Results 41 to 50 of about 110,395 (224)

CALCULATION OF CHEMICAL EQUILIBRIUM IN THE INTERSTELLAR CLOUD

Odessa Astronomical Publications, 2017
In order to calculate the molecular concentrations in the interstellar cloud and to obtain heir spatial distribution we have made a computational code to solve the set of equations for chemical equilibrium and equations of charge and atom balance.
I. Shmeld, J. Freimanis, N. G. Bochkarev
doaj   +1 more source

Technology requirements of exploration beyond Neptune by solar sail propulsion [PDF]

, 2010
This paper provides a set of requirements for the technology development of a solar sail propelled Interstellar Heliopause Probe mission. The mission is placed in the context of other outer solar systems missions, ranging from a Kuiper Belt mission ...
Axford W. I., Bilbro J. W., Colasurdo G., Colin McInnes, Dachwald B., Dachwald B., Fiehler D. I., Gareth Hughes, Herbeck L., Herbeck L., Kawaguchi J., Leipold M., Lichodziejewshi D., Lyngvi A., Macdonald M., Malcolm Macdonald, Mann T., Matloff G. L., McEachen M. E., Murphy D. M., Rogan J., Sauer C., Sleight D. W., Sweetser T. H., Vulpetti G., Wertz J. R., West J. L., Williams D. R., Yen C. L., Young R. M., Zurbuchen T. H.   +30 more
core   +1 more source

Interstellar extinction and interstellar polarization: old and new models [PDF]

, 2012
The review contains an analysis of the observed and model curves of the interstellar extinction and polarization. The observations mainly give information on dust in diffuse and translucent interstellar clouds. The features of various dust grain models including spherical/non-spherical, homogeneous/inhomogeneous particles are discussed.
arxiv   +1 more source

Dense molecular clouds in the SN2008fp host galaxy [PDF]

, 2014
(abridged) We use observations of interstellar absorption features, such as atomic and molecular lines as well as diffuse interstellar bands (DIBs), towards SN2008fp to study the physical properties of extra-galactic diffuse interstellar clouds in the ...
Cox, N. L. J., Patat, F.
core   +1 more source

Hierarchical structure of the interstellar molecular clouds and star formation

Open 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., Khaibrakhmanov Sergey A.   +1 more
doaj   +1 more source

DESTRUCTION OF THE INTERSTELLAR CLOUDS BY THESHOCK WAVES

Odessa 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

Structure and evolution of interstellar carbonaceous dust. Insights from the laboratory

Frontiers in Astronomy and Space Sciences, 2022
A large fraction of interstellar carbon is locked up in solid grains. The nature, origin and evolution of these grains have been investigated for decades.
Víctor J. Herrero, Miguel Jiménez-Redondo, Miguel Jiménez-Redondo, Ramón J. Peláez, Belén Maté, Isabel Tanarro   +5 more
doaj   +1 more source

Energy Dissipation in Interstellar Cloud Collisions [PDF]

, 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, Chernin A. D., Das M., Francesco Miniati, Hausman M. A., Jungwiert B., Larson R. B., Massimo Ricotti, Oort J. H., Penston M. V., Pequignot D., Stone M. E.   +11 more
core   +2 more sources

Observations of Multiphase, High-velocity, Shocked Gas in the Vela Supernova Remnant

The Astrophysical Journal, 2023
We present an analysis of high-resolution far-UV archival spectra obtained with the Space Telescope Imaging Spectrograph on the Hubble Space Telescope of the star HD 75309, which probes high-velocity shocked gas in the Vela supernova remnant (SNR).
Adam M. Ritchey
doaj   +1 more source

Physical conditions in CaFe interstellar clouds [PDF]

Astron.Astrophys.477:543,2008, 2007
Interstellar clouds that exhibit strong Ca I and Fe I lines were called CaFe clouds. The ionisation equilibrium equations were used to model the column densities of Ca II, Ca I, K I, Na I, Fe I and Ti II in CaFe clouds. The chemical composition of CaFe clouds is that of the Solar System and no depletion of elements onto dust grains is seen.
arxiv   +1 more source