Results 101 to 110 of about 453,739 (281)
Detecting the Disruption of Dark-Matter Halos with Stellar Streams [PDF]
Physical Review Letters, 2016 Narrow stellar streams in the Milky Way halo are uniquely sensitive to dark-matter subhalos, but many of these subhalos may be tidally disrupted. I calculate the interaction between stellar and dark-matter streams using analytical and $N$-body calculations, showing that disrupting objects can be detected as low-concentration subhalos.
openaire +3 more sources
Advanced Functional Materials, EarlyView.Solution‐based ligand‐assisted epitaxial growth (LAEG) yields high‐quality CsPbBr3 microcrystals on different substrates with superior morphology, passivated surfaces, and high photoluminescence quantum yield. These robust micro‐resonators achieve record‐low room‐temperature lasing thresholds of 7.2 kW·cm−2 and maintain operational stability up to 90 ...
Shuyu Zhou +19 more
wiley +1 more source
Probing Atomic Dark Matter with Stellar Streams in Milky Way-mass Galaxies
The Astrophysical JournalWe present the first detailed analysis of the effects of dissipative dark matter (DM) on stellar streams. As a concrete example, we generate a cosmological hydrodynamic zoom-in simulation of a Milky Way (MW)-mass galaxy, assuming that the DM consists of ...
Lucas S. Mandacarú Guerra +9 more
doaj +1 more source
The Effect of Hydrophilic Headgroup Chemistry on Peptoid‐Directed Mineralization of CaCO3
Advanced Functional Materials, EarlyView.Amphiphilic peptoids alter the pathway and outcome of calcium carbonate crystallization, which progresses through amorphous calcium carbonate (ACC) to vaterite to calcite rhombs in the absence of peptoids. In contrast, amine‐terminated peptoids produce vaterite disks and carboxyl‐terminated peptoids produce calcite mesocrystals.
Biao Jin +5 more
wiley +1 more source
The Astrophysical JournalWe present a novel, deep-learning-based method—dubbed Galactic-Seismology Substructures and Streams Hunter, or GS ^3 Hunter for short—to search for substructures and streams in stellar kinematics data.
Guan-Yu Wang +6 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Here, we establish a low‐dose liquid‐phase electron microscopy workflow for real‐time observation of biological processes in hydrated conditions. Beam damage is reduced by imaging only 20% of the pixels and reconstructing the complete image using an inpainting algorithm.
Luco Rutten +7 more
wiley +1 more source
Fictions, Conditionals, and Stellar Astrophysics [PDF]
, 2013 This article argues in favour of an inferential role for fictions in scientific modelling. The argument proceeds by means of a detailed case study, namely models of the internal structure of stars in stellar astrophysics.
Suárez, Mauricio, Mauricio Suárez
core +1 more source
Mapping stellar streams with LSST
, 2019 Large photometric surveys like SDSS and DES have shown that the Milky Way Galaxy is littered with stellar streams; the remnants of tidally disrupted star clusters and dwarf galaxies. However these surveys were limited to either the northern sky, or only a region of the southern sky.
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Advanced Functional Materials, EarlyView.An amphiphilic GOx nanoamphizyme was constructed by covalently introducing hydrophobic PPNI linkers onto GOx, enabling spontaneous self‐assembly into tunable nanoparticles. Mild crosslinking further stabilized the assemblies and enhanced catalytic performance and stability.
Yuan‐Hao Hsiao +4 more
wiley +1 more source
StarStream: Automatic Detection Algorithm for Stellar Streams
The Astrophysical JournalThe Gaia mission has led to the discovery of over 100 stellar streams in the Milky Way, most of which likely originated from globular clusters (GCs).
Yingtian Chen +3 more
doaj +1 more source