Results 61 to 70 of about 53,348 (269)

Kinematics of diffuse elliptical galaxies

open access: yesAstrophysics and Space Science, 2003
To be published in "The Evolution of Galaxies. III. From Simple Approaches to Self-Consistent Models", G.
Prugniel, Philippe, Simien, Francois
openaire   +2 more sources

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

Giant Halos in Dwarf Irregular Galaxies vs. Dwarf Elliptical Galaxies

open access: yes, 2005
We present a discovery of a giant stellar halo in NGC 6822, a dwarf irregular galaxy in the Local Group. This halo is mostly made of old red giants, showing striking features: 1) it is several times larger than the main body of the galaxy seen in the ...
Hwang, Narae, Lee, Myung Gyoon
core   +1 more source

The Hierarchical Origins of Observed Galaxy Morphology [PDF]

open access: yes, 2013
Galaxies grow primarily via accretion-driven star formation in discs and merger-driven growth of bulges. These processes are implicit in semi-analytical models of galaxy formation, with bulge growth in particular relating directly to the hierarchical ...
De Lucia, Gabriella   +4 more
core   +1 more source

Structure and Dynamics of Elliptical Galaxies

open access: yesAnnual Review of Astronomy and Astrophysics, 1991
The equilibrium models, observations and formation processes of elliptical galaxies are reviewed.
Zeeuw, P.T. de, Franx, M.
openaire   +3 more sources

Relevance of Murchison Widefield Array Interplanetary Scintillation Observations to Heliospheric Transient Catalogs

open access: yesSpace Weather, Volume 23, Issue 12, December 2025.
Abstract We have conducted a comprehensive comparison of interplanetary scintillation (IPS) observations taken by the Murchison Widefield Array (MWA) with several heliospheric transient event catalogs, over a time period of 7 months during solar minimum.
A. Waszewski   +8 more
wiley   +1 more source

Investigating the Impact of Supernova Feedback on Satellites in Elliptical Galaxies

open access: yesThe Astrophysical Journal
We investigate the influence of supernova (SN) feedback on the satellites of elliptical host galaxies using hydrodynamic simulations. Utilizing a modified version of the GADGET-3 code, we perform cosmological zoom-in simulations of 11 elliptical galaxies
Sumi Kim   +6 more
doaj   +1 more source

Advanced Life Peaked Billions of Years Ago According to Black Holes

open access: yesGalaxies, 2023
The link between black holes and star formation allows for us to draw a connection between black holes and the places and times when extraterrestrial intelligences (ETIs) had a greater chance of emerging.
David Garofalo
doaj   +1 more source

Uv Fluxes In Elliptical Galaxies [PDF]

open access: yesSymposium - International Astronomical Union, 1997
The key properties of elliptical galaxies are compared to present-day models calling attention on several points of contradiction. The nature of the UV fluxes and their usefulness to cast light on the age-metallicity dilemma are discussed. Finally, preliminary results of an attempt aimed at reconciling theory with observations by means of an new IMF ...
openaire   +1 more source

From cells to pixels: A decision tree for designing bioimage analysis pipelines

open access: yesJournal of Microscopy, Volume 300, Issue 3, Page 384-408, December 2025.
Abstract Bioimaging has transformed our understanding of biological processes, yet extracting meaningful information from complex datasets remains a challenge, particularly for biologists without computational expertise. This paper proposes a simple general approach, to help identify which image analysis methods could be relevant for a given image ...
Elnaz Fazeli   +4 more
wiley   +1 more source

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