Results 71 to 80 of about 151,167 (221)
The “dynamical clock”: dating the internal dynamical evolution of star clusters with Blue Straggler Stars [PDF]
Rendiconti Lincei. Scienze Fisiche e Naturali, 2020 We discuss the observational properties of a special class of objects (the so-called "Blue Straggler Stars", BSSs) in the framework of using this stellar population as probe of the dynamical processes occurring in high-density stellar systems. Indeed, the shape of the BSS radial distribution and their level of central concentration are powerful tracers
Ferraro F. R. +2 more
openaire +4 more sources
How to Achieve High Spatial Resolution in Organic Optobioelectronic Devices?
Advanced Materials Interfaces, EarlyView.This study explores how the optoelectronic properties of organic semiconductors impact on the resolution of light‐activated bioelectronic interfaces. Using photovoltage and photocurrent microscopy techniques, the authors show that H2PC/PTCDI heterojunctions enable a resolution down to 6.5 µm due to low carrier mobility along the heterojunction.
Luca Fabbri +9 more
wiley +1 more source
Extending MIEZE spectroscopy towards thermal wavelengths
Journal of Applied Crystallography, Volume 55, Issue 6, Page 1424-1431, December 2022., 2022 A modulation of intensity with zero effort (MIEZE) setup is proposed for high‐resolution neutron spectroscopy at momentum transfers up to 3 Å−1, energy transfers up to 20 meV and an energy resolution in the microelectronvolt range using both thermal and cold neutrons.A modulation of intensity with zero effort (MIEZE) setup is proposed for high ...
Johanna K. Jochum +3 more
wiley +1 more source
UOCS XIV: Study of the Open Cluster NGC 2627 Using UVIT/AstroSat
The Astronomical JournalWe study the intermediate-age open cluster NGC 2627, located at a distance of ∼2 kpc, using UVIT/AstroSat and other archival data. Using a machine learning-based algorithm, ML-MOC, on the Gaia DR3 data, we identify 422 cluster members, including four ...
Pinapati Saketh +2 more
doaj +1 more source
A study of the blue straggler population of the old open cluster Collinder 261 [PDF]
, 2019 Blue Stragglers are stars located in an unexpected region of the color-magnitude diagram of a stellar population, as they appear bluer and more luminous than the stars in the turnoff region. They are ubiquitous, since they have been found among Milky Way field stars, in open and globular clusters, and also in other galaxies of the Local Group.
arxiv +1 more source
This is a pre-print of a chapter for the Encyclopedia of Astrophysics (edited by I. Mandel, section editor F.R.N.
Wang, Chen, Ryu, Taeho
openaire +2 more sources
A MEMS Electromagnetic Vibration Energy Harvester with Monolithically Integrated NdFeB Micromagnets
Advanced Materials Technologies, EarlyView.50µm thick sputtered arrays of NdFeB micromagnets are directly integrated into a functional MEMS in‐plane electromagnetic vibration energy harvester. A combination of analytical modeling and numerical simulations guided the design of the magnet arrays and ad‐hoc coil, to produce a high transduction factor.
Ilona Lecerf +13 more
wiley +1 more source
An unexpected detection of bifurcated blue straggler sequences in the young globular cluster NGC 2173 [PDF]
, 2018 Bifurcated patterns of blue straggler stars in their color--magnitude diagrams have atracted significant attention. This type of special (but rare) pattern of two distinct blue straggler sequences is commonly interpreted as evidence of cluster core-collapse-driven stellar collisions as an efficient formation mechanism.
arxiv +1 more source
Tracing the Dynamical History of the Globular Cluster 47 Tucanae [PDF]
Astrophys.J.650:195-202,2006, 2006 We use two stellar populations in the globular cluster 47 Tucanae to trace its dynamical history: blue stragglers and low mass main sequence stars. We assumed that the blue stragglers were formed through stellar collisions in all regions of the cluster.
arxiv +1 more source
Advanced Photonics Research, EarlyView.A nematic liquid crystal elastomer (LCE) exhibiting dynamic laser oscillation behavior modulated by mechanical stretching and contraction is synthesized. This study investigates the influence of liquid crystal elastomer deformation characteristics on multidimensional complex microcavity laser systems.
Hongyang Zhu +4 more
wiley +1 more source