Results 91 to 100 of about 185,159 (346)
Stellar indices and kinematics in Seyfert 1 nuclei [PDF]
Monthly Notices of the Royal Astronomical Society, 2000 To appear in MNRAS, 18 pages, 9 ...
Jiménez Benito, Luis +3 more
openaire +5 more sources
The Oceanus Moving Group: A New 500 Myr Old Host for the Nearest Brown Dwarf
The Astrophysical Journal, 2023 We report the discovery of the Oceanus moving group, a ≈500 Myr old group with 50 members and candidate members at distances 2–50 pc from the Sun, using an unsupervised clustering analysis of nearby stars with Gaia DR3 data.
Jonathan Gagné +7 more
doaj +1 more source
Elastic‐Wave Propagation in Chiral Metamaterials: A Couple‐Stress Theory Perspective
Advanced Engineering Materials, EarlyView.The intrinsic chirality of chiral metamaterials renders an effective medium based on the classical continuum theory ineffective for predicting their acoustic activity. This limitation is addressed in the present study by employing augmented asymptotic homogenization to derive a couple‐stress‐based effective medium, enabling accurate predictions in the ...
Shahin Eskandari +5 more
wiley +1 more source
ESCARGOT: Mapping Vertical Phase Spiral Characteristics Throughout the Real and Simulated Milky Way
The Astrophysical Journal, 2023 The recent discovery of a spiral pattern in the vertical kinematic structure in the solar neighborhood provides a prime opportunity to study nonequilibrium dynamics in the Milky Way from local stellar kinematics.
Elise Darragh-Ford +3 more
doaj +1 more source
Advanced Functional Materials, EarlyView.The electroplating of a CrCoNi medium‐entropy alloy is achieved using a mixture of an ionic liquid and an aqueous solution containing metal salts. The CrCoNi medium‐entropy alloy thin film exhibits high wear and corrosion resistance superior to conventional hard chromium coatings. Abstract High‐entropy alloys (HEAs) and medium‐entropy alloys (MEAs) are
Yuki Murakami +7 more
wiley +1 more source
Kinematic Detection of the Galactic Nuclear Disc
, 2015 We report the detection of the Galactic nuclear disc in line-of-sight kinematics of stars, measured with infrared spectroscopy from APOGEE. This stellar component of the nuclear disc has an extent and rotation velocity V ~ 120kms comparable to the gas ...
Aumer, Michael +2 more
core +1 more source
Advanced Functional Materials, EarlyView.Starting from an experimental database, a physically‐based machine learning approach is used to gain new insights into spider silk supercontraction. These insights inspire a microstructure‐based analytical model that quantitatively predicts supercontraction based on protein primary structure properties. New experiments to further elucidate the physical
Vincenzo Fazio +4 more
wiley +1 more source
Molecular gas in NUclei of GAlaxies (NUGA) XV. Molecular gas kinematics in the inner 3kpc of NGC6951 [PDF]
, 2011 Within the NUclei of GAlaxies project we have obtained IRAM PdBI and 30m 12CO(1-0) and 12CO(2-1) observations of the spiral galaxy NGC 6951. Previous work shows that there is indirect evidence of gas inflow from 3 kpc down to small radii: a large-scale ...
Baker, A. J. +8 more
core +3 more sources
Kinematics and stellar disk modeling of lenticular galaxies [PDF]
Astrophysical Bulletin, 2012 18 pages, 6 figures, slightly shortened ...
S. S. Kaisin +4 more
openaire +3 more sources
The Astrophysical Journal LettersUsing numerical simulations of a barred disk galaxy embedded in nonspinning and spinning dark matter (DM) halos, we present a novel mechanism of “cooling” the vertical oscillations of DM particles, which acquire disk kinematics.
Xingchen Li +3 more
doaj +1 more source