Results 51 to 60 of about 12,606 (256)

Multi‐Species Energy‐Banded Ions in the Ionosphere During the 21 January 2005 Magnetic Storm: Low‐Altitude Edge of the Warm Plasma Cloak

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract During the 21–22 January 2005 magnetic storm, the FAST satellite observed warm (< few keV) ions in discrete energy bands on the dayside at ∼3,000 km altitude for more than 6.5 hr. We suggest that the ionospheric energy‐banded ions represent the low‐altitude edge of the warm plasma cloak observed simultaneously by magnetospheric satellites ...
J. U. Kozyra, M. W. Liemohn, C. A. Cattell, J. Dombeck, C. P. Escoubet, M. Thomsen, G. Lu, D. J. Knipp, L. J. Paxton, R. M. Skoug, H. A. Elliott, A. J. Davis, L. Rastaetter, D. DeZeeuw, C. Colpitts   +14 more
wiley   +1 more source

FUSE Spectra of the Black Hole Binary LMC X-3 [PDF]

, 2003
Far-ultraviolet spectra of LMC X-3 were taken covering photometric phases 0.47 to 0.74 in the 1.7-day orbital period of the black-hole binary (phase zero being superior conjunction of the X-ray source).
A. P. Cowley, D. Crampton, J. B. Hutchings, K. Winter, Kuiper L., P. C. Schmidtke, van der Klis M.   +6 more
core   +2 more sources

A Survey of Atmospheric Gravity Waves Observed by GOLD During Quiet to Moderate Solar and Geomagnetic Activity

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract Atmospheric gravity waves (GWs) are believed to transport energy and momentum between different regions of the atmosphere. Historically, observations of these waves from both ground and space have been relatively abundant at altitudes up to the lower thermosphere, and somewhat less abundant in the upper thermosphere and F‐region ionosphere ...
Scott L. England, Shun‐Rong Zhang, Scott Evans, Richard W. Eastes   +3 more
wiley   +1 more source

Application of tomographic inversion in studying airglow in the mesopause region [PDF]

Annales Geophysicae, 1998
It is pointed out that observations of periodic nightglow structures give excellent information on atmospheric gravity waves in the mesosphere and lower thermosphere.
T. Nygrén, M. J. Taylor, M. S. Lehtinen, M. Markkanen   +3 more
doaj   +1 more source

GALEX Observations of Diffuse UV Radiation at High Spatial Resolution from the Sandage Nebulosity

, 2008
Using the GALEX ultraviolet imagers we have observed a region of nebulosity first identified as starlight scattered by interstellar dust by Sandage (1976). Apart from airglow and zodiacal emission, we have found a diffuse UV background of between 500 and
Abhay Karnataki, Boffi, Jayant Murthy, Luciana Bianchi, Martin, Morrissey, Murthy, Murthy, Murthy, N. V. Sujatha, Richard Conn Henry, Ryu, Sujatha, Sujatha   +13 more
core   +1 more source

Climatology of Medium‐Scale Traveling Ionospheric Disturbances Over Continental US Using GNSS TEC From 2012 to 2023

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract Medium‐Scale Traveling Ionospheric Disturbances (MSTIDs) have long been a subject of interest in ionospheric research. However, their spatiotemporal variability across regions, local times, seasons, and solar cycles is very complicated and remains not well established.
Jing Liu, Shun‐Rong Zhang, Anthea J. Coster, Philip J. Erickson, Hanli Liu   +4 more
wiley   +1 more source

Dynamics for geomagnetic pulsations, field-aligned currents, and airglow at mid-latitudes within substorm activations during superstorms

Геодинамика и тектонофизика, 2019
Within substorm activations during two superstorms (2000 and 2003) from the observations at mid-latitude geomagnetic observatories, we study short-period irregular geomagnetic pulsations and airglow in the 557.7 nm and 630.0 nm atomic oxygen emission ...
Yu. Yu. Klibanova, V. V. Mishin, A. V. Mikhalev, B. Tsegmed, Yu. A. Karavaev, M. A. Kurikalova   +5 more
doaj   +1 more source

Far-UV Observations of NGC 4151 during the ORFEUS-SPAS II Mission [PDF]

, 1997
We observed the Seyfert 1 galaxy NGC 4151 on eleven occasions at 1-2 day intervals using the Berkeley spectrometer during the ORFEUS-SPAS II mission in 1996 November.
A. F. Davidsen, B. R. Espey, Bromage G., G. A. Kriss, Hurwitz M., J. H. Krolik, Ulrich M. H., W. Zheng, Z. Tsvetanov   +8 more
core   +2 more sources

Derivation of the Two‐Dimensional Distribution of Low‐Energy Electron Precipitation From 630‐nm All‐Sky Auroral Images and Its Application to the Polar Cap Boundary Near Midnight

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract We present a methodology for deriving the horizontal two‐dimensional distribution of low‐energy electron precipitation, specifically the possible lower bound of the differential energy flux of electron precipitation at 100 eV, from a 630‐nm auroral image obtained with a ground‐based all‐sky imager.
K. Yashima, S. Taguchi, K. Hosokawa, H. Koike   +3 more
wiley   +1 more source

The High Plasma Density Observed Along the PJ57 Juno Flyby of Io Implies the Presence of a Dense Atomic Corona

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract On December 2023, the Juno spacecraft made a flyby of Io above the northern hemisphere at a closest approach (CA) altitude of ∼1,500 km (PJ57). The Juno/Waves and Radio‐occultation measurements showed a surprising large electron density ∼28,000 cm−3 near closest approach.
V. Dols, F. Bagenal
wiley   +1 more source