On the size and velocity distribution of cosmic dust particles entering the atmosphere. [PDF]
Geophys Res Lett, 2015 The size and velocity distribution of cosmic dust particles entering the Earth's atmosphere is uncertain. Here we show that the relative concentrations of metal atoms in the upper mesosphere, and the surface accretion rate of cosmic spherules, provide ...
Carrillo-Sánchez JD +4 more
europepmc +5 more sources
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
doaj +2 more sources
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
doaj +2 more sources
Cosmic dust in MgII absorbers [PDF]
, 2012 MgII absorbers induce reddening on background quasars. We measure this effect and infer the cosmic density of dust residing in these systems to be \Omega\ ~ 2e-6, in units of the critical density of the Universe, which is comparable to the amount of dust
Adelman-McCarthy +27 more
core +2 more sources
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
doaj +2 more sources
Characterization of large carbonaceous molecules in cosmic dust analogues and meteorites. [PDF]
Proc Int Astron Union, 2019 Sabbah H, Carlos M, Joblin C.
europepmc +3 more sources
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source