Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Neil Vaytet"'
Systematic underestimation of uncertainties by widespread neutron-scattering data-reduction software
Publikováno v:
Journal of Neutron Research. :1-20
Data-reduction software used at neutron-scattering facilities around the world, Mantid and Scipp, ignore correlations when propagating uncertainties in arithmetic operations. Normalization terms applied during data-reduction frequently have a lower d
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2022, 658, pp.A52. ⟨10.1051/0004-6361/202037479⟩
Astronomy and Astrophysics-A&A, 2022, 658, pp.A52. ⟨10.1051/0004-6361/202037479⟩
We study mass accretion and ejection in the vicinity of massive star forming cores using high-resolution (5 au) 3D AMR numerical simulations. We investigate the mechanisms at the origin of outflows and characterise the properties of the disc forming
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b15831787d933a644177fe4644b57997
https://hal.science/hal-03550143/document
https://hal.science/hal-03550143/document
Scipp is heavily inspired by the Python library xarray. It enriches raw NumPy-like multi-dimensional arrays of data by adding named dimensions and associated coordinates. Multiple arrays are combined into datasets. On top of this, scipp introduces (i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38bfb9e11213d1269eed5220dbf22bdf
Autor:
Neil Vaytet, Daniele Galli, Troels Haugbølle, T. Grassi, Marco Padovani, Barbara Ercolano, Jon P. Ramsey
Publikováno v:
Grassi, T, Padovani, M, Ramsey, J P, Galli, D, Vaytet, N, Ercolano, B & Haugbolle, T 2019, ' The challenges of modelling microphysics: ambipolar diffusion, chemistry, and cosmic rays in MHD shocks ', Monthly Notices of the Royal Astronomical Society, vol. 484, no. 1, pp. 161-184 . https://doi.org/10.1093/mnras/sty3519
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society
From molecular clouds to protoplanetary disks, non-ideal magnetic effects are important in many astrophysical environments. Indeed, in star and disk formation processes, it has become clear that these effects are critical to the evolution of the syst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b334db42615111588829c55b65f74055
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2019, 486 (4), pp.5197-5215. ⟨10.1093/mnras/stz1214⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2019, 486 (4), pp.5197-5215. ⟨10.1093/mnras/stz1214⟩
Monthly Notices of the Royal Astronomical Society, 2019, 486 (4), pp.5197-5215. ⟨10.1093/mnras/stz1214⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2019, 486 (4), pp.5197-5215. ⟨10.1093/mnras/stz1214⟩
The complexity of physico-chemical models of star formation is increasing, with models that take into account new processes and more realistic setups. These models allow astrochemists to compute the evolution of chemical species throughout star forma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c209609bea986cd1c8ff279b3e67f3d6
https://hal.science/hal-02130758/file/stz1214.pdf
https://hal.science/hal-02130758/file/stz1214.pdf
Autor:
Robin Woracek, Jonas Nilsson, Matthew D. Jones, Thomas Arnold, P. M. Kadletz, Michael Hart, Neil Vaytet, Tobias Richter, Owen Arnold, Oliver Löhmann, Andrew Jackson, Regine von Klitzing, Luca Silvi
Publikováno v:
Review of Scientific Instruments. 91:125111
The European Spallation Source (ESS), which is under construction in Lund (Sweden), will be the next leading neutron facility with an unprecedented brilliance and novel long-pulse time structure. A long-pulse source not only provides a high time-aver
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2018, 615, ⟨10.1051/0004-6361/201732075⟩
Astronomy and Astrophysics-A&A, 2018, 615, ⟨10.1051/0004-6361/201732075⟩
The transport of angular momentum is capital during the formation of low-mass stars; too little removal and rotation ensures stellar densities are never reached, too much and the absence of rotation means no protoplanetary disks can form. Magnetic di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13a81ca687413b1a3c6151996cec99e1
https://hal-insu.archives-ouvertes.fr/insu-03711224/document
https://hal-insu.archives-ouvertes.fr/insu-03711224/document
Publikováno v:
Journal of Quantitative Spectroscopy and Radiative Transfer
Radiative shocks are shocks in a gas where the radiative energy and flux coming from the very hot post-shock material are non-negligible in the shock's total energy budget, and are often large enough to heat the material ahead of the shock. Many simu
Autor:
Benoît Commerçon, Gilles Chabrier, J. Masson, Neil Vaytet, Patrick Hennebelle, Pierre Marchand
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2016, 592, ⟨10.1051/0004-6361/201526780⟩
Astronomy & Astrophysics
Astronomy and Astrophysics-A&A, 2016, 592, ⟨10.1051/0004-6361/201526780⟩
Astronomy & Astrophysics
We develop a detailed chemical network relevant to the conditions characteristic of prestellar core collapse. We solve the system of time-dependent differential equations to calculate the equilibrium abundances of molecules and dust grains, with a si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::feb61b3a2707c81912224d4e997d1106
http://arxiv.org/abs/1604.05613
http://arxiv.org/abs/1604.05613
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 420:2271-2279
We present the first detailed spatio-kinematical analysis and modelling of the planetary nebula Shapley 1 (Sp 1), which is known to contain a close-binary central star system. Close-binary central stars have been identified as a likely source of shap