Results 151 to 160 of about 166,323 (379)

Observational Searches for Galaxies at z > 6

, 2016
Although the universe at redshifts greater than six represents only the first one billion years ( 6, with spectroscopically confirmed galaxies out to nearly z = 9.
Finkelstein, Steven L.
core   +1 more source

Models for the Formation and Evolution of Spherical Galaxies [PDF]

, 1974
Richard B. Larson
openalex   +1 more source

Chemical evolution of galaxies and galaxy formation mechanisms [PDF]

Proceedings of Baryons in Dark Matter Halos — PoS(BDMH2004), 2004
I will describe the results if models for the chemical evolution of galaxies of different morphological type (ellipticals, spirals and irregulars), and compare them with observations in order to impose constraints on the mechianisms of formation and evolution of galaxies.
openaire   +2 more sources

UV–Vis Spectra of Carbonic Acid: Rationalizing Experimental Redshifts between Monomer and Bulk based on (H2CO3)n Calculations

ChemPhysChem, EarlyView.
In bulk carbonic acid (e.g., in interstellar icy dust grains) cluster formation produces two distinct UV‐Vis spectral features redshifted by ≈2 eV (25 nm) and by ≈5 eV (80 nm) compared to gas phase single molecule carbonic acid 's adiabatic ionization energy. Theory and experiment were used to investigate the origin of these shifts.
Dennis F. Dinu, Bastian Klein, Chaojiang Zhang, Radu A. Talmazan, Thomas Loerting, Hinrich Grothe, Ralf I. Kaiser, Maren Podewitz   +7 more
wiley   +1 more source

Local variations of the radial metallicity gradient in a simulated NIHAO-UHD Milky Way analogue and their implications for (extra-)galactic studies

The Open Journal of Astrophysics
Radial metallicity gradients are fundamental to understanding galaxy formation and evolution. In our high-resolution simulation of a NIHAO-UHD Milky Way analogue, we analyze the linearity, scatter, spatial coherence, and age-related variations of ...
Sven Buder, Tobias Buck, Qian-Hui Chen, Kathryn Grasha   +3 more
doaj   +1 more source

Evidence for AGN Feedback in Galaxy Clusters and Groups

Advances in Astronomy, 2012
The current generation of flagship X-ray missions, Chandra and XMM-Newton, has changed our understanding of the so-called “cool-core” galaxy clusters and groups.
Myriam Gitti, Fabrizio Brighenti, Brian R. McNamara   +2 more
doaj   +1 more source

Dissecting Halo Components in IFU Data

Galaxies, 2017
While most astronomers are now familiar with tools to decompose images into multiple components such as disks, bulges, and halos, the equivalent techniques for spectral data cubes are still in their infancy.
Michael Merrifield, Evelyn Johnston, Alfonso Aragón-Salamanca   +2 more
doaj   +1 more source

Evolution of the Plasma Universe: II. The Formation of Systems of Galaxies [PDF]

, 1986
Anthony L. Peratt
openalex   +1 more source

Evolution of the star formation efficiency in galaxies [PDF]

Proceedings of the International Astronomical Union, 2012
AbstractThe physical and chemical evolution of galaxies is intimately linked to star formation, We present evidence that molecular gas (H2) is transformed into stars more quickly in smaller and/or subsolar metallicity galaxies than in large spirals – which we consider to be equivalent to a star formation efficiency (SFE).
openaire   +2 more sources

From Fabrication to Failure—Aqueous Processing, Electrolyte Tuning, and Degradation Mechanism Elucidation in Poly(3‐Vinyl‐N‐Methylphenoxazine) Positive Electrodes

ChemSusChem, EarlyView.
Organic electrode materials are considered the next generation of battery electrode materials due to their environmental friendliness, low toxicity and competitive specific capacities. Herein, we report on a systematic study of processing of the redox polymer poly(3‐vinyl‐N‐methylphenoxazine) (PVMPO) using water processable binders, achieving ...
Sathiya Priya Panjalingam, Somayeh Ahadi, Markus Börner, Birgit Esser, Martin Winter, Peter Bieker   +5 more
wiley   +1 more source