Results 51 to 60 of about 390,122 (225)
A Solar Analog Model for Decrease in Far Ultraviolet Irradiance Under a Grand Minimum
Earth and Space Science, Volume 13, Issue 9, September 2026.Abstract Solar analog field stars having a range of magnetic activity can provide an estimate of solar spectral irradiance (SSI) variability relevant to understanding the Sun's influence on terrestrial climate. This approach is particularly useful for far ultraviolet (FUV) irradiance that cannot be observed from the Earth surface.
D. Lubin, C. Melis, D. Tytler
wiley +1 more source
The clustering and X-ray properties of faint galaxies [PDF]
, 1994 The clustering properties of faint (23 ≤ B ≤ 27) galaxies were investigated, with the aim of obtaining information about their redshift distribution, N(z), and therefore about the processes of galaxy evolution causing the steep rise in the galaxy number ...
Roche, Nathan, Roche, N
core
Steps toward Unraveling the Structure and Formation of Five Polar Ring Galaxies
GalaxiesPolar ring galaxies (PRGs) are unusual relative to common galaxies in that they consist of a central host galaxy—usually a gas-poor, early-type S0 or elliptical galaxy—surrounded by a ring of gas, dust and stars that orbit perpendicular to the major axis
Kyle E. Lackey +2 more
doaj +1 more source
Structural and Morphological Properties of Ultraluminous Infrared Galaxies at 1 < z < 3
Open Astronomy, 2015 Using the Hubble Space Telescope (HST)/Wide Field Camera 3 (WFC3) near-infrared high-resolution imaging from the 3D-HST survey, we analyze the morphology and structure of 502 ultraluminous infrared galaxies (ULIRGs; LIR > 1012L⊙) at 1 < z < 3. Their rest-
Fang Guanwen +3 more
doaj +1 more source
Collisionless Shocks: Contemporary State After Three Quarters of a Century of Research
Reviews of Geophysics, Volume 64, Issue 3, September 2026.Abstract The collisionless shock research started in the late 1950s. Since then, plenty of data have been accumulated due to the large number of missions in the heliosphere, providing in situ measurements of the fields and particles. The quality of these measurements has vastly improved, especially in the last two decades.
M. Gedalin +2 more
wiley +1 more source
ON THE RADIAL EXTENT OF THE DWARF IRREGULAR GALAXY IC10 [PDF]
The Astrophysical Journal, 2010 7 pages, 4 figures, ApJ Letters ...
Sanna, N. +18 more
openaire +3 more sources
The nature and origin of disky elliptical galaxies [PDF]
, 2002 The observational trend that disky elliptical galaxies exhibit younger luminosity- weighted ages than boxy ellipticals is investigated. The presence of a possible young stellar disk embedded in these galaxies is explored by comparing kinematics derived ...
McDermid, Richard Morgan
core
GRB Host Galaxies: An Unbiased Sample [PDF]
, 2011 We describe the current status and recent results from our Swift/VLT legacy survey, a VLT Large Programme aimed at characterizing the host galaxies of a homogeneously selected sub-sample of Swift GRBs.
Milvang-Jensen, Bo +6 more
core +1 more source
Serpentine Biocrust Microbes Maintain Nitrogen Cycling Under Drought and Heavy Metal Stress
Ecological Research, Volume 41, Issue 5, September 2026.This study highlights the complex interplay between soil geochemistry and moisture availability in shaping microbial communities within wetter and drier serpentine and non‐serpentine biological soil crusts. It demonstrates that both factors influence the structure of nitrogen‐cycling microbial communities and the processes they mediate.
Sandra Barnard +4 more
wiley +1 more source
The Full-fledged Dwarf Irregular Galaxy Leo A [PDF]
The Astrophysical Journal, 2004 9 pages, 3 figures, submitted to ...
Vansevicius, Vladas +10 more
openaire +3 more sources