Results 61 to 70 of about 105,694 (241)

Cosmic Sands: The Origin of Dusty, Star-forming Galaxies in the Epoch of Reionization

open access: yesThe Astrophysical Journal, 2023
We present the Cosmic Sands suite of cosmological zoom-in simulations based on the simba galaxy formation model in order to study the buildup of the first massive and dusty galaxies in the early universe.
Sidney Lower   +3 more
doaj   +1 more source

Mid‐Infrared Integrated Photonics: Material Platforms and Emerging Applications

open access: yesLaser &Photonics Reviews, EarlyView.
Mid‐infrared (MIR) integrated photonics enables advanced chemical and biological sensing through the unique absorption features of molecules in the 2–20 µm range. This review highlights recent material advances such as chalcogenide glasses, silicon, and graphene and explores MIR applications in environmental monitoring, medical diagnostics ...
Muhammad Ali Butt   +2 more
wiley   +1 more source

Illuminating the Dark Side of Cosmic Star Formation. II. A Second Date with RS-NIRdark Galaxies in COSMOS

open access: yesThe Astrophysical Journal, 2023
About 12 billion years ago, the Universe was first experiencing light again after the dark ages, and galaxies filled the environment with stars, metals, and dust. How efficient was this process? How fast did these primordial galaxies form stars and dust?
Meriem Behiri   +14 more
doaj   +1 more source

Holocene Glacial–Paraglacial–Periglacial Transitions of a Sub‐Arctic Glacial Cirque, Fremri‐Grasárdalur, Northern Iceland

open access: yesPermafrost and Periglacial Processes, EarlyView.
ABSTRACT The aim of this work is to study a variety of glacial, periglacial and paraglacial features found in a small cirque, Fremri‐Grasárdalur, in Tröllaskagi (Northern Iceland). We implement a multidisciplinary approach combining high‐resolution geomorphological mapping, horizontal/vertical boulder displacement (from 1994 to 2019) and surface ...
Javier Santos‐González   +13 more
wiley   +1 more source

Direct measurement of bidirectional turbulent fluxes of atmospheric cluster ions

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
First direct eddy covariance measurements of vertical turbulent fluxes of atmospheric cluster ions are presented. The net turbulent flux was mostly positive for negative cluster ions (net emission of negative ions) and mostly negative for positive cluster ions (net deposition of positive ions).
Luzie Kamecke   +2 more
wiley   +1 more source

Tracing the History of Obscured Star Formation with the SIMBA Cosmological Galaxy Evolution Simulation

open access: yesThe Astrophysical Journal
We explore the cosmic evolution of the fraction of dust-obscured star formation predicted by the simba cosmological hydrodynamic simulations featuring an on-the-fly model for dust formation, evolution, and destruction.
Dhruv T. Zimmerman   +3 more
doaj   +1 more source

Disentangling accretion disk and dust emissions in the infrared spectrum of type 1 AGN

open access: yes, 2017
We use a semi-empirical model to reproduce the 0.1-10um spectral energy distribution (SED) of a sample of 85 luminous quasars. In the model, the continuum emission from the accretion disk as well as the nebular lines are represented by a single empirical
Almudena Alonso-Herrero   +4 more
core   +2 more sources

Andrias Davidianus Peptide Hydrogel Enables Sustained SR9011 Release to Promote Efferocytosis and Alleviate Colitis

open access: yesSmall, EarlyView.
NR1D1 suppresses epithelial CD47 transcription to promote efferocytosis by macrophages. In UC, NR1D1 expression is diminished, leading to CD47 upregulation, inhibition of apoptotic cell clearance, and exacerbation of intestinal inflammation. Restoring rhythmic NR1D1 activation using SR9011‐loaded bioadhesive hydrogel enhances efferocytosis, improves ...
Yidong Chen   +7 more
wiley   +1 more source

Star Formation and Dust in the Cosmic Web

open access: yesThe Astrophysical Journal
The large-scale environment of the cosmic web is believed to impact galaxy evolution, but there is still no consensus regarding the mechanisms. We use a semi-analytic model (SAM) galaxy catalog to study the star formation and dust content of local ...
Massimiliano Parente   +10 more
doaj   +1 more source

Report on opportunities and/or techniques for high-caliber experimental research (other) proposals for SSPEX [PDF]

open access: yes
Brief discriptions of the following 13 experiments are included: ultrahigh vacuum petrology facility; artificial comet free flyer; artificial comet (tethered); cosmic dust detector; cosmic dust collector; dust collection using tethered satellites ...
Corso, G.   +8 more
core   +1 more source

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