Modeling Dust Production, Growth, and Destruction in Reionization-era Galaxies with the CROC Simulations. II. Predicting the Dust Content of High-redshift Galaxies [PDF]
Astrophysical Journal, 2023 We model the interstellar dust content of the reionization era with a suite of cosmological, fluid-dynamical simulations of galaxies with stellar masses ranging from ∼105 to 109 M ⊙ in the first 1.2 Gyr of the Universe.
C. Esmerian, N. Gnedin
semanticscholar +1 more source
Internal and External Alignment of Carbonaceous Grains within the Radiative Torque Paradigm
The Astrophysical Journal, 2023 We study the internal and external alignment of carbonaceous grains in the interstellar medium (ISM) within the Radiative Torque (RAT) paradigm.
Thiem Hoang +2 more
doaj +1 more source
DustPy: A Python Package for Dust Evolution in Protoplanetary Disks [PDF]
Astrophysical Journal, 2022 Many processes during the evolution of protoplanetary disks and during planet formation are highly sensitive to the sizes of dust particles that are present in the disk: the efficiency of dust accretion in the disk and volatile transport on dust ...
S. Stammler, T. Birnstiel
semanticscholar +1 more source
Bridging the Gap between Protoplanetary and Debris Disks: Separate Evolution of Millimeter and Micrometer-sized Dust [PDF]
Astrophysical Journal, 2021 The connection between the nature of a protoplanetary disk and that of a debris disk is not well understood. Dust evolution, planet formation, and disk dissipation likely play a role in the processes involved.
A. Michel +2 more
semanticscholar +1 more source
Collisional Growth and Fragmentation of Dust Aggregates. II. Mass Distribution of Icy Fragments [PDF]
Astrophysical Journal, 2022 By performing N-body simulations, we investigated the fundamental processes of collisions between dust aggregates composed of submicron-sized icy dust monomers. We examined the mass distribution of fragments in the collisional outcomes in a wide range of
Y. Hasegawa +4 more
semanticscholar +1 more source
Impact of Dust Size Distribution Including Large Dust Grains on Magnetic Resistivity: An Analytical Approach [PDF]
Astrophysical Journal, 2022 This paper investigates the impact of dust size distribution on magnetic resistivity. In particular, we focus on its impact when the maximum dust size significantly increases from a submicron level.
Y. Tsukamoto, S. Okuzumi
semanticscholar +1 more source
Effects of Barnett Magnetic Dipole–Dipole Interaction on Grain Growth and Destruction
The Astrophysical Journal, 2023 Rapidly spinning magnetic grains can acquire large magnetic dipole moments due to the Barnett effect. Here we study the new effect of Barnett magnetic dipole–dipole interaction on grain–grain collisions and grain growth, assuming that grains are spun up ...
Thiem Hoang, Bao Truong
doaj +1 more source
Supernova Dust Evolution Probed by Deep-sea 60Fe Time History
The Astrophysical Journal, 2023 There is a wealth of data on live, undecayed ^60 Fe ( t _1/2 = 2.6 Myr) in deep-sea deposits, the lunar regolith, cosmic rays, and Antarctic snow, which is interpreted as originating from the recent explosions of at least two near-Earth supernovae.
Adrienne F. Ertel +3 more
doaj +1 more source
ATOMIUM: ALMA tracing the origins of molecules in dust forming oxygen rich M-type stars. Motivation, sample, calibration, and initial results [PDF]
Astronomy & Astrophysics, 2021 This overview paper presents ATOMIUM, a Large Programme in Cycle 6 with the Atacama Large Millimeter-submillimeter Array (ALMA). The goal of ATOMIUM is to understand the dynamics and the gas phase and dust formation chemistry in the winds of evolved ...
C. Gottlieb +35 more
semanticscholar +1 more source
The Photospheric Temperatures of Betelgeuse during the Great Dimming of 2019/2020: No New Dust Required [PDF]
Astrophysical Journal, 2020 The processes that shape the extended atmospheres of red supergiants, heat their chromospheres, create molecular reservoirs, drive mass loss, and create dust remain poorly understood.
G. Harper +3 more
semanticscholar +1 more source