Results 51 to 60 of about 44,022 (216)

DESTRUCTION OF THE INTERSTELLAR CLOUDS BY THESHOCK WAVES

open access: yesOdessa Astronomical Publications, 2008
We study the influence of the interstellar cloud structure irregularity on the dynamics of its destruction by a supernova shock wave. It is shown that irregular clouds are destroyed twice quickly as the spherical ones.
E. E. Matvienko, Yu. A. Shchekinov
doaj   +1 more source

Dynamical evolution of a supernova driven turbulent interstellar medium [PDF]

open access: yesProceedings of the International Astronomical Union, 2006
AbstractIt is shown that a number of key observations of the Galactic ISM can be understood, if it is treated as a highly compressible and turbulent medium, energized predominantly by supernova explosions (and stellar winds). We have performed extensive numerical high resolution 3D hydrodynamical and magnetohydrodynamical simulations with adaptive mesh
Breitschwerdt, Dieter   +1 more
openaire   +3 more sources

What Is Space Bioethics?

open access: yesBioethics, EarlyView.
ABSTRACT Classical bioethics examines moral issues in terrestrial medicine and the life sciences. According to Konrad Szocik, space bioethics merely relocates those questions to harsher environments. We argue that this view is incomplete: space bioethics is a genuinely original domain.
Maurizio Balistreri
wiley   +1 more source

Implication of the Velocity Dispersion Scalings on High-mass Star Formation in Molecular Clouds

open access: yesThe Astronomical Journal
This paper is aimed at exploring the implications of velocity-dispersion scalings on high-mass star formation in molecular clouds, including the scalings of Larson’s linewidth–size ( σ – R ) and ratio–mass surface density ( ${ \mathcal L }$ – Σ; here ${ \
An-Xu Luo   +4 more
doaj   +1 more source

New solar modulation modeling of the galactic proton flux measured by the AMS02 and PAMELA experiments [PDF]

open access: yesEPJ Web of Conferences, 2019
A thorough understanding of solar effects on the galactic cosmic rays is relevant both to infer the local interstellar spectrum characteristics and to investigate the dynamics of charged particles in the heliosphere.
Fiandrini E.   +3 more
doaj   +1 more source

Molecular Dynamics Simulations of CO2 Formation in Interstellar Ices [PDF]

open access: yesThe Journal of Physical Chemistry A, 2013
35 pages, 6 ...
Arasa, Carina   +3 more
openaire   +3 more sources

The futuristic manifolds of REM sleep

open access: yesJournal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Since one of its first descriptions 70 years ago, rapid eye movement sleep has continually inspired and excited new generations of sleep researchers. Despite significant advancements in understanding its neurocircuitry, underlying mechanisms and microstates, many questions regarding its function, especially beyond the early neurodevelopment ...
Liborio Parrino, Ivana Rosenzweig
wiley   +1 more source

Cascading from the Winds to the Disk: The Universality of Supernovae-driven Turbulence in Different Galactic Interstellar Media

open access: yesThe Astrophysical Journal
Star-forming galaxies are in a state of turbulence, with one of the principle components of the turbulence sourced by the constant injection of momentum from supernovae (SNe) explosions. Utilizing high-resolution stratified, gravito-hydrodynamical models
Isabelle Connor   +3 more
doaj   +1 more source

Open problems and perspectives offered by current and future instruments

open access: yesEPJ Web of Conferences, 2012
We summarize recent observational and theoretical results and discuss the open challenges for astrochemistry and the promises offered by the current and upcoming instruments. Some of the main challenges are listed below. Characterization of the structure
Gérin M.
doaj   +1 more source

Ultrafast Vibrational Relaxation Dynamics in XUV-Excited Polycyclic Aromatic Hydrocarbon Molecules

open access: yesPhysical Review X, 2021
Unraveling ultrafast molecular processes initiated by energetic radiation provides direct information on the chemical evolution under extreme conditions.
A. Boyer   +8 more
doaj   +1 more source

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