STARFORGE: the effects of protostellar outflows on the IMF [PDF]
Monthly notices of the Royal Astronomical Society, 2020 The initial mass function (IMF) of stars is a key quantity affecting almost every field of astrophysics, yet it remains unclear what physical mechanisms determine it.
D. Guszejnov +4 more
semanticscholar +1 more source
Three-dimensional MHD simulation of interplanetary magnetic field changes at 1 AU as a consequence of simulated solar flares [PDF]
Annales Geophysicae, 1996 A fully three-dimensional (3D), time-dependent, MHD interplanetary global model (3D IGM) has been used, for the first time, to study the relationship between different forms of solar activity and transient variations of the north-south component, Bz ...
C.-C. Wu, M. Dryer, S. T. Wu
doaj +1 more source
Star formation in Perseus. IV. Mass dependent evolution of dense cores [PDF]
, 2008 In our SCUBA survey of Perseus, we find that the fraction of protostellar cores increases towards higher masses and the most massive cores are all protostellar.
Fuller, Gary, Hatchell, Jennifer
core +3 more sources
The cosmic evolution of the IMF under the Jeans conjecture with implications for massive galaxies [PDF]
, 2012 We examine the cosmic evolution of a stellar initial mass function (IMF) in galaxies that varies with the Jeans mass in the interstellar medium, paying particular attention to the Kband stellar mass to light ratio (M/LK) of present-epoch massive galaxies.
D. Narayanan, R. Dav'e
semanticscholar +1 more source
The Kinematics of Massive Quiescent Galaxies at 1.4 < z < 2.1: Dark Matter Fractions, IMF Variation, and the Relation to Local Early-type Galaxies [PDF]
Astrophysical Journal, 2020 We study the dynamical properties of massive quiescent galaxies at 1.4 < z < 2.1 using deep Hubble Space Telescope WFC3/F160W imaging and a combination of literature stellar velocity dispersion measurements and new near-infrared spectra obtained using ...
J. Mendel +12 more
semanticscholar +1 more source
Calibrated, cosmological hydrodynamical simulations with variable IMFs III: spatially resolved properties and evolution [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 Recent spatially-resolved observations of massive early-type galaxies (ETGs) have uncovered evidence for radial gradients of the stellar initial mass function (IMF), ranging from super-Salpeter IMFs in the centre to Milky Way-like beyond the half-light radius, $r_e$.
Barber, C.R., Schaye, J., Crain, R.A.
openaire +3 more sources
Variation of the High-mass Slope of the Stellar Initial Mass Function: Theory Meets Observations
The Astrophysical Journal, 2023 We present observational evidence of a correlation between the high-mass slope of the stellar initial mass function (IMF) in young star clusters and their stellar surface density, σ _* .
Sami Dib
doaj +1 more source
Recovery of the low- and high-mass end slopes of the IMF in massive early-type galaxies using detailed elemental abundances [PDF]
Monthly notices of the Royal Astronomical SocietyStar formation in the early Universe has left its imprint on the chemistry of observable stars in galaxies. We derive elemental abundances and the slope of the low-mass end of the initial mass function (IMF) for a sample of 25 very massive galaxies ...
M. D. Brok +5 more
semanticscholar +1 more source
Metals, 2019 The current study observed a grain structure evolution in the central part and periphery of the sample of an Al–Mg–Mn-based alloy during isothermal multidirectional forging (IMF) at 350 °C with a cumulative strain of 2.1–6.3 and a ...
Anastasia V. Mikhaylovskaya +4 more
doaj +1 more source
Irreversibility of regime shifts in the North Sea
Frontiers in Marine Science, 2022 Human impacts can induce ecosystems to cross tipping points and hence unexpected and sudden changes in ecosystem services that are difficult or impossible to reverse. The world´s oceans suffer from cumulative anthropogenic pressures like overexploitation
Camilla Sguotti +12 more
doaj +1 more source