Diagnosing Turbulence in the Neutral and Molecular Interstellar Medium of Galaxies

B Burkhart - Publications of the Astronomical Society of the …, 2021 - iopscience.iop.org
Magnetohydrodynamic (MHD) turbulence is a crucial component of the current paradigms of
star formation, dynamo theory, particle transport, magnetic reconnection, and evolution of …

The life and times of giant molecular clouds

M Chevance, MR Krumholz, AF McLeod… - arXiv preprint arXiv …, 2022 - arxiv.org
Giant molecular clouds (GMCs) are the sites of star formation and stellar feedback in
galaxies. Their properties set the initial conditions for star formation and their lifecycles …

The Cygnus Allscale Survey of Chemistry and Dynamical Environments: CASCADE-Overview and first results toward DR20 from the Max Planck IRAM Observatory …

H Beuther, F Wyrowski, KM Menten, JM Winters… - Astronomy & …, 2022 - aanda.org
Context. While star formation on large molecular cloud scales and on small core and disk
scales has been investigated intensely over the past decades, the connection of the large …

Understanding star formation in molecular clouds-IV. Column density PDFs from quiescent to massive molecular clouds

N Schneider, V Ossenkopf-Okada, S Clarke… - Astronomy & …, 2022 - aanda.org
Probability distribution functions of the total hydrogen column density (N-PDFs) are a
valuable tool for distinguishing between the various processes (turbulence, gravity, radiative …

The star formation rate in the gravoturbulent interstellar medium

B Burkhart - The Astrophysical Journal, 2018 - iopscience.iop.org
Stars form in supersonic turbulent molecular clouds that are self-gravitating. We present an
analytic determination of the star formation rate (SFR) in a gravoturbulent medium based on …

Velocity gradients as a tracer for magnetic fields

DF González-Casanova, A Lazarian - The Astrophysical Journal, 2017 - iopscience.iop.org
Strong Alfvénic turbulence develops eddy-like motions perpendicular to the local direction of
magnetic fields. This local alignment induces velocity gradients perpendicular to the local …

Distribution of velocity gradient orientations: Mapping magnetization with the velocity gradient technique

A Lazarian, KH Yuen, KW Ho, J Chen… - The Astrophysical …, 2018 - iopscience.iop.org
Recent developments of the velocity gradient technique (VGT) show that the velocity
gradients provide a reliable tracing of the magnetic field direction in turbulent plasmas. In …

Understanding star formation in molecular clouds-II. Signatures of gravitational collapse of IRDCs

N Schneider, T Csengeri, RS Klessen… - Astronomy & …, 2015 - aanda.org
We analyse column density and temperature maps derived from Herschel dust continuum
observations of a sample of prominent, massive infrared dark clouds (IRDCs) ie G11. 11 …

The velocity statistics of turbulent clouds in the presence of gravity, magnetic fields, radiation, and outflow feedback

Y Hu, C Federrath, S Xu… - Monthly Notices of the …, 2022 - academic.oup.com
The interaction of turbulence, magnetic fields, self-gravity, and stellar feedback within
molecular clouds is crucial for understanding star formation. We study the effects of self …

The razor's edge of collapse: The transition point from lognormal to power-law distributions in molecular clouds

B Burkhart, K Stalpes, DC Collins - The Astrophysical Journal …, 2016 - iopscience.iop.org
We derive an analytic expression for the transitional column density value (${\eta} _ {t} $)
between the lognormal and power-law form of the probability distribution function (PDF) in …