Results 71 to 80 of about 37,027 (256)

A Multiwavelength Portrait of the 3C 220.3 Lensed System

open access: yesThe Astrophysical Journal
The 3C 220.3 system is a rare case of a foreground narrow-line radio galaxy (“galaxy A,” z _A = 0.6850) lensing a background submillimeter galaxy ( z _SMG = 2.221).
Sóley Ó. Hyman   +12 more
doaj   +1 more source

Diverse Galaxies Lithograph [PDF]

open access: yes, 2007
This Hubble Space Telescope image shows the diversity of galaxies in the universe. A huge elliptical galaxy, designated ESO 325-G004, dominates the image.

core  

Advances in cardiac devices and bioelectronics augmented with artificial intelligence

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Interfaces between the human heart, diagnostic bioelectronics, artificial intelligence, and clinical care. From left to right: Human heart and biosensor interface; representative waveforms of common diagnostic bioelectronic sensing modalities.
Charles Stark   +3 more
wiley   +1 more source

The stellar structure of irregular galaxies. Face-on galaxies

open access: yesAstronomy Reports, 2005
Stellar photometry of nearby irregular galaxies of the Local Group is used to identify and study the young and old stellar populations of these galaxies. An analysis of the spatial distributions of stars of different ages in face-on galaxies shows that the young stellar populations in irregular galaxies are concentrated toward the center, and form ...
openaire   +3 more sources

UVIT Study of the Magellanic Clouds (U-SMAC). III. Hierarchical Star Formation in the Small Magellanic Cloud Regulated by Turbulence

open access: yesThe Astrophysical Journal
The Small Magellanic Cloud (SMC), a satellite galaxy of the Milky Way, is an irregular dwarf galaxy exhibiting evidence of recent and ongoing star formation.
Sipra Hota   +2 more
doaj   +1 more source

Steps toward Unraveling the Structure and Formation of Five Polar Ring Galaxies

open access: yesGalaxies
Polar 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

A Diverse Population of z ∼ 2 ULIRGs Revealed by JWST Imaging

open access: yesThe Astrophysical Journal, 2023
Four ultraluminous infrared galaxies (ULIRGs) observed with JWST/NIRcam in the Cosmos Evolution Early Release Science program offer an unbiased preview of the z ∼ 2 ULIRG population.
J.-S. Huang   +14 more
doaj   +1 more source

THE CHEMISTRY OF IRREGULAR GALAXIES

open access: yes, 1995
8 pages with figures, uuencoded, compressed PostScript file; invited talk at the 5th Texas-Mexico Conference on Astrophysics, Tequesquitengo, Mexico, 3-5 April 1995; to appear in Rev. Mex. Astron.
openaire   +2 more sources

Chemical evolution of irregular and blue compact galaxies [PDF]

open access: yesThe Astrophysical Journal, 1995
We discuss the chemical evolution of metal poor galaxies and conclude that their oxygen deficiency is not due to: the production of black holes by massive stars or a varying slope of the Initial Mass Function, IMF, at the high-mass end. A varying IMF at the low-mass end alone or in combination with: (a) an outflow of oxygen-rich material, (b) an ...
Carigi, L.   +3 more
openaire   +2 more sources

Exploring the Effects of Reduced Gravitational Field Impacts on Convective Heat Transfer: A Comprehensive Review

open access: yesHeat Transfer, Volume 55, Issue 1, Page 764-774, January 2026.
ABSTRACT This review explores the impact of gravitational instability on convective heat transfer, integrating existing research results and theoretical models. Gravitational instability is vital in promoting or hindering convective actions in different systems, such as atmospheric events, ocean currents, and industrial processes.
Hossam A. Nabwey   +3 more
wiley   +1 more source

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