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Using resistive magnetohydrodynamics simulations, the propagation of protostellar jets, the formation of circumstellar discs and the configuration of magnetic fields are investigated from the prestellar cloud phase until $\sim$500 yr after…

Solar and Stellar Astrophysics · Physics 2020-01-08 Masahiro N. Machida , Shingo Hirano , Hideyuki Kitta

The fact that physical conservation laws can be derived from symmetry properties of space and time, as shown by Emily N\"other, has been utilized in predicting the development of the round turbulent jet from the jet exit to the far field.…

Fluid Dynamics · Physics 2025-09-11 Preben Buchhave , Mengjia Ren , Clara Marika Velte

Elongated jets from young stellar objects typically present a nodular structure, formed by a chain of bright knots of enhanced emission with individual proper motions. Though it is generally accepted that internal shocks play an important…

Astrophysics · Physics 2009-11-13 F. Rubini , S. Lorusso , L. Del Zanna , F. Bacciotti

Rotating outflows from protostellar disks might trace extended magneto-hydrodynamic (MHD) disk winds (DWs), providing a solution to the angular momentum problem in disk accretion for star formation. In the jet system HH 212, a rotating…

Astrophysics of Galaxies · Physics 2021-02-10 Chin-Fei Lee , Benoit Tabone , Sylvie Cabrit , Claudio Codella , Linda Podio , Ferreira , J. , Jacquemin-Ide , J

This paper describes a multidimensional hydrodynamic code which can be used for the studies of relativistic astrophysical flows. The code solves the special relativistic hydrodynamic equations as a hyperbolic system of conservation laws…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Orhan Donmez , Refik Kayali

Jet interactions in a hot QCD medium created in heavy-ion collisions are conventionally assessed by measuring the modification of the distributions of jet observables with respect to the proton-proton baseline. However, the steeply falling…

High Energy Physics - Phenomenology · Physics 2021-04-01 Yi-Lun Du , Daniel Pablos , Konrad Tywoniuk

Previous experimental studies have shown that when a layer of solid particles is explosively dispersed, the particles often develop a non-uniform spatial distribution. The instabilities within the particle bed and at the particle layer…

Fluid Dynamics · Physics 2015-05-30 David L. Frost , Yann Grégoire , Sam Goroshin , Fan Zhang

We present a search for outflows towards 51 submillimetre cores in Perseus. With consistently derived outflow properties from a large homogeneous dataset within one molecular cloud we can investigate further the mass dependence and time…

Astrophysics · Physics 2009-11-13 J. Hatchell , G. A. Fuller , J. S. Richer

Molecular dynamics simulations have been performed on pure liquid water, aqueous solutions of sodium chloride, and polymer solutions exposed to a strong external electric field with the goal to gain molecular insight into the structural…

Soft Condensed Matter · Physics 2016-08-08 I. Nezbeda , J. Jirsák , F. Moučka , W. R. Smith

We present results of a series of magnetohydrodynamic (MHD) and hydro- dynamic (HD) 2.5D simulations of the morphology of outflows driven by nested wide-angle winds - i.e. winds which eminate from a central star as well as from an orbiting…

Solar and Stellar Astrophysics · Physics 2014-11-20 Timothy J. Dennis , Adam Frank , Eric G. Blackman , Orsola DeMarco , Bruce Balick , Sorin Mitran

The spectra of several galaxies, including extremely metal-poor galaxies (EMPGs) from the EMPRESS survey, have shown that the abundances of some Si-group elements differ from "spherical" explosion models of massive stars. This leads to the…

High Energy Astrophysical Phenomena · Physics 2024-10-21 Shing-Chi Leung , Ken'ichi Nomoto

Molecular outflows in the form of wide-angle winds and/or well-collimated jets are associated with young stellar objects of all luminosities. Independent studies have established that the mass outflow rate is proportional to L_bol^0.6 for…

Astrophysics · Physics 2009-11-11 D. S. Shepherd

Numerical simulation of high-speed turbulent water jets in air and its validation with experimental data has not been reported in the literature. It is therefore aimed to simulate the physics of these high-speed water jets and compare the…

Fluid Dynamics · Physics 2010-03-23 Anirban Guha , Ronald M. Barron , Ram Balachandar

The morphologies of detected jets in X-ray binaries are almost as diverse as their number. This is due to different jet properties and ambient media that these jets encounter. It is important to understand the physics of these objects and…

High Energy Astrophysical Phenomena · Physics 2011-07-07 Manel Perucho

We characterize the molecular environment of candidate massive young stellar objects (MYSOs) signposted by methanol masers. Single pixel observations of 10 transitions of HCO^+, CO and CS isotopomers were carried out, using the IRAM 30m…

Astrophysics · Physics 2009-11-13 M. Szymczak , A. Bartkiewicz , A. M. S. Richards

We study the long-term evolution of relativistic jets in collapsars and examine the effects of viewing angle on the subsequent gamma ray bursts. We carry out a series of high-resolution simulations of a jet propagating through a stellar…

Astrophysics · Physics 2011-02-11 Brian J. Morsony , Davide Lazzati , Mitchell C. Begelman

Jets are identified and their properties studied in center-of-mass energy sqrt(s) = 7 TeV proton-proton collisions at the Large Hadron Collider using charged particles measured by the ATLAS inner detector. Events are selected using a…

High Energy Physics - Experiment · Physics 2015-03-19 ATLAS Collaboration

We investigate potential models that could explain why multiple proto-stellar systems predominantly show single jets. During their formation, stars most frequently produce energetic outflows and jets. However, binary jets have only been…

Astrophysics · Physics 2010-11-26 G. C. Murphy , T. Lery , S. O'Sullivan , D. Spicer , F. Bacciotti , A. Rosen

The presence of two-dimensional coherent structures in the near-field of the round jet has been established by several experimental investigations and direct Navier-Stokes simulations (DNS). Their study has a great importance to improve the…

Fluid Dynamics · Physics 2024-06-19 Philippe Reynier , Hieu Ha Minh

We study rapidly-rotating Boussinesq convection driven by internal heating in a full sphere. We use a numerical model based on the quasi-geostrophic approximation for the velocity field, whereas the temperature field is three-dimensional.…

Fluid Dynamics · Physics 2017-09-05 Céline Guervilly , Philippe Cardin
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