Browsing by Author "Xu, D."

Now showing items 1-10 of 10

    • Are short y-ray bursts collimated GRB 050709, a flare but no break 

      Watson, D.; Hjorth, J.; Jakobsson, P.; Xu, D.; Fynbo, J.; Sollerman, J.; Thone, C.C.; Pedersen, K. (2006)
      Context. From the small sample of afterglow lightcurves of short duration γ-ray bursts (GRBs), the decays are rapid, roughly following a power-law in time. It has been assumed that the afterglow emission in short GRBs is ...

    • Early spectroscopic identification of SN 2008D 

      Malesani, D.; Fynbo, J.; Hjorth, J.; Leloudas, G.; Sollerman, J.; Stritzinger, M.; Vreeswijk, P.M.; Watson, D.; Gorosabel, J.; Michalowski, M.; Thone, C.C.; Augusteijn, T.; Bersier, D.; Jakobsson, P.; Jaunsen, A.O.; Ledoux, C.; Levan, A.; Milvang-Jensen, B.; Rol, E.; Tanvir, N.; Wiersema, K.; Xu, D. (2009)
      SN 2008D was discovered while following up an unusually bright X-ray transient (XT) in the nearby spiral galaxy NGC 2770. We present early optical spectra (obtained 1.75 days after the XT) which allowed the first identification ...

    • An extremely luminous panchromatic outburst from the nucleus of a distant galaxy 

      Levan, Andrew; Tanvir, Nial; Cenko, S.B.; Perley, D.A.; Wiersema, K.; Bloom, J.S.; Fruchter, A.S.; Postigo, A.; O'Brien, O.T.; Butler, N.R.; van der Horst, A.J.; Leloudas, G.; Morgan, A.N.; Misra, K.; Bower, G.C.; Farihi, J.; Tunnicliffe, R.L.; Modjaz, M.; Silverman, J.M.; Hjorth, J.; Thone, C.C.; Cucchiara, A.; Ceron, J.M.C.; Castro-Tirado, A.J.; Arnold, J.A.; Bremer, M.; Brodie, J.P.; Carroll, T.; Cooper, M.C.; Curran, P.; Cutri, R.M.; Ehle, J.; Forbes, D.; Fynbo, J.; Gorosabel, J.; Graham, J.; Hoffman, D.I.; Guziy, S.; Jakobsson, Pall; Kamble, A.P.; Kerr, T.H.; Kasliwal, M.M.; Kouveliotou, C.; Kocevski, D.; Law, N.M.; Nugent, P.; Ofek, E.O.; Poznanski, D.; Quimby, R.M.; Rol, E.; Romanowsky, A.J.; Sanchez-Ramirez, R.; Schulze, S.; Singh, N.; Van Spaandonk, Lieke; Starling, R.L.; Strom, R.G.; Tello, J.C.; Vaduvescu, O.; Wheatley, P.J.; Wijers, R.A.M.J.; Winters, J.M.; Xu, D. (2011)
      Variable x-ray and gamma-ray emission is characteristic of the most extreme physical processes in the universe. We present multiwavelength observations of a unique gamma-ray-selected transient detected by the Swift satellite, ...

    • GRB 160410a: The first chemical study of the interstellar medium of a short GRB 

      Fernández, J. F. Agüí; Thöne, C. C.; Kann, D. A.; Postigo, A. de Ugarte; Selsing, J.; Schady, P.; Yates, R. M.; Greiner, J.; Oates, S. R.; Malesani, D.; Xu, D.; Klotz, A.; Campana, S.; Rossi, A.; Perley, D. A.; Blazek, M.; D'Avanzo, P.; Giunta, A.; Hartmann, D.; Heintz, K. E.; Jakobsson, P.; C., C. Kirkpatrick IV; Kouveliotou, C.; Melandri, A.; Pugliese, G.; Salvaterra, R.; Starling, R. L. C.; Tanvir, N. R.; Vergani, S. D.; Wiersema, K. (2023-03-01)
      Short gamma-ray bursts (SGRBs) are produced by the coalescence of compact binary systems which are remnants of massive stars. GRB 160410A is classified as a short-duration GRB with extended emission and is currently the ...

    • An improved three-step search block-matching algorithm for low bit-rate video coding applications 

      Xu, D.; Bailey, C.; Sotudeh, R. (Institute of Electrical and Electronics Engineers (IEEE), 1998)

    • Massive stars formed in atomic hydrogen reservoirs : HI observations of gamma-ray burst host galaxies 

      Michałowski, Michał J.; Gentile, G.; Hjorth, J.; Krumholz, M. R.; Tanvir, N. R.; Kamphuis, P.; Burlon, D.; Baes, M.; Basa, S.; Berta, S.; Ceron, J. M. Castro; Crosby, D.; D'Elia, V.; Elliott, J.; Greiner, J.; Hunt, L. K.; Klose, S.; Koprowski, M. P.; Floc'h, E. Le; Malesani, D.; Murphy, T.; Guelbenzu, A. Nicuesa; Palazzi, E.; Rasmussen, J.; Rossi, A.; Savaglio, S.; Schady, P.; Sollerman, J.; Postigo, A. de Ugarte; Watson, D.; Werf, P. van der; Vergani, S. D.; Xu, D. (2015-08-13)
      Long gamma-ray bursts (GRBs), among the most energetic events in the Universe, are explosions of massive and short-lived stars, so they pinpoint locations of recent star formation. However, several GRB host galaxies have ...

    • The nature of the x-ray flash of August 24 2005 

      Sollerman, J.; Fynbo, J.; Gorosabel, J.; Halpern, J.P.; Hjorth, J.; Jakobsson, P.; Mirabal, N.; Watson, D.; Xu, D.; Castro-Tirado, A.J.; Feron, C.; Jaunsen, A.O.; Jelinek, M.; Jensen, B.L.; Kann, D.A.; Ovaldsen, J-E.; Pozanenko, A.; Stritzinger, M.; Thoene, C.C.; de Ugarte Postigo, A.; Guziy, S.; Ibrahimov, M.; Jaervinen, S.P.; Levan, A.; Rumyantsev, V.; Tanvir, N. (2007)

    • The Short Gamma-Ray Burst Revolution 

      Hjorth, J.; Levan, A.; Tanvir, N.; Starling, R.L.; Klose, S.; Kouveliotou, C.; Feron, C.; Ferrero, P.; Fruchter, A.S.; Fynbo, J.; Gorosabel, J.; Jakobsson, P.; Kann, D.A.; Pedersen, K.; Ramirez-Ruiz, E.; Sollerman, J.; Thone, C.C.; Watson, D.; Wiersema, K.; Xu, D. (2006)

    • Spatially-resolved dust properties of the GRB 980425 host galaxy 

      Michałowski, Michał J.; Hunt, L. K.; Palazzi, E.; Savaglio, S.; Gentile, G.; Rasmussen, J.; Baes, M.; Basa, S.; Bianchi, S.; Berta, S.; Burlon, D.; Ceron, J. M. Castro; Covino, S.; Cuby, J. -G.; D'Elia, V.; Ferrero, P.; Gotz, D.; Hjorth, J.; Koprowski, M. P.; Borgne, D. Le; Floc'h, E. Le; Malesani, D.; Murphy, T.; Pian, E.; Piranomonte, S.; Sollerman, J.; Tanvir, N. R.; Postigo, A. de Ugarte; Watson, D.; Werf, P. van der; Vergani, S. D.; Xu, D. (2014-02-06)
      Gamma-ray bursts (GRBs) have been proposed as a tool for studying star formation in the Universe, so it is crucial to investigate whether their host galaxies and immediate environments are in any way special compared with ...

    • Supernova 2006aj and the associated X-Ray Flash 060218 

      Sollerman, J.; Jaunsen, A.O.; Fynbo, J.; Hjorth, J.; Jakobsson, P.; Stritzinger, M.; Feron, C.; Laursen, P.; Ovaldsen, J-E.; Selj, J.; Thone, C.C.; Xu, D.; Davis, T.M.; Gorosabel, J.; Watson, D.; Duro, R.; Ilyin, I.; Jensen, B.L.; Lysfjord, N.; Marquart, T.; Nielsen, T.B.; Naranen, J.; Schwarz, H.E.; Walch, S.; Wold, M.; Ostlin, G. (2006)