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Results: 40
Detailed multi-wavelength modelling of the dark GRB 140713A and its host galaxy
Adam Higgins, Alexander van der Horst, Rhaana Starling, Gemma Anderson, D. A. Perley, Hendrik Van Eerten, K. Wiersema, P. Jakobsson, C. Kouveliotou, Gavin P. Lamb, Nial R. Tanvir
Apr 21, 2019
We investigate the afterglow of GRB 140713A, a gamma-ray burst (GRB) that was detected and relatively well sampled at X-ray and radio wavelengths, but was not present at optical and near-infrared wavelengths, despite searches...
Detailed multi-wavelength modelling of the dark GRB 140713A and its host galaxy
Adam Higgins, Alexander van der Horst, Rhaana Starling, Gemma Anderson, D. A. Perley, Hendrik Van Eerten, K. Wiersema, P. Jakobsson, C. Kouveliotou, Gavin P. Lamb, Nial R. Tanvir
Apr 21, 2019
We investigate the afterglow of GRB 140713A, a gamma-ray burst (GRB) that was detected and relatively well sampled at X-ray and radio wavelengths, but was not present at optical and near-infrared wavelengths, despite searches...
Two major accretion epochs in M31 from two distinct populations of globular clusters.
Dougal Mackey, Geraint F Lewis, Brendon J Brewer, Annette MN Ferguson, Jovan Veljanoski, Avon P Huxor, Michelle LM Collins, Patrick Côté, Rodrigo A Ibata, Mike J Irwin, Nicolas Martin, Alan W McConnachie, Jorge Peñarrubia, Nial Tanvir, Zhen Wan
Nov 07, 2019
Large galaxies grow through the accumulation of dwarf galaxies1,2. In principle it is possible to trace this growth history via the properties of a galaxy's stellar halo3-5. Previous investigations of the galaxy Messier 31 (M31...
Tuning tempered transitions
Abstract: The method of tempered transitions was proposed by Neal (Stat. Comput. 6:353–366, 1996) for tackling the difficulties arising when using Markov chain Monte Carlo to sample from multimodal distributions. In...
Improving power posterior estimation of statistical evidence
The statistical evidence (or marginal likelihood) is a key quantity in Bayesian statistics, allowing one to assess the probability of the data given the model under investigation. This paper focuses on refining the power...
Improving power posterior estimation of statistical evidence
The statistical evidence (or marginal likelihood) is a key quantity in Bayesian statistics, allowing one to assess the probability of the data given the model under investigation. This paper focuses on refining the power...
Tuning tempered transitions
Abstract: The method of tempered transitions was proposed by Neal (Stat. Comput. 6:353–366, 1996) for tackling the difficulties arising when using Markov chain Monte Carlo to sample from multimodal distributions. In...
COVID-19
The recent pandemic named COVID-19 has led to a worldwide panic as a consequence of its deadly nature. This pandemic has a catastrophic impact on the hospitality area, one of the world’s largest sectors that changed the...
Published by: IGI Global Scientific Publishing
Understanding the influences on successful quality improvement in emergency general surgery
Timothy J Stephens, Jonathan R Bamber, Ian J Beckingham, Ellie Duncan, Nial F Quiney, John F Abercrombie, Graham Martin, Chole-QuIC collaborator group
May 13, 2019
BACKGROUND: Acute gallstone disease is the highest volume Emergency General Surgical presentation in the UK. Recent data indicate wide variations in the quality of care provided across the country, with national guidance for...
Breakthrough collaborative evaluation Gallstone disease Normalisation process theory Quality Improvement service improvement Acute Disease Attitude of Health Personnel Case-Control Studies Cholecystectomy Cooperative Behavior Emergency Service hospital Gallstones Humans leadership Patient Care Team Prospective Studies Quality Improvement Time-to-Treatment United Kingdom
Customer Satisfaction Model
In the service industry, one of the main challenges is to provide customer satisfaction. Though the number of budget hotel in Bangladesh is increasing, but customer satisfaction of these hotels are still ignored. The aim of the...
Business and Management Hospitality Travel and Tourism Management Hospitality Travel & Tourism Management
Published by: IGI Global Scientific Publishing
Impact of Intermediary and Seller Trust on Consumer Repurchase and E-WOM Intentions
This study investigates the impact of intermediary and seller trust on consumers' repurchase intention and electronic word-of-mouth (e-WOM) intention. A total of 337 consumers with online-buying experience were surveyed using a...
Published by: IGI Global Scientific Publishing
Effect of evidence updates on key determinants of measles vaccination impact
Han Fu, Kaja Abbas, Petra Klepac, Kevin van Zandvoort, Hira Tanvir, Allison Portnoy, Mark Jit
Jan 07, 2022
BACKGROUND: Model-based estimates of measles burden and the impact of measles-containing vaccine (MCV) are crucial for global health priority setting. Recently, evidence from systematic reviews and database analyses have...
GRB 080517
E. R. Stanway, A. J. Levan, N. Tanvir, K. Wiersema, A. Van Der Horst, C. G. Mundell, C. Guidorzi
Dec 10, 2014
Effect of evidence updates on key determinants of measles vaccination impact
Han Fu, Kaja Abbas, Petra Klepac, Kevin van Zandvoort, Hira Tanvir, Allison Portnoy, Mark Jit
Nov 22, 2021
BACKGROUND: Model-based estimates of measles burden and the impact of measles-containing vaccine (MCV) are crucial for global health priority setting. Recently, evidence from systematic reviews and database analyses have...
GRB 080517
E. R. Stanway, A. J. Levan, N. Tanvir, K. Wiersema, A. Van Der Horst, C. G. Mundell, C. Guidorzi
Dec 10, 2014
A Reverse Shock and Unusual Radio Properties in GRB 160625B
Kate D. Alexander, Tanmoy Laskar, E. Berger, C. Guidorzi, S. Dichiara, W. F. Fong, A. Gomboc, S. Kobayashi, D. Kopac, C. G. Mundell, N. R. Tanvir
Oct 12, 2017
We present multi-wavelength observations and modeling of the exceptionally bright long $\gamma$-ray burst GRB 160625B. The optical and X-ray data are well-fit by synchrotron emission from a collimated blastwave with an opening...
A Reverse Shock and Unusual Radio Properties in GRB 160625B
Kate D. Alexander, Tanmoy Laskar, E. Berger, C. Guidorzi, S. Dichiara, W. F. Fong, A. Gomboc, S. Kobayashi, D. Kopac, C. G. Mundell, N. R. Tanvir
Oct 12, 2017
We present multi-wavelength observations and modeling of the exceptionally bright long $\gamma$-ray burst GRB 160625B. The optical and X-ray data are well-fit by synchrotron emission from a collimated blastwave with an opening...
New constraints on gamma-ray burst jet geometry and relativistic shock physics
C. Guidorzi, C. G. Mundell, R. Harrison, R. Margutti, V. Sudilovsky, B. A. Zauderer, S. Kobayashi, A. Cucchiara, A. Melandri, S. B. Pandey, E. Berger, D. Bersier, V. D'Elia, A. Gomboc, J. Greiner, J. Japelj, D. Kopac, B. Kumar, D. Malesani, C. J. Mottram, P. T. O'brien, A. Rau, R. J. Smith, I. A. Steele, N. R. Tanvir, F. Virgili
Feb 11, 2014
GRB 180418A
A. Rouco Escorial, W. Fong, P. Veres, T. Laskar, A. Lien, K. Paterson, M. Lally, P. K. Blanchard, A. E. Nugent, N. R. Tanvir, D. Cornish, E. Berger, E. Burns, S. B. Cenko, B. E. Cobb, A. Cucchiara, A. Goldstein, R. Margutti, B. D. Metzger, P. Milne, A. Levan, M. Nicholl, Nathan Smith
May 10, 2021
We present X-ray and multiband optical observations of the afterglow and host galaxy of GRB 180418A, discovered by Swift/BAT and Fermi/GBM. We present a reanalysis of the GBM and BAT data deriving durations of the prompt...
GRB 180418A
A. Rouco Escorial, W. Fong, P. Veres, T. Laskar, A. Lien, K. Paterson, M. Lally, P. K. Blanchard, A. E. Nugent, N. R. Tanvir, D. Cornish, E. Berger, E. Burns, S. B. Cenko, B. E. Cobb, A. Cucchiara, A. Goldstein, R. Margutti, B. D. Metzger, P. Milne, A. Levan, M. Nicholl, Nathan Smith
May 10, 2021
We present X-ray and multiband optical observations of the afterglow and host galaxy of GRB 180418A, discovered by Swift/BAT and Fermi/GBM. We present a reanalysis of the GBM and BAT data deriving durations of the prompt...
New constraints on gamma-ray burst jet geometry and relativistic shock physics
C. Guidorzi, C. G. Mundell, R. Harrison, R. Margutti, V. Sudilovsky, B. A. Zauderer, S. Kobayashi, A. Cucchiara, A. Melandri, S. B. Pandey, E. Berger, D. Bersier, V. D'Elia, A. Gomboc, J. Greiner, J. Japelj, D. Kopac, B. Kumar, D. Malesani, C. J. Mottram, P. T. O'brien, A. Rau, R. J. Smith, I. A. Steele, N. R. Tanvir, F. Virgili
Feb 11, 2014
New constraints on the physical conditions in H2-bearing GRB-host damped Lyman-alpha absorbers
K.E Heintz, Jan Bolmer, Cedric Ledoux, P. Noterdaeme, J.K Krogager, J.P.U. Fynbo, P. Jakobsson, S. Covino, V. D'Elia, M. De Pasquale, D.H. Hartmann, L. Izzo, J. Jupelj, D.A. Kann, L. Kaper, P. Petitjean, A. Rossi, R. Salvaterra, Patricia Schady, J. Selsing, R. Starling, N.R. Tanvir, C.C. Thoene, A. de Ugarte Postigo, S.D. Vergani, D. Watson, K. Wiersema, T. Zafar
Sep 30, 2019
New constraints on the physical conditions in H2-bearing GRB-host damped Lyman-alpha absorbers
K.E Heintz, Jan Bolmer, Cedric Ledoux, P. Noterdaeme, J.K Krogager, J.P.U. Fynbo, P. Jakobsson, S. Covino, V. D'Elia, M. De Pasquale, D.H. Hartmann, L. Izzo, J. Jupelj, D.A. Kann, L. Kaper, P. Petitjean, A. Rossi, R. Salvaterra, Patricia Schady, J. Selsing, R. Starling, N.R. Tanvir, C.C. Thoene, A. de Ugarte Postigo, S.D. Vergani, D. Watson, K. Wiersema, T. Zafar
Sep 30, 2019
GRB 160410A
J F Agüí fernández, C C Thöne, D A Kann, A De ugarte postigo, J Selsing, P Schady, R M Yates, J Greiner, S R Oates, D B Malesani, D Xu, A Klotz, S Campana, A Rossi, D A Perley, M Blažek, P D’avanzo, A Giunta, D Hartmann, K E Heintz, P Jakobsson, C C Kirkpatrick iv, C Kouveliotou, A Melandri, G Pugliese, R Salvaterra, R L C Starling, N R Tanvir, S D Vergani, K Wiersema
Jan 16, 2023
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 farthest...
Athena synergies in the multi-messenger and transient universe
L Piro, M Ahlers, A Coleiro, M Colpi, E de Oña Wilhelmi, M Guainazzi, PG Jonker, PM Namara, DA Nichols, P O’Brien, E Troja, J Vink, J Aird, L Amati, S Anand, E Bozzo, FJ Carrera, AC Fabian, C Fryer, E Hall, O Korobkin, V Korol, A Mangiagli, S Martínez-Núñez, S Nissanke, J Osborne, P Padovani, EM Rossi, G Ryan, A Sesana, G Stratta, N Tanvir, H van Eerten
Oct 10, 2022
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