@Article{SartorioVanFalWooNet:2019:EfPhFe,
author = "Sartorio, Nina Sanches and Vandenbroucke, B. and
Falceta-Gon{\c{c}}alves, Diego and Wood, K. and Neto, E.",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {University
of St Andrews} and {Instituto Nacional de Pesquisas Espaciais
(INPE)} and {University of St Andrews} and {Harvard-Smithsonian
Center for Astrophysics}",
title = "Massive star formation via torus accretion: the effect of
photoionization feedback",
journal = "Monthly Notices of the Royal Astronomical Society",
year = "2019",
volume = "486",
number = "4",
pages = "5171--5183",
month = "July",
keywords = "radiative transfer, methods: numerical, stars: massive, H II
regions, accretion discs.",
abstract = "The formation of massive stars is a longstanding problem. Although
a number of theories of massive star formation exist, ideas appear
to converge to a disc-mediated accretion scenario. Here, we
present radiative hydrodynamic simulations of a star-accreting
mass via a disc embedded in a torus. We use a Monte Carlo based
radiation hydrodynamics code to investigate the impact that
ionizing radiation has on the torus. Ionized regions in the torus
midplane are found to be either gravitationally trapped or in
pressure-driven expansion depending on whether or not the size of
the ionized region exceeds a critical radius. Trapped H II regions
in the torus plane allow accretion to progress, while expanding H
II regions disrupt the accretion torus preventing the central star
from aggregating more mass, thereby setting the stars final mass.
We obtain constraints for the luminosities and torus densities
that lead to both scenarios.",
doi = "10.1093/mnras/stz1187",
url = "http://dx.doi.org/10.1093/mnras/stz1187",
issn = "0035-8711 and 1365-2966",
language = "en",
targetfile = "sartorio.pdf",
urlaccessdate = "24 abr. 2024"
}