Results 61 to 70 of about 151,849 (119)

Galaxy Classification Using EWGC

open access: yesUniverse
The Enhanced Wide-field Galaxy Classification Network (EWGC) is a novel architecture designed to classify spiral and elliptical galaxies using Wide-field Infrared Survey Explorer (WISE) images.
Yunyan Nie   +6 more
doaj   +1 more source

Supermassive black holes in six triaxial galaxies: Insights from SINFONI and MUSE observations

open access: yesAstronomy & Astrophysics
Dynamical modelling can be used to constrain the masses of central black holes, but it is challenging to model massive galaxies because of their complex kinematics.
Thater Sabine   +7 more
doaj   +1 more source

Small and Complex. I. The Three-component Structure of z ∼ 0 Massive Compact Quiescent Galaxies

open access: yesThe Astrophysical Journal
We investigate the morphology and structural properties of 246 massive compact quiescent galaxies (MCGs; $\mathrm{log}{M}_{\star }\sim 10$ –11, σ _e  ∼ 150–350 km s ^−1 , R _e  ∼ 0.7–2.5 kpc) at z  ∼ 0, selected as outliers in the stellar mass–velocity ...
Katia Slodkowski Clerici   +8 more
doaj   +1 more source

DeepDive: A deep dive into the physics of the first massive quiescent galaxies in the Universe

open access: yesAstronomy & Astrophysics
We present the DeepDive program, in which we obtained deep (1 − 3 hours) JWST/NIRSpec G235M/F170LP spectra for ten primary massive (log(M★/M⊙) = 10.8 − 11.5) quiescent galaxies at z ∼ 3 − 4.
Ito K.   +28 more
doaj   +1 more source

Mapping the dynamics, star-formation rates, and chemical properties of galaxies with integral field spectroscopy [PDF]

open access: yes, 2005
Major advances in the development of instruments for eight and ten meter class telescopes are revolutionising our understanding of galaxy formation. In particular, Integral Field Spectrographs (which produce a three dimensional {x, y, velocity) map of a ...
Swinbank, Anthony Mark   +1 more
core  

Driver behind the bimodal distribution of Eddington-scaled radio luminosity in nearby early-type galaxies

open access: yesAstronomy & Astrophysics
Context. Early-type galaxies host low-luminosity active galactic nuclei, as indicated by radio emission spanning up to several orders of magnitude in terms of the physical scale, ranging from compact parsec-scale to extended kiloparsec-scale radio ...
Wójtowicz A.   +3 more
doaj   +1 more source

Rapid quenching and early gas depletion in the core of a galaxy protocluster at z=2.2

open access: yesAstronomy & Astrophysics
Understanding how galaxy evolution is affected in forming high-z overdensities is a major open question in modern astrophysics. Here, we present the average properties of the quiescent galaxy population recently identified in the core of the Spiderweb ...
D’Eugenio C.   +8 more
doaj   +1 more source

Probing the effect of the protocluster environment on galaxy morphology at z = 2.23

open access: yesAstronomy & Astrophysics
Context. As galaxies evolve in dense cluster and protocluster environments, they interact and quench their star formation. This gradually transforms the dominant galaxy population from star-forming galaxies to quiescent red galaxies.
Golden-Marx E.   +9 more
doaj   +1 more source

Velocity dispersion functions of pressure-supported galaxies in EAGLE simulations with varying active galactic nucleus feedback

open access: yesAstronomy & Astrophysics
We investigated the stellar velocity dispersion functions (VDFs) of pressure-supported galaxies in the EAGLE cosmological simulations. The central stellar velocity dispersion is one of the fundamental dynamical tracers of the total mass of galaxy ...
Choi Jungwon, Sohn Jubee
doaj   +1 more source

Euclid Quick Data Release (Q1)

open access: yesAstronomy & Astrophysics
We present a detailed visual morphology catalogue for the Euclid Quick Release 1 (Q1). Our catalogue includes galaxy features such as bars, spiral arms, and ongoing mergers, for the 378 000 bright (IE 
Walmsley M.   +354 more
doaj   +1 more source

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