Results 81 to 90 of about 439,382 (287)

Extragalactic stellar tidal streams in the Dark Energy Survey [PDF]

Context. Stellar tidal streams are a key tracer of galaxy evolution and have the potential to provide an indirect means for tracing dark matter. For the Local Group, many diffuse substructures have been identified and their link to galaxy evolution has ...
Mohammad Akhlaghi, David Martínez-Delgado, Kuijken, Konrad, Makarov, Dmitry,, Donatiello, Giuseppe,, Kuijken, Konrad,, Juan Miró-Carretero, Roca Fábrega, Santi, Laine, Seppo, Akhlaghi, Mohammad,, Makarov, Dmitry, Gómez-Flechoso, María A., Seppo Laine, Gómez Flechoso, María De Los Ángeles, Lang, Dustin,, Martínez-Delgado, David, Laine, Seppo,, Cooper, Andrew, Roca-Fàbrega, Santi,, Lang, Dustin, Roca-Fàbrega, Santi, Cooper, Andrew,, Gómez-Flechoso, María A.,, Konrad Kuijken, María A. Gómez-Flechoso, Donatiello, Giuseppe, Santi Roca-Fàbrega, Giuseppe Donatiello, Andrew Cooper, Dmitry Makarov, Akhlaghi, Mohammad, Miró-Carretero, Juan,, Martínez-Delgado, David,, Dustin Lang, Miró-Carretero, Juan, Lund University.   +35 more
core   +1 more source

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

Advanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner, Dhananjeya Kumaar, Giacomo Torti, Killian Keller, Till Zellweger, Florian M. Schenk, Christoph Weilenmann, Daniel Chelladurai, Vara Prasad Jonnalagadda, Ghazi Sarwat Syed, Vanessa Wood, Jürg Leuthold, Alexandros Emboras, Maksym Yarema, Mathieu Luisier   +14 more
wiley   +1 more source

Slant, Fan, and Narrow: The Response of Stellar Streams to a Tilting Galactic Disk

The Astrophysical Journal
Stellar streams are sensitive tracers of the gravitational potential, which is typically assumed to be static in the inner Galaxy. However, massive mergers like Gaia-Sausage-Enceladus can impart torques on the stellar disk of the Milky Way that result in
Jacob Nibauer, Ana Bonaca, Mariangela Lisanti, Denis Erkal, Zoe Hastings   +4 more
doaj   +1 more source

Stellar streams around dwarf galaxies in the local Universe

Astronomy & Astrophysics
Context. While mergers between massive galaxies and their dwarf satellites have been well studied, the properties of dwarf–dwarf satellite mergers are not well constrained.
Sakowska Joanna D., Martínez-Delgado David, Pearson Sarah, Riquel-Castilla Francisco J., Starkenburg Tjitske K., Donatiello Giuseppe, Deason Alis, Erkal Denis, Taylor Ethan D.   +8 more
doaj   +1 more source

Conformational Switching of Proteins on Material Surfaces Enabled by Peptide‐Oriented Adsorption

Advanced Functional Materials, EarlyView.
Responsive biointerfaces could be achieved using conformationally responsive proteins; however, their interconversion can be lost upon surface adsorption. Herein, we demonstrate that the incorporation a Au binding peptide into calmodulin allows for binding control on Au wherein the protein retains conformational switching. This capability was confirmed
Sakthirupini Ramamurthy, Kyle B. Meerbott, Lorenzo Travaglini, Garima S. Dobhal, Artur Sawicki, Marc R. Knecht, Tiffany R. Walsh, Dominic J. Glover   +7 more
wiley   +1 more source

StarStream on Gaia: Stream Discovery and Mass-loss Rate of Globular Clusters

The Astrophysical Journal Supplement Series
We apply the automatic stellar stream detection algorithm StarStream to Gaia Data Release 3 and identify 87 stellar streams associated with Galactic globular clusters (GCs), including 34 high-quality cases with median completeness and purity both ...
Yingtian Chen, Oleg Y. Gnedin, Adrian M. Price-Whelan   +2 more
doaj   +1 more source

Bacterial Cellulose‐Based Bilayer Passive Cooler for High‐Performance Radiative/Evaporative Cooling

Advanced Functional Materials, EarlyView.
A sustainable bilayer passive cooler based on bacterial cellulose integrates radiative and evaporative cooling for efficient zero‐energy temperature reduction. The scalable, low‐carbon material shows strong potential for food preservation, low‐temperature storage, and cold‐chain logistics.
Yibing Zhang, Da‐Wen Sun, Liang Xu, You Tian, Libin Sun, Rui Hu, Shiwei Zheng   +6 more
wiley   +1 more source

Contrastive learning of extragalactic stellar streams

Astronomy & Astrophysics
We present a self-supervised approach for characterizing low-surface-brightness tidal features in wide-field imaging data by applying the nearest-neighbor contrastive learning of visual representations (NNCLR) algorithm to a curated subset of the Dark ...
Benitez-Walz Ernesto, Mes Jelle, Miró-Carretero Juan, Kuijken Koen, Helmi Amina   +4 more
doaj   +1 more source

Programming Nanoscale Reaction Environments via Peptide Localization for Gold Nanoparticle Growth in Liposomal Nanoreactors

Advanced Functional Materials, EarlyView.
The liposome nanoreactor method enables uniform metal nanoparticle synthesis using the interior as a reaction environment. We demonstrate that peptide sequences and lipid compositions act as a functional molecular switch to control reaction environments in liposome nanoreactors.
Yuya Abe, Joseph Fox, Zabeada Aslam, Kevin Critchley, Stephen D. Evans, Mina Okochi, Masayoshi Tanaka   +6 more
wiley   +1 more source

Functional Differentiation of Type II and Type I Collagen Articular Models in Synovial Fluid Film Formation and Recombinant Equine Lubricin Retention

Advanced Functional Materials, EarlyView.
Collagen II coatings support the formation of synovial fluid nanofilms, while collagen I coatings do not. Both bind recombinant equine lubricin similarly. These findings may help explain articular cartilage surface joint dysfunction, inform biomaterial design for synovial joint repair, and expand on lubricin‐based osteoarthritis therapies.
Diego R. Jaramillo Pinto, Nicolas L. Mendoza, Syeda Tajin Ahmed, Yidan Wen, Lenka Vitkova, Spencer M. Witt, Kaleb A. Cutter, Ummay Honey, Matthew J. Paszek, Heidi L. Reesink, Lawrence J. Bonassar, Kevin De France, Roberto C. Andresen Eguiluz   +12 more
wiley   +1 more source