The fate of disc galaxies in IllustrisTNG clusters
Sign Up to like & getrecommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa1668
Abstract: We study the stellar morphological evolution of disc galaxies within clusters in the TNG50 and TNG100 runs from the IllustrisTNG simulation suite. We select satellites of masses $10^{9.7} \leq M_{*,z=0}/\text{M}_{\odot} \leq 10^{11.6}$ residing in clusters… read more here.
Keywords: control; cluster discs; accretion; discs ... See more keywords
Highly turbulent gas on GMC scales in NGC 3256, the nearest luminous infrared galaxy
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DOI: 10.1093/mnras/staa3425
Abstract: We present the highest resolution CO (2-1) observations obtained to date (0.25") of NGC 3256 and use them to determine the detailed properties of the molecular interstellar medium in the central 6 kpc of this… read more here.
Keywords: disc galaxies; turbulent gas; phangs alma; highly turbulent ... See more keywords
How does dark matter stabilize disc galaxies?
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DOI: 10.1093/mnras/stae1737
Abstract: The study presents a theoretical framework for understanding the role of dark matter on the stability of the galactic disc. We model the galaxy as a two-component system consisting of stars and gas in equilibrium… read more here.
Keywords: dark matter; stability; matter halo; matter ... See more keywords
The origin of the Hα line profiles in simulated disc galaxies
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DOI: 10.1093/mnras/stae2099
Abstract: Observations of ionised Hα gas in high-redshift disc galaxies have ubiquitously found significant line broadening, σHα ∼ 10 − 100 km s−1. To understand whether this broadening reflects gas turbulence within the interstellar medium (ISM) of galactic… read more here.
Keywords: hii regions; line profiles; gas; emission ... See more keywords
Disc asymmetry characterisation in JWST-observed galaxies at 1 < z < 4
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DOI: 10.1093/mnras/staf549
Abstract: We present a novel technique using Fourier series and Laguerre polynomials to represent morphological features of disc galaxies. To demonstrate the utility of this technique, we study the evolution of disc asymmetry in a sample… read more here.
Keywords: disc asymmetry; asymmetry characterisation; asymmetry; mass galaxies ... See more keywords
Bright compact bulges at intermediate redshifts
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DOI: 10.1093/mnras/sty1084
Abstract: Studying bright ($M_B read more here.
Keywords: disc galaxies; bright compact; compact bulges; classical pseudo ... See more keywords
The origin of the structure of large-scale magnetic fields in disc galaxies
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DOI: 10.1093/mnras/sty604
Abstract: The large-scale magnetic fields observed in spiral disc galaxies are often thought to result from dynamo action in the disc plane. However, the increasing importance of Faraday depolarization along any line of sight towards the… read more here.
Keywords: large scale; disc galaxies; magnetic fields; origin structure ... See more keywords
Formation of disc galaxies around z ∼ 2
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DOI: 10.1093/mnras/stz1417
Abstract: We present combined evolution of morphological and stellar properties of galaxies on the two sides of z=2 (2.0 2 to ~70% for z 2 to z read more here.
Keywords: disc galaxies; galaxies around; formation disc; formation ... See more keywords
Instabilities in disc galaxies: from noise to grooves to spirals
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DOI: 10.1093/mnras/stz166
Abstract: Using the linearized Boltzmann equation, we investigate how grooves carved in the phase space of a half-mass Mestel disc can trigger the vigorous growth of two-armed spiral eigenmodes. Such grooves result from the self-induced dynamics… read more here.
Keywords: disc galaxies; instabilities disc; galaxies noise; grooves spirals ... See more keywords
Structural diversity of disc galaxies originating in the cold gas inflow from cosmic webs
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DOI: 10.1093/mnrasl/slaa017
Abstract: Disc galaxies show a large morphological diversity with varying contribution of three major structural components; thin discs, thick discs, and central bulges. Dominance of bulges increases with the galaxy mass (Hubble sequence) whereas thick discs… read more here.
Keywords: disc galaxies; diversity; cold gas; accretion ... See more keywords