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A Comprehensive Model of Morphologically Realistic Cosmic Dust Particles: An Application to Mimic the Unusual Polarization Properties of the Interstellar Comet 2I/Borisov [PDF]
The Astrophysical Journal, 2023 The cosmic dust particles found in space are mainly porous aggregates of smaller grains. Theoretically, these aggregates are replicated using fractal geometry, assuming a cluster of spheres.
Prithish Halder, Sujan Sengupta
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Missing Giants: Predictions on Dust-obscured Galaxy Stellar Mass Assembly Throughout Cosmic Time [PDF]
The Astrophysical Journal, 2023 Due to their extremely dust-obscured nature, much uncertainty still exists surrounding the stellar mass growth and content in dusty, star-forming galaxies (DSFGs) at z > 1. In this work, we present a numerical model built using empirical data on DSFGs to
Arianna S. Long +7 more
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Cosmic Infrared Background Tomography and a Census of Cosmic Dust and Star Formation
The Astrophysical JournalThe cosmic far-infrared background (CIB) encodes dust emission from all galaxies and carries valuable information on structure formation, star formation, and chemical enrichment across cosmic time.
Yi-Kuan Chiang +2 more
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Simulation of grid morphology’s effect on ion optics and the local electric field
AIP Advances, 2022 Electric field ion optics are employed by many scientific instruments for investigating ions, e.g., using time-of-flight mass spectrometers. A common design feature of such instruments is the grounded grid that provides boundaries between regions that ...
Z. Levin, S. Kempf
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Analyzing LDEX's Current Measurements in Lunar Orbit
The Planetary Science Journal, 2023 The Lunar Dust Experiment (LDEX) on board the Lunar Atmosphere and Dust Environment Explorer mission orbited the Moon from 2014 September to 2015 April and observed a dynamic, permanently present dust cloud produced by continual meteoroid bombardment. In
Edwin Bernardoni +2 more
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Considering light-matter interactions in Friedmann equations based on the conformal FLRW metric
Journal of Advanced Research, 2023 Introduction: Recent observations indicate that the Universe is not transparent but partially opaque due to absorption of light by ambient cosmic dust. This implies that the current cosmological model valid for the transparent universe must be modified ...
Václav Vavryčuk
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Investigation of Dust Grains by Optical Tweezers for Space Applications
The Astrophysical Journal, 2022 Cosmic dust plays a dominant role in the universe, especially in the formation of stars and planetary systems. Furthermore, the surface of cosmic dust grains is the benchwork where molecular hydrogen and simple organic compounds are formed. We manipulate
A. Magazzù +13 more
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Cosmic dust evolution: The challenges for NIKA2 [PDF]
EPJ Web of Conferences, 2022 I summarize a recent study aimed at constraining dust evolution timescales in nearby galaxies. We were able to quantify the effciency of dust condensation in SN II ejecta, grain growth in the ISM and dust destruction by SN II blast waves.
Galliano Frédéric
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AGB Winds with Gas-Dust Drift in Stellar Evolution Codes
Universe, 2021 A significant fraction of new metals produced in stars enter the interstellar medium in the form of dust grains. Including dust and wind formation in stellar evolution models of late-stage low- and intermediate-mass stars provides a way to quantify their
Lars Mattsson, Christer Sandin
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Odessa Astronomical Publications, 2020 Cosmic-ray induced γ-ray emission in active galactic nuclei (AGN) has been examined in this study for the first time. Cross-sections for the formation of γ-quanta in such cosmic-ray collisions were selected in the 1-150 MeV energy range.
D. N. Doikov
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