Browsing by Author "Granot, Jonathan"

Now showing items 1-10 of 10

    • Burst and persistent emission properties during the recent active episode of the anomalous x-ray pulsar 1E 1841-045 

      Lin, Lin; Kouveliotou, Chryssa; Gogus, Ersin; van der Horst, Alexander J.; Watts, Anna L.; Baring, Matthew G.; Kaneko, Yuki; Wijers, Ralph A. M. J.; Woods, Peter M.; Barthelmy, Scott; Burgess, James Michael; Chaplin, Vandiver; Gehrels, Neil; Goldstein, Adam; Granot, Jonathan; Guiriec, Sylvain; Mcenery, Julie; Preece, Robert D.; Tierney, David; van der Klis, Michiel; von Kienlin, Andreas; Zhang, Shuang Nan (2011-10-10)
      The Swift/Burst Alert Telescope detected the first burst from 1E 1841-045 in 2010 May with intermittent burst activity recorded through at least 2011 July. Here we present Swift and Fermi/Gamma-ray Burst Monitor observations ...

    • Detection of high-energy gamma-ray emission during the X-ray flaring activity in GRB100728A 

      Abdo, A.A.; Ackermann, M.; Ajello, M.; Baldini, L.; Ballet, J.; Barbiellini, G.; Baring, M.G.; Bastieri, D.; Bechtol, K.; Bellazzini, R.; Berenji, B.; Bhat, P.N.; Bissaldi, E.; Blandford, R.; Bonamente, E.; Bonnell, I.; Borgland, A.W.; Bouvier, A.; Bregeon, J.; Brigida, M.; Bruel, P.; Buehler, R.; Buson, S.; Caliandro, G.A.; Cameron, R.A.; Caraveo, P.A.; Casandjian, J.M.; Cecchi, C.; Charles, E.; Chekhtman, A.; Chiang, J.; Ciprini, S.; Claus, R.; Connaughton, V.; Conrad, J.; Cutini, S.; de Angelis, A.; de Palma, F.; Dermer, C.; Silva, E.D.E.; Drell, P.S.; Dubois, R.; Favuzzi, C.; Fukazawa, Y.; Fusco, P.; Gargano, F.; Gehrels, N.; Germani, S.; Giglietto, N.; Giommi, P.; Giordano, F.; Giroletti, M.; Glanzman, T.; Godfrey, G.; Granot, Jonathan; Grenier, I.A.; Guiriec, S.; Hadasch, D.; Hanabata, Y.; Hughes, R.E.; Johannesson, G.; Johnson, A.S.; Kamae, T.; Katagiri, H.; Kataoka, J.; Kerr, M.; Knodlseder, J.; Kuss, M.; Lande, J.; Latronico, L.; Lee, S.H.; Longo, F.; Loparco, F.; Lott, B.; Lubrano, P.; Mazziotta, M.N.; McEnery, J.E.; Meszaros, P.; Michelson, P.F.; Mizuno, D.; Moiseev, A.A.; Monzani, M.E.; Morselli, A.; Moskalenko, I.V.; Murgia, S.; Nakamori, T.; Naumann-Godo, M.; Nolan, P.L.; Norris, J.P.; Nuss, E.; Ohsugi, T.; Okumura, A.; Omodei, N.; Orlando, E.; Paciesas, W.S.; Pelassa, V.; Pesce-Rollins, M.; Pierbattista, M.; Piron, F.; Porter, T.A.; Racusin, J.L.; Raino, S.; Razzano, M.; Razzaque, S.; Reimer, A.; Reimer, O.; Reyes, L.C.; Roth, M.; Sadrozinski, H.F.W.; Sgro, C.; Siskind, E.J.; Smith, P.D.; Sonbas, E.; Spandre, G.; Spinelli, P.; Stamatikos, M.; Strickman, M.S.; Takahashi, H.; Tanaka, T.; Tanaka, Y.; Thayer, J.G.; Torres, D.F.; Tosti, G.; Troja, E.; Uehara, T.; Usher, T.L.; Vandenbroucke, J.; Vasileiou, V.; Vianello, G.; Vilchez, N.; Vitale, V.; von Kienlin, A.; Waite, A.P.; Wang, P.; Winer, B.L.; Wood, K.S.; Yamazaki, R.; Yang, Z.; Ziegler, M.; Piro, L. (2011)
      We present the simultaneous Swift and Fermi observations of the bright GRB 100728A and its afterglow. The early X-ray emission is dominated by a vigorous flaring activity continuing until 1 ks after the burst. In the same ...

    • The effects of sub-shells in highly magnetized relativistic flows 

      Granot, Jonathan (2012-04)
      Astrophysical sources of relativistic jets or outflows, such as gamma-ray bursts (GRBs), active galactic nuclei (AGN) or micro-quasars, often show strong time variability. Despite such impulsive behaviour, most models of ...

    • Fermi/gamma-ray burst monitor observations of SGR J0501+4516 bursts 

      Lin, Lin; Kouveliotou, Chryssa; Baring, Matthew G.; van der Horst, Alexander J.; Guiriec, Sylvain; Woods, Peter M.; Gogus, Ersin; Kaneko, Yuki; Scargle, Jeffrey; Granot, Jonathan; Preece, Robert; von Kienlin, Andreas; Chaplin, Vandiver; Watts, Anna L.; Wijers, Ralph A. M. J.; Zhang, Shuang Nan; Bhat, Narayan; Finger, Mark H.; Gehrels, Neil; Harding, Alice; Kaper, Lex; Kaspi, Victoria; Mcenery, Julie; Meegan, Charles A.; Paciesas, William S.; Pe'er, Asaf; Ramirez-Ruiz, Enrico; van der Klis, Michiel; Wachter, Stefanie; Wilson-Hodge, Colleen (2011-10-01)
      We present our temporal and spectral analyses of 29 bursts from SGR J0501+4516, detected with the gamma-ray burst monitor on board the Fermi Gamma-ray Space Telescope during 13 days of the source's activation in 2008 (August ...

    • Gamma-ray burst dynamics and afterglow radiation from adaptive mesh refinement, special relativistic hydrodynamic simulations. 

      De Colle, Fabio; Granot, Jonathan; Lopez-Camara, Diego; Ramirez-Ruiz, Enrico (2012-02-20)
      We report on the development of Mezcal-SRHD, a new adaptive mesh refinement, special relativistic hydrodynamics (SRHD) code, developed with the aim of studying the highly relativistic flows in gamma-ray burst sources. The ...

    • Interaction of a highly magnetized impulsive relativistic flow with an external medium 

      Granot, Jonathan (2012)
      Important astrophysical sources, such as gamma-ray bursts (GRBs) or tidal disruption events, are impulsive -- strongly varying with time. These outflows are likely highly magnetized near the central source, but their ...

    • Limits on radioactive powered emission associated with a short-hard GRB 070724A in a star-forming galaxy 

      Kocevski, Daniel; Thone, Christina C.; Ramirez-Ruiz, Enrico; Bloom, Joshua S.; Granot, Jonathan; Butler, Nathaniel R.; Perley, Daniel A.; Modjaz, Maryam; Lee, William H.; Cobb, Bethany E.; Levan, Andrew J.; Tanvir, Nial; Covino, Stefano (2010-05-11)
      We present results of an extensive observing campaign of the short-duration, hard spectrum gamma-ray burst (GRB) 070724A, aimed at detecting the radioactively powered emission that might follow from a binary merger or ...

    • On the lateral expansion of gamma-ray burst jets 

      Granot, Jonathan; Piran, T. (2012-03)
      The dynamics of gamma-ray burst jets during the afterglow phase have an important effect on the interpretation of their observations and for inferring key physical parameters such as their true energy and event rate. ...

    • Scaling relations between numerical simulations and physical systems they represent 

      Granot, Jonathan (2012-04)
      The dynamical equations describing the evolution of a physical system generally have a freedom in the choice of units, where different choices correspond to different physical systems that are described by the same equations. ...

    • Simulations of gamma-ray burst jets in a stratified external medium : dynamics, afterglow light curves, jet breaks, and radio calorimetry 

      De Colle, Fabio; Ramirez-Ruiz, Enrico; Granot, Jonathan; Lopez-Camara, Diego (2012-05-20)
      The dynamics of gamma-ray burst (GRB) jets during the afterglow phase is most reliably and accurately modeled using hydrodynamic simulations. All published simulations so far, however, have considered only a uniform external ...