Results 21 to 30 of about 34,750 (300)
Evolution of galaxies in clusters
The Astrophysical Journal, 1994 33 pages, normal ...
Charlot, S., Silk, J.
openaire +2 more sources
Strong Progenitor Age Bias in Supernova Cosmology and Alignment with DESI BAO
UniverseSupernova (SN) cosmology is based on the assumption that the luminosity of type Ia SNe, after the luminosity standardization process, remains invariant with progenitor age.
Chul Chung +4 more
doaj +1 more source
The Morphological Evolution of Galaxies
Science, 2001 Many galaxies have taken on their familiar appearance relatively recently. In the distant Universe, galaxy morphology deviates significantly (and systematically) from that of nearby galaxies at redshifts (z) as low as 0.3. This corresponds to a time ∼3.5 × 109years in the past, which is only ∼25% of the present age of the Universe.
Abraham, Roberto G. +1 more
openaire +3 more sources
Astronomy & AstrophysicsContext. High-resolution very long baseline interferometry (VLBI) observations have revealed a growing number of active galactic nuclei (AGNs) that exhibit variations in their inner jet position angle (PA).
Thevenet Paloma +4 more
doaj +1 more source
Chemical signatures of planetary systems in their host stars
Astronomy & AstrophysicsContext. An important open question in exoplanet studies is whether planets can leave detectable chemical fingerprints on their host stars. While several studies have suggested possible planetary chemical signatures in planet-hosting stars, including the
Lim Dongwook +5 more
doaj +1 more source
The clustering of galaxies in hierarchical galaxy formation models [PDF]
, 2010 Galaxy clustering encodes information about the values of cosmological parameters and also about the physical processes behind galaxy formation and evolution. The GALFORM semi-analytical model is the theoretical approach we used to model galaxy formation.
KIM, HAN,SIK, Kim, Han Sik
core
Chemical and kinematical evolution in nearby dwarf spheroidal galaxies [PDF]
, 2006 Dwarf spheroidal (dSph) galaxies are the least massive and luminous objects known to exist. These galaxies are often considered as the fossil building blocks of massive systems predicted by some cosmological models.
Koch, Andreas
core +1 more source
Unraveling the Electronic Structure of Silicon Vacancy Centers in 4H‐SiC
Advanced Functional Materials, EarlyView.The electronic structure of the silicon vacancy in 4H‐SiC is probed via transient absorption spectroscopy, uncovering previously inaccessible excited states of the quartet and doublet spin channels, including the V2' transition. In combination with theoretical analysis, a comprehensive picture of the electronic structure is established.
Ali Tayefeh Younesi +9 more
wiley +1 more source
The effect of the environment on the evolution of galaxy colours [PDF]
, 2006 In chapter 1 of this thesis, I give a brief overview of the birth of modern cosmology and the growth of the current paradigm. I then go on to describe the different types of galaxies, the star formation rates within them and give some notes about galaxy ...
Davies, Gregory Tudor
core
The physics of Galaxy Evolution with SPICA observations [PDF]
, 2020 The evolution of galaxies at Cosmic Noon (redshift 1<3) passed through a dust-obscured phase, during which most stars formed and black holes in galactic nuclei started to shine, which cannot be seen in the optical and UV, but it needs rest frame mid ...
Fernandez-Ontiveros, Juan A. +2 more
core