to their sparse association with long duration γ-ray bursts (GRBs). Although the GRB central engine generates ultra-relativistic jets, no relativistic outflows have ...
    • The missing link : merging neutron stars naturally produce jet-like structures and can power short gamma-ray bursts 

      Rezzolla, L.; Giacomazzo, B.; Baiotti, L.; Granot, J.; Kouveliotou, C.; Aloy, M.A. (2011)
      Short gamma-ray Bursts (SGRBs) are among the most luminous explosions in the universe, releasing in less than one second the energy emitted by our Galaxy over one year. Despite decades of observations, the nature of their ...