Results 41 to 50 of about 1,035 (178)

Radial Distribution of Electron Quasi-thermal Noise in the Outer Heliosphere

The Astrophysical Journal
Voyager 1 and 2 are only the two spacecraft that have arrived and passed through the heliospheric boundaries. Based on the plasma data from the Voyager 2 spacecraft, the electron quasi-thermal noise (QTN) is investigated by using of the electron ...
Yi-Lun Li, Ling Chen, Jin Wu De
doaj   +1 more source

The GBT Diffuse Ionized Gas Survey (GDIGS): Discrete Sources

The Astrophysical Journal, 2023
The Green Bank Telescope Diffuse Ionized Gas Survey (GDIGS) traces ionized gas in the Galactic midplane by observing radio recombination line (RRL) emission from 4 to 8 GHz. The nominal survey zone is 32.°3 > ℓ > −5°, ∣ b ∣ < 0.°5. Here, we analyze GDIGS
Dylan J. Linville, Matteo Luisi, L. D. Anderson, Bin Liu, T. M. Bania, Dana S. Balser, Trey V. Wenger, L. M. Haffner, J. L. Mascoop   +8 more
doaj   +1 more source

Plasma Diagnostics of the Interstellar Medium with Radio Astronomy [PDF]

Space Science Reviews, 2013
We discuss the degree to which radio propagation measurements diagnose conditions in the ionized gas of the interstellar medium (ISM). The "signal generators" of the radio waves of interest are extragalactic radio sources (quasars and radio galaxies), as well as Galactic sources, primarily pulsars.
Haverkorn, M., Spangler, S.
openaire   +5 more sources

Jovian Auroral Proton Precipitation

Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract The total power of the Jovian aurora is about 1013–1014 W with ultraviolet emission observed in the Lyman and Werner bands of molecular hydrogen. X‐ray, radio, and infrared emissions have also been observed. The Jovian Auroral Distributions Experiment and the Jovian Energetic Particle Detector Instrument onboard the Juno spacecraft, orbiting ...
S. J. Houston, T. E. Cravens, O. Q. Hamil, J. H. Waite, D. R. Schultz   +4 more
wiley   +1 more source

Exploring the Complex Heliotail Boundary by an Extended Level Set Approach

The Astrophysical Journal Letters
There is an ongoing debate regarding the shape of the heliotail. Studies have shown that the heliotail may be “comet-like,” extending for thousands of au. Some previous works defined the heliopause using magnetohydrodynamic variables, which only serve as
C. Onubogu, M. Opher, M. Kornbleuth, G. Tóth, V. Florinski   +4 more
doaj   +1 more source

Deterministic Propagation of Suprathermal Ions Through the Heliosphere

Journal of Geophysical Research: Space Physics, Volume 131, Issue 7, July 2026.
Abstract The PEPSSI instrument onboard New Horizons is sampling the energy range that bridges pickup and suprathermal He+ ${\mathrm{H}\mathrm{e}}^{+}$ ions for the first time in the outer heliosphere. New Horizons repeatedly encountered structures beyond 30 au that we interpret as the spiral of a corotating interaction region (CIR) for an extended ...
P. Kollmann, E. C. Roelof, M. E. Hill, R. B. Decker, P. Brandt, R. L. McNutt Jr., P. S. Mostafavi, R. Nikoukar, J. W. Parker, K. N. Singer, J. Spencer, A. Stern, A. J. Verbiscer   +12 more
wiley   +1 more source

Plasma Physics Processes of the Interstellar Medium

, 2009
We discuss the outstanding issues of the interstellar medium which will depend on the application of knowledge from plasma physics. We particularly advocate attention to recent developments in experimental plasma physics, and urge that the astronomical community consider support of these experiments in the next decade.
Spangler, Steven, Haverkorn, Marijke, Intrator, Thomas, Kulsrud, Russell, Lazarian, Alex, Redfield, Seth, Zweibel, Ellen   +6 more
openaire   +2 more sources

Novel Long‐Acting Ghrelin Analogue PEP‐064 Restores Energy Balance in C26 and Lewis Lung Carcinoma–Induced cachexia in Mice

Journal of Cachexia, Sarcopenia and Muscle, Volume 17, Issue 3, June 2026.
ABSTRACT Background Cancer cachexia is a debilitating syndrome marked by involuntary weight loss resulting from reduced food intake and intricate metabolic reprogramming. Despite its high prevalence, cancer cachexia remains undertreated, with a lack of effective and approved pharmacotherapies.
J. E. Hunt, C. Lund, B. Chen, A. R. Diaz, O. Dmytriyeva, J. Marcotorchino, K. Löbner, K. Mörl, N. R. Andersen, Z. K. J. Ogueboule, E. Frank, J. Stöhr, D. Meseguer, V. Panajotova, J. Roux, C. Clemmensen, L. Sylow, M. Schneeberger, A. G. Beck‐Sickinger, S. L. Pedersen, K. Fosgerau   +20 more
wiley   +1 more source

NE2025: An Updated Electron Density Model for the Galactic Interstellar Medium

The Astrophysical Journal
Free electrons in the Galactic interstellar medium (ISM) disperse and scatter coherent radio waves, by amounts that depend on the distance to the radio source.
Stella Koch Ocker, James M. Cordes
doaj   +1 more source

On the Detection of Low‐Frequency Planetary Radio Emission With an Orbiting Interferometer

Radio Science, Volume 61, Issue 6, June 2026.
Abstract The magnetized planets of the outer Solar System produce kilometric radio emissions at very low frequencies (<1 ${< } 1\,$MHz). They reveal the planetary magnetic dynamics and their interaction with the solar wind. Those radio emissions can also serve as a proxy for interplanetary space weather monitoring.
E. Rouillé, B. Cecconi, B. Segret, J. N. Girard, A. Loh   +4 more
wiley   +1 more source