Results 31 to 40 of about 51,739 (211)

PECULIARITIES OF MIXING METALS IN INTERGALACTIC AND INTERSTELLAR MEDIA

open access: yesOdessa Astronomical Publications, 2008
We review the current status of the problem of metal mixing in the intergalactic and interstellar media. We give simple arguments for inefficiency of mixing metals because of a saturation of hydrodynamic (Rayleigh-Taylor and Kelvin-Helmholz ...
S. Yu. Dedikov   +2 more
doaj   +1 more source

Ionize Hard: Interstellar PO+ Detection

open access: yesFrontiers in Astronomy and Space Sciences, 2022
We report the first detection of the phosphorus monoxide ion (PO+) in the interstellar medium. Our unbiased and very sensitive spectral survey toward the G+0.693–0.027 molecular cloud covers four different rotational transitions of this molecule, two of ...
Víctor M. Rivilla   +17 more
doaj   +1 more source

Two-component model of the interaction of an interstellar cloud with surrounding hot plasma

open access: yes, 2011
We present a two-component gasdynamic model of an interstellar cloud embedded in a hot plasma. It is assumed that the cloud consists of atomic hydrogen gas, interstellar plasma is quasineutral.
Baranov   +23 more
core   +2 more sources

Hierarchical structure of the interstellar molecular clouds and star formation

open access: yesOpen Astronomy, 2017
Properties of the hierarchical structures of interstellar molecular clouds are discussed. Particular attention is paid to the statistical correlations between velocity dispersion and size, and between the magnetic field strength and gas density.
Dudorov Alexander E.   +1 more
doaj   +1 more source

The Orientation of the Local Interstellar Magnetic Field

open access: yes, 2007
The orientation of the local interstellar magnetic field introduces asymmetries in the heliosphere that affect the location of heliospheric radio emissions and the streaming direction of ions from the termination shock of the solar wind.
Gombosi, T. I., Opher, M., Stone, E. C.
core   +1 more source

Energy Dissipation in Interstellar Cloud Collisions [PDF]

open access: yes, 1997
We present a study of the kinetic energy dissipation in interstellar cloud collisions. The main aim is to understand the dependence of the elasticity (defined as the ratio of the final to the initial kinetic energy of the clouds) on the velocity and mass
Andrea Ferrara   +11 more
core   +2 more sources

The Flattest Infrared Extinction Curve in Four Isolated Dense Molecular Cloud Cores

open access: yesThe Astrophysical Journal Letters
The extinction curve of interstellar dust in the dense molecular cloud cores is crucial for understanding dust properties, particularly size distribution and composition.
Jun Li   +5 more
doaj   +1 more source

The interstellar cloud surrounding the Sun: a new perspective

open access: yes, 2014
Aims: We offer a new, simpler picture of the local interstellar medium, made of a single continuous cloud enveloping the Sun. This new outlook enables the description of a diffuse cloud from within and brings to light some unexpected properties. Methods:
Gry, Cecile, Jenkins, Edward B.
core   +4 more sources

Small-Scale Interstellar Na I Structure Toward M92 [PDF]

open access: yes, 2001
We have used integral field echelle spectroscopy with the DensePak fiber-optic array on the KPNO WIYN telescope to observe the central 27" x 43" of the globular cluster M92 in the Na I D wavelength region at a spatial resolution of 4".
David M. Meyer   +6 more
core   +3 more sources

Survey on AI‐Enabled Computer Vision Technologies and Applications for Space Robotic Missions

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT This survey provides a comprehensive overview of recent advancements and challenges in Artificial Intelligence (AI)‐enabled computer vision (CV) techniques for space robotic missions, spanning critical phases such as Entry, Descent, and Landing (EDL), orbital operations, and planetary surface exploration.
Maciej Quoos   +6 more
wiley   +1 more source

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