Zobrazeno 1 - 10
of 648
pro vyhledávání: '"Lundman, P."'
The debate regarding the emission mechanism in gamma-ray bursts has been long-standing. Here, we study the spectral signatures of photospheric emission, accounting for subphotospheric dissipation by a radiation-mediated shock. The shocks are modeled
Externí odkaz:
http://arxiv.org/abs/2403.03529
Publikováno v:
Cardiovascular Diabetology, Vol 23, Iss 1, Pp 1-10 (2024)
Abstract Objective To explore trends in prognosis and use of glucose-lowering drugs (GLD) in patients with diabetes and coronary artery disease (CAD). Research design and methods All patients with diabetes and CAD undergoing a coronary angiography be
Externí odkaz:
https://doaj.org/article/cf5d95491c654b4586aaaa855a2ac234
Autor:
Ryde, Felix, Iyyani, Shabnam, Ahlgren, Björn, Peer, Asaf, Sharma, Vidushi, Lundman, Christoffer, Axelsson, Magnus
The physical processes of the gamma-ray emission and particle acceleration during the prompt phase in GRBs are still unsettled. In order to perform an unambiguous physical modelling of observations, a clear identification of the emission mechanism is
Externí odkaz:
http://arxiv.org/abs/2206.00680
Autor:
Lamb, Gavin P, Nativi, Lorenzo, Rosswog, Stephan, Kann, D. Alexander, Levan, Andrew, Lundman, Christoffer, Tanvir, Nial
Using the resultant profiles from 3D hydrodynamic simulations of relativistic jets interacting with neutron star merger wind ejecta, we show how the inhomogeneity of energy and velocity {across the jet surface profile} can alter the observed afterglo
Externí odkaz:
http://arxiv.org/abs/2201.09796
Shocks that occur below a gamma-ray burst (GRB) jet photosphere are mediated by radiation. Such radiation-mediated shocks (RMSs) could be responsible for shaping the prompt GRB emission. Although well studied theoretically, RMS models have not yet be
Externí odkaz:
http://arxiv.org/abs/2111.01810
Jets can become collimated as they propagate through dense environments and understanding such interactions is crucial for linking physical models of the environments to observations. In this work, we use 3D special-relativistic simulations to study
Externí odkaz:
http://arxiv.org/abs/2109.00814
We calibrate a neutrino transport approximation, called Advanced Spectral Leakage (ASL), with the purpose of modeling neutrino-driven winds in neutron star mergers. Based on a number of snapshots we gauge the ASL parameters by comparing against both
Externí odkaz:
http://arxiv.org/abs/2102.08882
We present the first ab initio simulation of a radiation-mediated shock emerging at the photosphere of a relativistic outflow. The simulation is performed using our code radshock that follows fluid dynamics coupled to time-dependent radiative transfe
Externí odkaz:
http://arxiv.org/abs/2012.01798
Autor:
Sofia Cederström, Pia Lundman, Joakim Alfredsson, Emil Hagström, Annica Ravn-Fischer, Stefan Söderberg, Troels Yndigegn, Per Tornvall, Tomas Jernberg
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-9 (2023)
Abstract Despite abundant knowledge about the relationship between inflammation and coronary atherosclerosis, it is still unknown whether systemic inflammation measured as high-sensitivity C-reactive protein (hsCRP) is associated with coronary athero
Externí odkaz:
https://doaj.org/article/3d1f793bb977408a9905683d6f30c1a2
Autor:
Jeremy S. Nayagam, Tobias J. Weismüller, Piotr Milkiewicz, Karolina M. Wronka, Emil Bik, Christoph Schramm, Katja Fuessel, Taotao Zhou, Johannes Chang, Martti Färkkilä, Ylva Carlsson, Anastasia Lundman, Nora Cazzagon, Giorgia Corrà, Eirini Rigopoulou, George N. Dalekos, Aiva Lundberg Båve, Annika Bergquist, Karim Ben Belkacem, Marco Marzioni, Martina Mancinelli, Xavier Verhelst, Hanns-Ulrich Marschall, Michael A. Heneghan, Deepak Joshi
Publikováno v:
JHEP Reports, Vol 6, Iss 1, Pp 100951- (2024)
Background & Aims: Although worsening liver-related symptoms during pregnancy can occur in primary sclerosing cholangitis (PSC), there are insufficient data to effectively counsel patients on their pre-conception risk and no clear recommendations on
Externí odkaz:
https://doaj.org/article/42a14995d75e44aeb0e9eb445b2468cb