Search Results - "Gudmundsson, E. H."

Energy Injection Episodes in Gamma-Ray Bursts: The Light Curves and Polarization Properties of GRB 021004 by Björnsson, G, Gudmundsson, E. H, Jóhannesson, G

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Lyα and ultraviolet emission from high-redshift gamma-ray burst hosts : to what extent do gamma-ray bursts trace star formation? by JAKOBSSON, P, BJÖRNSSON, G, GOROSABEL, J, GUDMUNDSSON, E. H, FYNBO, J. P. U, JOHANNESSON, G, HJORTH, J, THOMSEN, B, MØLLER, P, WATSON, D, JENSEN, B. L, ÖSTLIN, G

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Numerical counterparts of GRB host galaxies by Courty, S., Björnsson, G., Gudmundsson, E. H.

“…We explore galaxy properties in general and properties of host galaxies of gamma-ray bursts (GRBs) in particular, using N-body/Eulerian hydrodynamic…”
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Thomas-Fermi Calculations of Atoms and Matter in Magnetic Neutron Stars. II. Finite Temperature Effects by Thorolfsson, A, Rögnvaldsson, Ö. E, Yngvason, J, Gudmundsson, E. H

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Probing gamma-ray burst environments with time variability: ULTRASPEC fast imaging of GRB 080210 by De Cia, A., Jakobsson, P., Björnsson, G., Vreeswijk, P. M., Dhillon, V. S., Marsh, T. R., Chapman, R., Fynbo, J. P. U., Ledoux, C., Littlefair, S. P., Malesani, D., Schulze, S., Smette, A., Zafar, T., Gudmundsson, E. H.

“…We present high time resolution (1.09 s) photometry of GRB 080210 obtained with ULTRASPEC mounted on the ESO/3.6-m telescope, starting 68.22 min after the…”
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Depletion of background galaxies owing to the cluster lens CL0024+1654: U- and R-band observations by Rögnvaldsson, Ö. E., Greve, T. R., Hjorth, J., Gudmundsson, E. H., Sigmundsson, V. S., Jakobsson, P., Jaunsen, A. O., Christensen, L. L., van Kampen, E., Taylor, A. N.

“…We have obtained U- and R-band observations of the depletion of background galaxies resulting from the gravitational lensing of the galaxy cluster CL0024+1654…”
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Afterglow Light Curves and Broken Power Laws: A Statistical Study by Jóhannesson, Gudlaugur, Björnsson, Gunnlaugur, Gudmundsson, Einar H

“…In gamma-ray burst research, it is quite common to fit the afterglow light curves with a broken power law to interpret the data. We apply this method to a…”
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Ly+ and ultraviolet emission from high-redshift gamma-ray burst hosts: to what extent do gamma-ray bursts trace star formation? by Jakobsson, P., Björnsson, G., Fynbo, J. P. U., Jóhannesson, G., Hjorth, J., Thomsen, B., Møller, P., Watson, D., Jensen, B. L., Östlin, G., Gorosabel, J., Gudmundsson, E. H.

“…We report the result of a search for Lyα emission from the host galaxies of the gamma-ray bursts (GRBs) 030226 (z= 1.986), 021004 (z= 2.335) and 020124 (z=…”
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Ly+ and ultraviolet emission from high-redshift gamma-ray burst hosts: to what extent do gamma-ray bursts trace star formation? by Jakobsson, P., Björnsson, G., Fynbo, J. P. U., Jóhannesson, G., Hjorth, J., Thomsen, B., Møller, P., Watson, D., Jensen, B. L., Östlin, G., Gorosabel, J., Gudmundsson, E. H.

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Sensitivity of model calculations to uncertain inputs, with an application to neutron star envelopes by Epstein, R. I., Gudmundsson, E. H., Pethick, C. J.

“…A method is given for determining the sensitivity of certain types of calculations to the uncertainties in the input physics or model parameters; this method…”
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Energy Injection in Gamma-Ray Burst Afterglow Models by Jóhannesson, Gudlaugur, Björnsson, Gunnlaugur, Gudmundsson, Einar H

“…We extend the standard fireball model, widely used to interpret gamma-ray burst (GRB) afterglow light curves, to include energy injections and apply the model…”
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Numerical counterparts of GRB host galaxies by Courty, S., Björnsson, G., Gudmundsson, E. H.

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Cosmological observations in a closed universe by Björnsson, Gunnlaugur, Gudmundsson, Einar H.

“…We investigate how a closed Friedmann-Robertson-Walker universe would appear to astronomers living at different cosmic epochs. For this purpose we apply the…”
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Probing GRB environments with time variability: ULTRASPEC fast imaging of GRB 080210 by De Cia, A, Jakobsson, P, Björnsson, G, Vreeswijk, P. M, Dhillon, V. S, Marsh, T. R, Chapman, R, Fynbo, J. P. U, Ledoux, C, Littlefair, S. P, Malesani, D, Schulze, S, Smette, A, Zafar, T, Gudmundsson, E. H

“…Mon. Not. Roy. Astron. Soc. 412 (2011) 2229-2240 We present high time resolution (1.09 s) photometry of GRB 080210 obtained with ULTRASPEC mounted on the…”
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Probing gammaaray burst environments with time variability: ULTRASPEC fast imaging of GRB 080210 by De Cia, A, Jakobsson, P, BjAPGrnsson, G, Vreeswijk, P M, Dhillon, V S, Marsh, T R, Chapman, R, Fynbo, JPU, Ledoux, C, Littlefair, S P, Malesani, D, Schulze, S, Smette, A, Zafar, T, Gudmundsson, E H

“…We present high time resolution (1.09s) photometry of GRB080210 obtained with ULTRASPEC mounted on the ESO/3.6-m telescope, starting 68.22 min after the burst…”
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The classical cosmological tests applied to world models with pressure by GUDMUNDSSON, E. H, ROÊGNVALDSSON, Ö. E

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Dark Energy and the Observable Universe by Gudmundsson, Einar H, Björnsson, Gunnlaugur

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Host galaxies of gamma-ray bursts and their cosmological evolution by Courty, Stéphanie, Björnsson, Gunnlaugur, Gudmundsson, Einar H.

“…ABSTRACT We use numerical simulations of large‐scale structure formation to explore the cosmological properties of gamma‐ray burst (GRB) host galaxies. Among…”
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Depletion of background galaxies owing to the cluster lens CL0024+1654: U- and R-band observations by Rögnvaldsson, Ö. E., Greve, T. R., Hjorth, J., Gudmundsson, E. H., Sigmundsson, V. S., Jakobsson, P., Jaunsen, A. O., Christensen, L. L., Van Kampen, E., Taylor, A. N.

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Energy Injection Episodes in Gamma Ray Bursts: The Light Curves and Polarization Properties of GRB 021004 by Bjornsson, G, Gudmundsson, E. H, Johannesson, G

“…Astrophys.J. 615 (2004) L77-L80 Several GRB afterglow light curves deviate strongly from the power law decay observed in most bursts. We show that these…”
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