Results 71 to 80 of about 54,429 (269)

Galaxy Formation from a Low-Spin Density Perturbation in a CDM Universe [PDF]

open access: yes, 1999
In order to understand the formation process of elliptical galaxies which are not rotationally supported, we have carried out numerical simulations of the galaxy formation from the density perturbation with a rotation corresponding to a small spin ...
Kawata, Daisuke
core   +3 more sources

Clinically Inspired Multimodal Treatment Using Induced Neural Stem Cells‐Derived Exosomes Promotes Recovery of Traumatic Brain Injury through Microglial Modulation

open access: yesAdvanced Science, Volume 12, Issue 46, December 11, 2025.
This study explores the therapeutic potential of iNSC‐Exo via local and systemic delivery in TBI mice. It is found that iNSC‐Exo enhances NRXN signaling through Microglia_Nrg3 and Microglia_Rarb, effectively promoting functional and neurological recovery, suggesting a new therapeutic strategy for TBI. Abstract Traumatic brain injury (TBI) poses serious
Jiaojiao Li   +9 more
wiley   +1 more source

Near-IR TRGB Distance to Dwarf Elliptical Galaxy NGC 147 [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2007
We report the distance modulus of nearby dwarf elliptical galaxy NGC 147 estimated from the Tip of Red-giant Branch (TRGB) method applying to the color-magnitude diagrams and luminosity functions in the near-infrared JHK bands.
A. Kang   +5 more
doaj   +1 more source

Numerical modelling of Auriga's Wheel - a new ring galaxy

open access: yes, 2012
We model the formation of Auriga's Wheel - a recently discovered collisional ring galaxy. Auriga's Wheel has a number of interesting features including a bridge of stars linking the neighbouring elliptical to the ring galaxy, and evidence for components ...
Appleton   +56 more
core   +1 more source

The Complete Chloroplast Genome and Morphological Data Support Reinstatement of Sedum jinianum (Crassulaceae) as an Independent Species

open access: yesEcology and Evolution, Volume 15, Issue 12, December 2025.
Phylogenetic analysis based on complete plastome data indicates that S. jinianum forms a monophyletic clade, sister to a well‐supported clade comprising four S. bulbiferum samples, supporting the reinstatement of S. jinianum as an independent species. ABSTRACT Sedum jinianum (Crassulaceae) has been treated as a synonym of S.
Lang Shen   +8 more
wiley   +1 more source

Minor Merger Growth in Action: JWST Detects Faint Blue Companions around Massive Quiescent Galaxies at 0.5 ≤ z ≤ 3.0

open access: yesThe Astrophysical Journal Letters, 2023
Minor mergers are thought to drive the structural evolution of massive quiescent galaxies; however, existing Hubble Space Telescope (HST) imaging is primarily sensitive to stellar mass ratios ≳1:10.
Katherine A. Suess   +19 more
doaj   +1 more source

Full-sky ray-tracing simulation of weak lensing using ELUCID simulations: exploring galaxy intrinsic alignment and cosmic shear correlations

open access: yes, 2018
The intrinsic alignment of galaxies is an important systematic effect in weak-lensing surveys, which can affect the derived cosmological parameters. One direct way to distinguish different alignment models and quantify their effects on the measurement is
Cui, Weiguang   +17 more
core   +1 more source

Astragalus zhobensis, a new species of section Caprini (Fabaceae) from Zhob, northern Balochistan, Pakistan

open access: yesNordic Journal of Botany, Volume 2025, Issue 12, December 2025.
A new species Astragalus zhobensis, from Qamardin Karez, Zhob district, northern Balochistan, Pakistan is described and illustrated. The new species is morphologically similar to A. cartilagineus, but can be distinguished by strigose hairs 3–5 mm long, (not stiff 1.5−4.0 mm long hairs); stipules 5–15 mm (not 8−12 mm) long; leaflets in 4–6 pairs, (not 3–
Tahir Khan   +4 more
wiley   +1 more source

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