Results 101 to 110 of about 450,198 (276)

Coevolution of Bar and Spiral Arms in TNG50 Simulations Using Information Theory

open access: yesThe Astrophysical Journal
Using Information Theory, we investigate the coevolution of bars and spiral arms in barred-spiral galaxies from the cosmological magnetohydrodynamic Illustris TNG50 simulations. We first calculate Mutual Information (MI) between a structural or kinematic
Anagha A G, Arunima Banerjee
doaj   +1 more source

A study of radio continuum emission of the Milky Way Galaxy [PDF]

open access: yes, 1996
The synchrotron emissivity distribution of the Milky Way Galaxy has been modelled from the 408 MHz allsky survey of Haslam et al.(1982) after separation of its thermal component with the help of IRAS 60 micron emission(Broadbent et al 1989).
Sanguansak, Nuanwan
core  

A low‐cost, portable polarizing digital light microscope for monitoring crystal growth and for crystal harvesting

open access: yesJournal of Applied Crystallography, EarlyView.
A low‐cost, portable, medium‐resolution polarizing digital light microscope device for monitoring crystal growth and for crystal harvesting is described. The device can be used with a cell phone or a personal computer for real‐time imaging by professional and amateur scientists alike.Motivated by the need for a convenient way to demonstrate the growth ...
Sarah Kennedy   +7 more
wiley   +1 more source

Are Purely Gaseous Bars in Dwarf Irregulars a Myth?

open access: yesThe Astrophysical Journal
About two-thirds of galactic disks exhibit a central ellipsoidal stellar component called the bar, with or without a gaseous counterpart. However, there are a few dwarf galaxies with purely gaseous bars: NGC 3741, NGC 2915, and DDO 168. This is a puzzle,
Anagha A. G., Arunima Banerjee
doaj   +1 more source

Boxy/Peanut Bulges: Comparative Analysis of EGIPS Galaxies and TNG50 Models

open access: yesGalaxies
We investigated the properties of boxy/peanut-shaped (B/PS) bulges in a sample of 71 galaxies from the Edge-on Galaxies in the Pan-STARRS Survey (EGIPS) and 20 simulated galaxies from Illustris TNG50 using multicomponent photometric decomposition.
Anton Smirnov   +4 more
doaj   +1 more source

‘A Sort of Armed Argument’: Ireland's Civil War of Words

open access: yesHistory, EarlyView.
Abstract This article sets out to contribute to the study of the languages of European civil wars through outlining and analysing the deployment of language as a weapon by the opposing sides of the Irish independence movement that split over the terms of the Anglo‐Irish Treaty of December 1921.
DONAL Ó DRISCEOIL
wiley   +1 more source

Humble beginnings of the Australian giant wood moth (Endoxyla cinereus): A century‐old mystery solved

open access: yesInsect Science, EarlyView.
The Australian giant wood moth (Endoxyla cinereus) feeds within the galls of scale insects (Apiomorpha) before transitioning into its wood‐boring eucalypt larval phase. This transitionary phase may be key to its multi‐year development, at the end of which it can produce over 100 000 eggs.
Jessa H. Thurman   +4 more
wiley   +1 more source

Bar Formation and Destruction in the FIRE-2 Simulations

open access: yesThe Astrophysical Journal
The physical mechanisms responsible for bar formation and destruction in galaxies remain a subject of debate. While we have gained valuable insight into how bars form and evolve from isolated idealized simulations, in the cosmological domain, galactic ...
Sioree Ansar   +7 more
doaj   +1 more source

Properties of bars in the local universe

open access: yes, 2008
We studied the fraction and properties of bars in a sample of about 3000 galaxies extracted from SDSS-DR5. This represents a volume limited sample with galaxies located between redshift 0.01-20, and inclination i < 60°. Interacting galaxies were excluded
MÉNDEZ ABREU J.   +2 more
core  

Effect of Salinity Stress on Gut–Brain–Gonad Axis in the Red‐Eared Slider (Trachemys scripta elegans)

open access: yesIntegrative Zoology, EarlyView.
The increase in salinity leads to changes in the gut microbiota and metabolites of Trachemys scripta elegans, affecting the synthesis and secretion of neurotransmitters or precursors, which can inhibit the secretion of reproductive hormones and affect the self‐renewal and differentiation process of spermatogonial stem cells.
Qiongyu Zhang   +5 more
wiley   +1 more source

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