Results 111 to 120 of about 193,802 (285)

ON THE E/P-COSMIC RAYS AS MEDIATORS OF VISCOUS FORCES THAT CREATE SHOCK AND VORTEX STRUCTURES IN THE RADIO GALAXIES

open access: yesOdessa Astronomical Publications, 2016
There are for the galaxies of FRII type (like Cygnus A) studied a number of hydrodynamic and kinetic processes to transport of magnetized plasma with cosmic rays, and a stratification process of RG-lobe because of e\p-cosmic rays.
N. O. Tsvyk
doaj   +1 more source

On the Origins of Starburst and Post-Starburst Galaxies in Nearby Clusters

open access: yes, 1998
HST WFPC2 images in B (F450W) and I (F814W) have been obtained for three starburst (SB) and two post-starburst (PSB) galaxies in the Coma cluster, and for three such galaxies in the cluster DC2048-52.
Barger A. J.   +20 more
core   +1 more source

Form flows function: Learner‐centered game Re‐design in a STEM classroom

open access: yesBritish Educational Research Journal, EarlyView.
Abstract Re‐designing games facilitates interest‐driven learning and immerses learners in systems thinking. However, there are limited studies exploring how the form and function of tabletop games influence learners' design decisions and learning experiences. To address this gap, we conducted a mixed‐methods study in a STEM classroom in western Canada.
Farzan Baradaran Rahimi   +2 more
wiley   +1 more source

JADES: Rest-frame UV-to-NIR Size Evolution of Massive Quiescent Galaxies from Redshift z = 5 to z = 0.5

open access: yesThe Astrophysical Journal
We present the UV-to-near-IR (NIR) size evolution of a sample of 161 quiescent galaxies with M _*  > 10 ^10 M _⊙ over 0.5  3 quiescent galaxies in our sample are very compact, with mass surface densities Σ _e  ≳ 10 ^10 M _⊙ kpc ^−2 , and their R _e are ...
Zhiyuan Ji   +39 more
doaj   +1 more source

Optical Properties of 4248 IRAS Galaxies

open access: yes, 2005
We have investigated optical properties of 4248 infrared galaxies (IRGs) by positionally matching data from the IRAS and the SDSS DR3. Our sample includes 3 hyper luminous infrared galaxies (L >10^13Lsun) and 178 ultra luminous infrared galaxies (10 ...
Abazajian   +84 more
core   +1 more source

Rethinking Climate Change on the Role of Human Power Generation, Alternative Perspectives, Potential Solutions, and a Plea for Action

open access: yesChemie Ingenieur Technik, EarlyView.
All energy matters Let us broaden the discussion on solutions to climate change. Greenhouse gases have upset the delicate equilibrium of the Earth's energy balance. Consequently, all sources of heat affect the temperature of the Earth. Although the amount of additional heat generated by humans is a fraction of that produced by the sun, it is generated ...
Martin Bertau   +2 more
wiley   +1 more source

Dwarf Galaxies with Radio-excess Active Galactic Nuclei in the Very Large Array Sky Survey

open access: yesThe Astrophysical Journal
We present a systematic search for radio active galactic nuclei (AGNs) in dwarf galaxies using recent observations taken by the Very Large Array Sky Survey (VLASS).
John-Michael Eberhard   +4 more
doaj   +1 more source

E+A Galaxies in the Near-Infrared: Broadband Photometry

open access: yesThe Astronomical Journal, 2000
This paper presents near-IR photometry of a selected sample of southern hemisphere E)A galaxies. The sample includes 50 galaxies from nearby (z D 0.05) and distant (z D 0.3) clusters, as well as E)A galaxies from the —eld (z D 0.1). Observations include 13 normal early-type galaxies from the —eld and from clusters to be compared with the E)A sample ...
openaire   +1 more source

Estimating Dust Attenuation from Galactic Spectra. III. Radial Variations of Dust Attenuation Scaling Relations in MaNGA Galaxies

open access: yesThe Astrophysical Journal
We investigate the radial dependence of the scaling relations of dust attenuation in nearby galaxies using integral field spectroscopy data from MaNGA.
Niu Li, Cheng Li
doaj   +1 more source

Star-forming compact groups: Tracing the early evolutionary stages of compact group environments

open access: yesAstronomy & Astrophysics
Context. In the context of pre-processing – a scenario where galaxies quench their star formation within substructures before falling into clusters – we investigate the impact of environment on the physical and morphological properties of galaxies in ...
Ortiz-Gómez S.   +15 more
doaj   +1 more source

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