Inefficient star formation through turbulence, magnetic fields and feedback

C Federrath - Monthly Notices of the Royal Astronomical Society, 2015 - academic.oup.com
Star formation is inefficient. Only a few per cent of the available gas in molecular clouds
forms stars, leading to the observed low star formation rate (SFR). The same holds when …

Gravity or turbulence?–III. Evidence of pure thermal Jeans fragmentation at∼ 0.1 pc scale

A Palau, J Ballesteros-Paredes… - Monthly Notices of …, 2015 - academic.oup.com
We combine previously published interferometric and single-dish data of relatively nearby
massive dense cores that are actively forming stars to test whether their 'fragmentation …

Gravity, magnetic field, and turbulence: Relative importance and impact on fragmentation in the infrared dark cloud G34. 43+ 00.24

YW Tang, PM Koch, N Peretto, G Novak… - The Astrophysical …, 2019 - iopscience.iop.org
We investigate the interplay between magnetic (B) field, gravity, and turbulence in the
fragmentation process of cores within the filamentary infrared dark cloud G34. 43+ 00.24 …

The Galactic Faraday depth sky revisited

S Hutschenreuter, TA Enßlin - Astronomy & Astrophysics, 2020 - aanda.org
Context. The Galactic Faraday depth sky is a tracer for both the Galactic magnetic field and
the thermal electron distribution. It was previously reconstructed from polarimetric …

Gravity or turbulence?–IV. Collapsing cores in out-of-virial disguise

J Ballesteros-Paredes… - Monthly Notices of …, 2018 - academic.oup.com
We study the dynamical state of massive cores by using a simple analytical model, an
observational sample, and numerical simulations of collapsing massive cores. From the …

Magnetic suppression of turbulence and the star formation activity of molecular clouds

M Zamora-Avilés, E Vázquez-Semadeni… - Monthly Notices of …, 2018 - academic.oup.com
We present magnetohydrodynamic simulations aimed at studying the effect of the magnetic
suppression of turbulence (generated through various instabilities during the formation of …

Interstellar Polarization Survey. IV. Characterizing the magnetic field strength and turbulent dispersion using optical starlight polarization in the diffuse interstellar …

Y Angarita, MJF Versteeg, M Haverkorn… - The Astronomical …, 2024 - iopscience.iop.org
Angular dispersion functions are typically used to estimate the fluctuations in polarization
angle around the mean magnetic field orientation in dense regions, such as molecular …

Energy budget of forming clumps in numerical simulations of collapsing clouds

V Camacho, E Vázquez-Semadeni… - The Astrophysical …, 2016 - iopscience.iop.org
We analyze the physical properties and energy balance of density enhancements in two
SPH simulations of the formation, evolution, and collapse of giant molecular clouds. In the …

Structure and expansion law of H ii regions in structured molecular clouds

M Zamora-Avilés, E Vázquez-Semadeni… - Monthly Notices of …, 2019 - academic.oup.com
We present radiation-magnetohydrodynamic simulations aimed at studying evolutionary
properties of H ii regions in turbulent, magnetized, and collapsing molecular clouds formed …

Supernova-regulated ISM. V. Space and time correlations

JF Hollins, GR Sarson, A Shukurov… - The Astrophysical …, 2017 - iopscience.iop.org
We apply correlation analysis to random fields in numerical simulations of the supernova-
driven interstellar medium (ISM) with the magnetic field produced by dynamo action. We …