Global ETD Search

41	Pair plasmas in astrophysics Baring, Matthew Geoffrey January 1988 (has links) No description available. 523.01 Gamma-ray burst sources
42	The derivation of radiation flux parameters from thermoluminescent dosimetry measurements in mixed neutron/gamma ray fields Wells, C. January 1986 (has links) No description available. 539.7 Gamma ray dosimeter study
43	The application of parallel processing techniques in coded aperture imaging Duncan, Stephen Howard January 1992 (has links) No description available. 005 Gamma-ray astronomical imaging
44	Coded aperture imaging with a HURA coded aperture and a discrete pixel detector Byard, Kevin January 1989 (has links) No description available. 523.01 Galactic gamma ray astronomy
45	The theory of pre-equilibrium processes in nuclear reactions Chadwick, Mark Benjamin January 1989 (has links) No description available. 539.7 Nucleon and gamma ray emission
46	THE AFTERGLOW AND EARLY-TYPE HOST GALAXY OF THE SHORT GRB 150101B AT z = 0.1343 Fong, W., Margutti, R., Chornock, R., Berger, E., Shappee, B. J., Levan, A. J., Tanvir, N. R., Smith, N., Milne, P. A., Laskar, T., Fox, D. B., Lunnan, R., Blanchard, P. K., Hjorth, J., Wiersema, K., van der Horst, A. J., Zaritsky, D. 14 December 2016 (has links) We present the discovery of the X-ray and optical afterglows of the short-duration GRB 150101B, pinpointing the event to an early-type host galaxy at z = 0.1343 +/- 0.0030. This makes GRB 150101B the most nearby short gamma-ray burst (GRB) with an early-type host galaxy discovered to date. Fitting the spectral energy distribution of the host galaxy results in an inferred stellar mass of approximate to 7 x 10(10) M-circle dot, stellar population age of approximate to 2-2.5 Gyr, and star formation rate of less than or similar to 0.4M(circle dot) yr(-1). The host of GRB 150101B is one of the largest and most luminous short GRB host galaxies, with a B-band luminosity of approximate to 4.3L(*) and half-light radius of approximate to 8 kpc. GRB 150101B is located at a projected distance of 7.35 +/- 0.07. kpc from its host center and lies on a faint region of its host rest-frame optical light. Its location, combined with the lack of associated supernova, is consistent with an NS-NS/NS-BH merger progenitor. From modeling the evolution of the broadband afterglow, we calculate isotropic-equivalent gamma-ray and kinetic energies of approximate to 1.3 x 10(49) erg and approximate to(6-14) x 10(51) erg, respectively, a circumburst density of approximate to(0.8-4) x 10(-5) cm(-3), and a jet opening angle of greater than or similar to 9 degrees. Using observations extending to approximate to 30 days, we place upper limits of less than or similar to(2-4) x 10(41) erg s(-1) on associated kilonova emission. We compare searches following previous short GRBs to existing kilonova models and demonstrate the difficulty of performing effective kilonova searches from cosmological short GRBs using current ground-based facilities. We show that at the Advanced LIGO/VIRGO horizon distance of 200 Mpc, searches reaching depths of approximate to 23-24 AB. mag are necessary to probe a meaningful range of kilonova models. gamma-ray burst: individual (150101B)
47	The study of quasi-periodic oscillations from soft gamma repeaters / Kettner, Joanne. January 2007 (has links) No description available. Neutron stars. Gamma ray bursts.
48	A search for ultra high energy gamma ray emission from binary X-ray systems Edwards, Philip Gregory. January 1988 (has links) (PDF) Includes abstract. Bibliography: leaves (8-1)-(8-10) Gamma ray sources Double stars
49	A study of the optical afterglows of gamma-ray bursts Tam, Pak-hin. January 2005 (has links) Thesis (M. Phil.)--University of Hong Kong, 2005. / Title proper from title frame. Also available in printed format. Gamma ray bursts. Afterglow (Physics)
50	Simulation model for the time delay and broadening of gamma raybursts 陳浩然, Chan, Ho-yin. January 1995 (has links) published_or_final_version / Physics / Master / Master of Philosophy Gamma ray bursts - Simulation methods.

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