Results 61 to 70 of about 2,101,430 (372)
Thick disk kinematics from RAVE and the solar motion [PDF]
, 2012 Radial velocity surveys such as the Radial Velocity Experiment (RAVE) provide us with measurements of hundreds of thousands of nearby stars most of which belong to the Galactic thin, thick disk or halo. Ideally, to study the Galactic disks (both thin and
A. Silviero +125 more
core +2 more sources
Journal of Topology and Analysis, 2019 We answer a question of Liokumovich–Nabutovsky–Rotman showing that if [Formula: see text] is a Riemannian 2-disk with boundary length [Formula: see text], diameter [Formula: see text] and area [Formula: see text] then [Formula: see text] can be filled by a homotopy [Formula: see text] with [Formula: see text] bounded by [Formula: see text].
openaire +3 more sources
Journal of Fluid Mechanics, 2023 We experimentally investigate the settling of millimetre-sized thin disks in quiescent air. The range of physical parameters is chosen to be relevant to plate crystals settling in the atmosphere: the diameter-to-thickness aspect ratio is$\chi =25\unicode{x2013}60$, the Reynolds numbers based on the disk diameter and fall speed are$Re=O(10^2)$and the ...
Amy Tinklenberg +2 more
openaire +1 more source
Mode-locked thin-disk lasers and their potential application for high-power terahertz generation
, 2018 The progress achieved in the last few decades in the performance of ultrafast laser systems with high average power has been tremendous, and continues to provide momentum to new exciting applications, both in scientific research and technology. Among the
C. Saraceno
semanticscholar +1 more source
Kerr-Lens Mode-Locked 2-μm Thin-Disk Lasers
IEEE Journal of Selected Topics in Quantum Electronics, 2018 Thin-disk technology uniquely enables the simultaneous scaling of both average and peak powers, while maintaining an excellent beam profile. It has been widely adopted in the 1-μm region, not only for continuous wave lasers but also for pulsed ...
Jinwei Zhang, K. Mak, O. Pronin
semanticscholar +1 more source
Observational signatures of strongly naked singularities: image of the thin accretion disk [PDF]
The European Physical Journal C, 2020 We study the optical appearance of a thin accretion disk around the strongly naked static Janis–Newman–Winicour singularity. The solution does not possess a photon sphere, which results in the formation of a complex structure of bright rings in the ...
G. Gyulchev +4 more
semanticscholar +1 more source
Research Paper: Producing High Average Power Pulses From the Yb:YAG Thin-disk Active Medium with Acousto-optic Modulator [PDF]
فیزیک کاربردی ایرانIn recent years, thin-disk active media geometry has facilitated the development of pulsed and continuous laser sources with extremely high output powers. In this study, the technique of Q-switching utilizing an acousto-optic modulator and a Yb: YAG thin-
Kaveh Pasandideh +3 more
doaj +1 more source
Elemental Abundance Survey of The Galactic Thick Disk
, 2005 [Abridged abstract] We have performed an abundance analysis for 176 F- and G- dwarfs of the Galactic thick disk component. Using accurate radial velocities combined with $Hipparcos$ astrometry, kinematics (U, V, and W) and Galactic orbital parameters ...
Lambert, David L. +2 more
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Oxygen Abundances in Nearby Stars. Clues to the formation and evolution of the Galactic disk [PDF]
, 2006 The abundances of iron and oxygen are homogeneously determined in a sample of 523 nearby ...
Abadi +125 more
core +2 more sources
, 2013 We analyze high quality abundances data of solar neighborhood stars and show that there are two distinct regimes of [alpha/Fe] versus age which we identify as the epochs of the thick and thin disk formation.
Di Matteo, P. +4 more
core +2 more sources