Results 61 to 70 of about 324 (227)

A Search for Magnetically Active Binary Counterparts to Chandra X-Ray Sources in 47 Tucanae with HST Imaging

The Astrophysical Journal
Using Hubble Space Telescope (HST) imaging, we searched for candidate magnetically active binary (AB) counterparts to low-luminosity Chandra X-ray sources in the globular cluster 47 Tucanae (NGC 104). We consider the catalog of 300 Chandra sources within
Haldan N. Cohn, Phyllis M. Lugger, Craig O. Heinke, Maureen van den Berg, Liliana Rivera Sandoval, Jay Anderson   +5 more
doaj   +1 more source

A blue-straggler merger scenario origin for the γ Persei binary system

Astronomy & Astrophysics
We used MIST isochrone fitting and a dedicated grid of stellar evolution models computed with MESA to constrain the ages of the components of the γ Persei binary system.
Tarczay-Nehéz Dóra, Molnár László, Ádám Rozália Z.   +2 more
doaj   +1 more source

Color Gradients Within Globular Clusters: Restricted Numerical Simulation [PDF]

Journal of Astronomy and Space Sciences, 1997
The results of a restricted numerical simulation for the color gradients within globular clusters have been presented. The standard luminosity function of M3 and Salpeter's initial mass functions were used to generate model clusters as a fundamental ...
Young-Jong Sohn, Mun-Suk Chun
doaj  

FAST ROTATING BLUE STRAGGLERS IN THE GLOBULAR CLUSTER M4 [PDF]

The Astrophysical Journal, 2010
16 pages, 4 figures, ApJL ...
Lovisi L., MUCCIARELLI, ALESSIO, FERRARO, FRANCESCO ROSARIO, Lucatello S., LANZONI, BARBARA, DALESSANDRO, EMANUELE, Beccari G., Rood R. T., Sills A., Fusi Pecci F., Gratton R., Piotto G.   +11 more
openaire   +4 more sources

Human‐Scale Rotating Magnetic Field Delivery With Permanent Magnets Under Anatomic and Robotic Constraints

Advanced Robotics Research, EarlyView.
Rotating magnetic fields (RMFs) are widely used for microrobot propulsion and control. We show that RMF generation with permanent magnets is mechanically feasible for many limb and intracranial applications but becomes constrained for thoracic targets.
Tuan‐Anh Le, Husnu Halid Alabay, Anika Sivarasa, Gia‐Minh Hoang, Hakan Ceylan   +4 more
wiley   +1 more source

The role of mass transfer efficiency in stability criteria: Implementation in SEVN and a test on blue stragglers and binary compact objects

Astronomy & Astrophysics
Context. The stability of mass transfer through Roche-lobe overflow plays a key role in shaping the outcome of binary interactions. However, the criterion for mass transfer stability remains one of the main open questions in the theory of binary ...
Echeveste M., Escobar G. J., Iorio G., Pancino E., Mapelli M., Alvarez Garay D., Avdeeva A., Leitinger E., Nedhath S., Rani S., Reggiani E., Sanna N., Saracino S., Steinbauer L., Turchi A.   +14 more
doaj   +1 more source

Modeling the radial distribution of blue stragglers in M3

The Astrophysical Journal, 1994
Recent surveys of the blue straggler (BS) population in the galactic globular cluster M3 (NGC 5272) give the first complete characterization of the number density of BSs as a function of radius over an entire globular cluster. The BSs in M3 are overabundant at large radii, and significantly underabundant at intermediate radii.
Sigurdsson, Steinn, Davies, Melvyn B., Bolte, Michael   +2 more
openaire   +2 more sources

Laser‐Induced Ultrafast Magnetic Phase Transition in 2D Van Der Waals Antiferromagnetic Heterostructures

Advanced Science, EarlyView.
In this work, ultrafast laser‐induced spin transfer and spin relaxation dynamics in 2D van der Waals antiferromagnetic CrI3/CrGeTe3 heterostructures are investigated. Laser excitation is demonstrated to induce pronounced interlayer nonequilibrium spin dynamics and ultrafast magnetic moment reconstruction, driving a transition from an antiferromagnetic (
Yang Wu, Fulu Zheng, San‐Dong Guo, Thomas Frauenheim, Zhaobo Zhou, Junjie He   +5 more
wiley   +1 more source

Diverse Landscape of Tunable Magnetic, Topological, and Ferroelectric States in 2D Ti3Se3Te2

Advanced Science, EarlyView.
Ti3Se3Te2 emerges as a multifunctional 2D van der Waals platform. The monolayer is a dynamically stable ferromagnetic quantum anomalous Hall insulator. In bilayers, two stacking configurations yield distinct phases: AA‐stacking hosts an altermagnetic quantum spin Hall insulator, while AA′‐stacking exhibits three‐state in‐plane ferroelectricity ...
Jiangtao Yu, Jingbo Bai, Yali Yang, Shifeng Qian, Xiaotian Wang, Zhuhong Liu   +5 more
wiley   +1 more source

Multiferroic‐Centric Materials and Systems Engineering for Battery Applications: An Insight Into Mechanisms, Strategies, and Characterizations

Advanced Science, EarlyView.
Multiferroic order parameters – polarization, magnetization, and ferroelastic strain – are positioned as dynamic design variables for batteries. Their mechanistic roles, practical tuning through fabrication and external fields, and ferroic‐resolved characterization routes are unified into a closed‐loop framework, revealing how coupled ferroic responses
Jiaqi Su, Yanda Zhu, Hao Peng, Manman Li, Xuzihan Zhang, Meixiao Wu, Siyuan Zhang, Yuhan Zeng, Jiwen Liao, Ming Luo, Hetaishan Huang, Yutong Wang, Sean Li, Wenxian Li   +13 more
wiley   +1 more source