Zobrazeno 1 - 10
of 343
pro vyhledávání: '"Pittard, J M"'
Autor:
Koumpia, Evgenia, Koutoulaki, M., de Wit, W. -J., Oudmaijer, R. D., Frost, A. J., Lumsden, S. L., Pittard, J. M.
With steady observational advances, the formation of massive stars is being understood in more detail. Numerical models are converging on a scenario where accretion discs play a key role. Direct observational evidence of such discs at a few au scales
Externí odkaz:
http://arxiv.org/abs/2211.13085
Autor:
Pittard, J. M.
We investigate the effect of mass-loading from embedded clouds on the evolution of wind-blown bubbles. We use 1D hydrodynamical calculations and assume that the clouds are numerous enough that they can be treated in the continuous limit, and that rap
Externí odkaz:
http://arxiv.org/abs/2207.03370
Publikováno v:
MNRAS 513, 2022, 3345
Using the adaptive mesh refinement code MG, we perform 3D hydrodynamic simulations of a supernova-cloud interaction in the "large cloud regime". The cloud is initially atomic and evolving due to the thermal instability (TI) and gravity. We study inte
Externí odkaz:
http://arxiv.org/abs/2205.06474
The wind collision region (WCR) in a colliding wind binary (CWB) is a particularly violent place, as such, it is surprising that it is also a region where significant quantities of interstellar dust can form. In extreme cases, approximately 30% of th
Externí odkaz:
http://arxiv.org/abs/2204.12354
Dust production is one of the more curious phenomena observed in massive binary systems with interacting winds. The high temperatures, UV photon flux and violent shocks should destroy any dust grains that condense. However, in some extreme cases dust
Externí odkaz:
http://arxiv.org/abs/2204.07397
We investigate the resolution dependence of HII regions expanding past their Str\"{o}mgren spheres. We find that their structure and size, and the radial momentum that they attain at a given time, is in good agreement with analytical expectations if
Externí odkaz:
http://arxiv.org/abs/2112.09013
Stellar winds are one of several ways that massive stars can affect the star formation process on local and galactic scales. In this paper we investigate the numerical resolution needed to inflate an energy-driven stellar wind bubble in an external m
Externí odkaz:
http://arxiv.org/abs/2107.14673
We present a model for the creation of non-thermal particles via diffusive shock acceleration in a colliding-wind binary. Our model accounts for the oblique nature of the global shocks bounding the wind-wind collision region and the finite velocity o
Externí odkaz:
http://arxiv.org/abs/2104.07399
Using the adaptive mesh refinement code MG, we perform hydrodynamic simulations of the interaction of a shock with a molecular cloud evolving due to thermal instability and gravity. To explore the relative importance of these processes, three case st
Externí odkaz:
http://arxiv.org/abs/2012.04546
The MHD version of the adaptive mesh refinement (AMR) code, MG, has been employed to study the interaction of thermal instability, magnetic fields and gravity through 3D simulations of the formation of collapsing cold clumps on the scale of a few par
Externí odkaz:
http://arxiv.org/abs/2011.01321