Results 21 to 30 of about 1,018 (176)
Plasma turbulence in the interstellar medium [PDF]
Plasma Physics and Controlled Fusion, 2019 Abstract The interstellar medium (ISM) is a multi-phase, magnetized, and highly turbulent medium. In this paper, we address both theoretical and observational aspects of plasma turbulence in the ISM. We successively consider radio wave propagation through a plasma and radio polarized emission.
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Interstellar Scintillation Studies of Pulsars and Distribution of Scattering Plasma in the Local Interstellar Medium [PDF]
Astrophysics and Space Science, 2001 AbstractPulsar scintillation measurements from the Ooty Radio Telescope (ORT) are used to investigate the distribution of scattering in the Local Interstellar Medium (LISM; region of ≲ 1 kpc of the Sun), specifically the region in and around the Local Bubble.
N. D. Ramesh Bhat +3 more
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Non-equilibrium ionisation plasmas in the interstellar medium [PDF]
Astrophysics and Space Science, 2021 AbstractObtaining astrophysical information from diffuse cool, warm and hot plasmas in interstellar and intergalactic media by electromagnetic radiation is based on highly non-linear heating and cooling processes, which are largely determined by atomic physical time scales and reaction rates. To calculate spectra is further complicated by gas dynamical
Dieter Breitschwerdt +1 more
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The Astrophysical Journal, 2023 Interstellar neutral (ISN) helium atoms penetrating the heliosphere are used to find the flow velocity and temperature of the very local interstellar medium near the heliosphere.
P. Swaczyna +3 more
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Plasma generation and processing of interstellar carbonaceous dust analogs [PDF]
Plasma Sources Science and Technology, 2018 Interstellar (IS) dust analogs, based on amorphous hydrogenated carbon (a-C:H) were generated by plasma deposition in RF discharges of CH4 + He mixtures. The a-C:H samples were characterized by means of secondary electron microscopy (SEM), infrared (IR) spectroscopy and UV-visible reflectivity.
R J Peláez +7 more
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Interstellar turbulent magnetic field generation by plasma instabilities [PDF]
Astrophysics and Space Science, 2013 The maximum magnetic field strength generated by Weibel-type plasma instabilities is estimated for typical conditions in the interstellar medium. The relevant kinetic dispersion relations are evaluated by conducting a parameter study both for Maxwellian and for suprathermal particle distributions showing that micro Gauss magnetic fields can be ...
Tautz, R. C., Triptow, J.
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A speckle hologram of the interstellar plasma
The Astrophysical Journal, 1992 Observations of a speckle hologram of scattering material along the line of sight to the Vela pulsar indicate that this material is concentrated in the Vela supernova remnant, deep within the Gum Nebula. The speckle hologram is observed through the amplitude and phase variations of the interferometric cross-power spectrum with time and frequency. These
K. M. Desai +8 more
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The Astrophysical Journal, 2023 The Voyager spacecraft are providing the first in situ measurements of physical properties in the outer heliosphere beyond the heliopause. These data, together with data from the IBEX and Hubble Space Telescope and physical models consistent with these ...
Jeffrey L. Linsky, Eberhard Moebius
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Diffuse Hot Plasma in the Interstellar Medium and Galactic Outflows
, 2022 To appear in the Section 'Supernovae, Supernova Remnants, and Diffuse Emission' (Section eds.: Aya Bamba, Keiichi Maeda, Manami Sasaki) in the Handbook of X-ray and Gamma-ray Astrophysics (Eds. Cosimo Bambi, Andrea Santangelo)
Sasaki, Manami +2 more
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Nature Communications, 2020 Polycyclic aromatic hydrocarbons (PAHs) are present in the interstellar medium but their origin is unclear. Here the authors investigate large PAH formation from smaller PAHs in a plasma jet by mass-selective IR and UV laser spectroscopy, uncovering ...
Alexander K. Lemmens +4 more
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