Results 31 to 40 of about 39,097 (209)

Anomalous diffusion of cosmic rays: A geometric approach

open access: yesAIP Advances, 2021
In this work, we analyze the process leading to the occurrence of anomalous transport phenomena associated with galactic cosmic rays propagating through the interstellar space.
Salvatore Buonocore, Mihir Sen
doaj   +1 more source

X-Ray Absorption and Scattering by Interstellar Grains

open access: yes, 2016
Interstellar abundance determinations from fits to X-ray absorption edges often rely on the incorrect assumption that scattering is insignificant and can be ignored.
Draine, Bruce T., Hoffman, John A.
core   +1 more source

Measurements of Interstellar Scattering in the Cygnus Region [PDF]

open access: yesSymposium - International Astronomical Union, 1988
We report progress on a study of interstellar scattering in the direction of the constellation Cygnus. A high quality, 1663 MHz VLBI image has been obtained of the radio source 2013+370, whose structure at this frequency is dominated by scattering. The visibility function indicates that the spectral index of the interstellar density irregularities is ...
S. Spangler, A. Fey, R. Mutel
openaire   +1 more source

Warm Breeze from the starboard bow: a new population of neutral helium in the heliosphere

open access: yes, 2014
We investigate the signals from neutral He atoms observed from Earth orbit in 2010 by IBEX. The full He signal observed during the 2010 observation season can be explained as a superposition of pristine neutral interstellar He gas and an additional ...
Alexashov, D. B.   +11 more
core   +1 more source

Black hole mass measurements using ionized gas discs: systematic dust effects [PDF]

open access: yes, 2008
Using detailed Monte Carlo radiative transfer simulations in realistic models for galactic nuclei, we investigate the influence of interstellar dust in ionized gas discs on the rotation curves and the resulting black hole mass measurements.
Archan S. Majumdar   +2 more
core   +2 more sources

The Parkes Multibeam Pulsar Survey and Interstellar Scattering [PDF]

open access: yesAstrophysics and Space Science, 2001
AbstractThe Parkes multibeam pulsar survey is a major survey for pulsars lying within a 10°-wide strip along the southern Galactic plane, using the multibeam receiver on the Parkes 64-m radiotelescope. It is an international collaboration between groups at Jodrell Bank Observatory, Massachusetts Institute of Technology, Bologna Astronomical Observatory
openaire   +1 more source

IBEX Observations of Elastic Scattering of Interstellar Helium by Solar Wind Particles

open access: yesThe Astrophysical Journal
The IBEX-Lo instrument on the Interstellar Boundary Explorer (IBEX) mission observes primary and secondary interstellar helium in its four lowest energy steps.
Hafijul Islam   +10 more
doaj   +1 more source

Scattering of Cosmic Rays by Magnetohydrodynamic Interstellar Turbulence

open access: yesPhysical Review Letters, 2002
4 pages, 2 figures, Phys. Rev. Lett.
Yan, Huirong, Lazarian, A.
openaire   +3 more sources

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

open access: yesExperimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

Inverse Raman Scattering and the Diffuse Interstellar Bands: An Exploration of the Systemic Interconnections between Spontaneous and Inverse Raman Scattering and Extended Red Emission, Red Rectangle Bands, and Diffuse Interstellar Bands

open access: yesThe Astrophysical Journal
First identified in 1964, inverse Raman scattering (IRS) is a nonlinear stimulated phenomenon that induces Raman-scattered absorptions where Raman emissions would be expected.
Frédéric Zagury
doaj   +1 more source

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