Results 91 to 100 of about 145,586 (292)

The Phase Spiral’s Origin and Evolution: Indications from Its Varying Properties across the Milky Way Disk

The Astrophysical Journal
The phase spiral is a perturbation to the vertical phase-space distribution of stars in the Milky Way disk. We study the phase spiral’s properties and how they vary with spatial position, in order to constrain its origin and evolution, as well as ...
Axel Widmark, Kiyan Tavangar, Joshua Kalish, Kathryn V. Johnston, Jason A. S. Hunt   +4 more
doaj   +1 more source

The Chemical Evolution of the Milky Way

, 1999
The field of chemical evolution modeling of the Galaxy is experiencing in the last years a phase of high activity and important achievements. There are, however, several open questions which still need to be answered. In this review I summarize what have
A Pasquali, A Renzini, AA Penzias, AI Boothroyd, B Barbuy, B Edvardsson, C Chiappini, CG Lacey, E Anders, F Matteucci, Forestini, JM Scalo, LB van den Hoek, M Tosi, M Tosi, M Tosi, M Tosi, N Prantzos, P Kroupa, PA Shaver, R Wielen, Rocha, S Boissier, S Smartt, SE Woosley, T.C. Beers, WJ Maciel, WJ Maciel   +27 more
core   +1 more source

Engineered Mycelial Scaffolds With Tunable Ultraviolet Protection, Wettability, Thermal Stability, and Spatial Mechanics

Advanced Engineering Materials, EarlyView.
Fungal mycelia grown into biodegradable scaffolds and infused with titania nanoparticles show enhanced ultraviolet shielding, thermal protection, and surface nonwettability. Properties were tuned by drying methods, revealing structure–function relationships.
Juwon S. Afolayan, Xin Zhang, Carole C. Perry   +2 more
wiley   +1 more source

The Milky Way bulge

This chapter reviews the three-dimensional structure, age, kinematics, and chemistry of the Milky Way (MW) region within ~2 kpc from its center (hereafter referred to as the 'bulge') from an observational perspective. While not exhaustive in citations, this review provides historical context and discusses the main controversies and limitations in the ...
Zoccali, Manuela, Valenti, Elena
openaire   +2 more sources

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Constraining the Milky Way Halo Accretion History with Simulated Stellar Halos: Designing the HALO7D-X Survey

The Astrophysical Journal
We present the design for HALO7D-X, a survey of the stellar halo to investigate the accretion history of the Milky Way. The survey will use a combination of Hubble Space Telescope (HST) and Gaia data for sky position and proper motions of faint stars (18 
Miranda Apfel, Kevin McKinnon, Constance M. Rockosi, Puragra Guhathakurta, Kathryn V. Johnston   +4 more
doaj   +1 more source

Windows in the Milky Way [PDF]

The objectives were twofold: (1) to study the IRAS emission levels in the vicinity of Baade's Window and in other optically transparent regions near the Galactic Center; and (2) to study the IRAS emission levels along sightlines in the Milky Way that ...
Boulanger, Francois, Okumura, Koryo, Tacconi-Garman, Lowell Evan, Waller, William H.   +3 more
core   +1 more source

Lipid Nanoparticles for the Delivery of CRISPR/Cas9 Machinery to Enable Site‐Specific Integration of CFTR and Mutation‐Agnostic Disease Rescue

Advanced Functional Materials, EarlyView.
Lipid nanoparticles (LNPs) are optimized to co‐deliver Cas9‐encoding messenger RNA (mRNA), a single guide RNA (sgRNA) targeting the endogenous cystic fibrosis transmembrane conductance regulator (CFTR) gene, and homologous linear double‐stranded donor DNA (ldsDNA) templates encoding CFTR.
Ruth A. Foley, Paul G. Ayoub, Vrishti Sinha, Colin Juett, Alicia Sanoyca, Emily C. Duggan, Lindsay E. Lathrop, Priyanka Bhatt, Kevin Coote, Beate Illek, Brigitte N. Gomperts, Donald B. Kohn, Steven J. Jonas   +12 more
wiley   +1 more source

Minimum-entropy Constraints on Galactic Potentials

The Astrophysical Journal
A tracer sample in a gravitational potential, starting from a generic initial condition, phase-mixes toward a stationary state. This evolution is accompanied by an entropy increase, and the final state is characterized by a distribution function (DF ...
Leandro Beraldo e Silva, Monica Valluri, Eugene Vasiliev, Kohei Hattori, Walter de Siqueira Pedra, Kathryne J. Daniel   +5 more
doaj   +1 more source

Dynamical Models for the Milky Way

, 1996
The only way to map the Galaxy's gravitational potential $\Phi({\bf x})$ and the distribution of matter that produces it is by modelling the dynamics of stars and gas. Observations of the kinematics of gas provide key information about gradients of $\Phi$
Binney, James, Dehnen, Walter
core