Zobrazeno 1 - 10
of 117
pro vyhledávání: '"Cunningham, Andrew J"'
Autor:
Healy, Sean, Cunningham, Andrew J
This book examines authoritarian practices in relation to humanitarian negotiations. Utilising a wide variety of perspectives and examining a range of contexts, the book considers how humanitarians assess and engage with authoritarian practices and n
Externí odkaz:
https://library.oapen.org/handle/20.500.12657/90389
Most gas in giant molecular clouds is relatively low-density and forms star inefficiently, converting only a small fraction of its mass to stars per dynamical time. However, star formation models generally predict the existence of a threshold density
Externí odkaz:
http://arxiv.org/abs/1902.00934
We present a large suite of simulations of the formation of low-mass star clusters. Our simulations include an extensive set of physical processes -- magnetohydrodynamics, radiative transfer, and protostellar outflows -- and span a wide range of viri
Externí odkaz:
http://arxiv.org/abs/1709.01277
Autor:
Fielding, Drummond B., McKee, Christopher F., Socrates, Aristotle, Cunningham, Andrew J., Klein, Richard I.
Publikováno v:
Monthly Notices of the Royal Astronomical Society 2015 450 (3): 3306-3318
The turbulent environment from which stars form may lead to misalignment between the stellar spin and the remnant protoplanetary disk. By using hydrodynamic and magnetohydrodynamic simulations, we demonstrate that a wide range of stellar obliquities
Externí odkaz:
http://arxiv.org/abs/1409.5148
In regions of star formation, protostars and newborn stars accrete mass from their natal clouds. These clouds are threaded by magnetic fields with a strength characterized by the plasma beta---the ratio of thermal and magnetic pressures. Observations
Externí odkaz:
http://arxiv.org/abs/1401.7010
Publikováno v:
In Journal of Archaeological Science: Reports June 2019 25:584-599
Autor:
Myers, Andrew T., McKee, Christopher F., Cunningham, Andrew J., Klein, Richard I., Krumholz, Mark R.
We present a set of 3-dimensional, radiation-magnetohydrodynamic calculations of the gravitational collapse of massive (300 Msun), star-forming molecular cloud cores. We show that the combined effects of magnetic fields and radiative feedback strongl
Externí odkaz:
http://arxiv.org/abs/1211.3467
Autor:
Cunningham, Andrew J., McKee, Christopher F., Klein, Richard I., Krumholz, Mark R., Teyssier, Romain
We have carried out a numerical study of the effect of large scale magnetic fields on the rate of accretion from a uniform, isothermal gas onto a resistive, stationary point mass. Only mass, not magnetic flux, accretes onto the point mass. The simula
Externí odkaz:
http://arxiv.org/abs/1201.0816
We report the results of a series of AMR radiation-hydrodynamic simulations of the collapse of massive star forming clouds using the ORION code. These simulations are the first to include the feedback effects protostellar outflows, as well as protost
Externí odkaz:
http://arxiv.org/abs/1104.1218