Results 111 to 120 of about 627,475 (313)

The double blue-straggler sequence in NGC 2173: an artifact of field contamination [PDF]

open access: yesAstronomy & Astrophysics, 2018
Here we discuss the case of the double blue straggler star (BSS) sequence recently detected in the young stellar cluster NGC 2173 in the Large Magellanic Cloud (LMC) by Li et al. (2018, ApJ, 856, 25).
E. Dalessandro   +5 more
semanticscholar   +1 more source

Manipulation of Ferroic Orders via Continuous Biaxial Strain Engineering in Multiferroic Bismuth Ferrite

open access: yesAdvanced Science, EarlyView.
This study explores the evolution of ferroelectric (FE) and antiferromagnetic (AFM) orders in freestanding BiFeO3 films under anisotropic strain using rotational anisotropy second harmonic generation (RA‐SHG) and first‐principles calculations. The research reveals reversible control of in‐plane FE polarization and significant AFM order rotation ...
Jiesu Wang   +15 more
wiley   +1 more source

A study of the blue straggler population of the old open cluster Collinder 261 [PDF]

open access: yes, 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

Blue Straggler Stars: The Spectacular Population in M80 [PDF]

open access: yesThe Astrophysical Journal, 1999
15 pages, 5 figures, Astrophysical Journal Letters, in ...
Robert T. Rood   +3 more
openaire   +3 more sources

Correlations in Magnetic Sub‐Domains as an Unconventional Phase Diagram for van der Waals Ferromagnets

open access: yesAdvanced Science, EarlyView.
An unconventional magnetic order is observed in exfoliated CrBr3 layers, characterized by vertically correlated planar magnetic sub‐domains. Magnetic force microscopy, ab initio calculations, and micromagnetic simulations indicate that these sub‐domains arise from stacking faults modifying interlayer exchange coupling.
Sergey Y. Grebenchuk   +9 more
wiley   +1 more source

Exotic asphyxiation: interactions between invasive species and hypoxia

open access: yesBiological Reviews, Volume 98, Issue 1, Page 150-167, February 2023., 2023
ABSTRACT Non‐indigenous species (NIS) and hypoxia (<2 mg O2 l−1) can disturb and restructure aquatic communities. Both are heavily influenced by human activities and are intensifying with global change. As these disturbances increase, understanding how they interact to affect native species and systems is essential.
James E. Byers   +4 more
wiley   +1 more source

Characterization of Blue and Yellow Straggler Stars of Berkeley 39

open access: yesThe Astronomical Journal
We characterize blue straggler stars (BSSs) and yellow straggler stars (YSSs) of the open cluster (OC) Berkeley 39 using multiwavelength observations including the Swift/Ultraviolet and Optical Telescope (UVOT). Our analysis also makes use of ultraviolet
Komal Chand   +3 more
doaj   +1 more source

The asymptotic evolution of the stellar merger V1309 Sco: a Blue Straggler in the making? [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2019
Stellar mergers are estimated to be common events in the Galaxy. The best studied stellar merger case to date is V1309 Sco (= Nova Scorpii 2008) which was originally misclassified as a Nova event.
T. Ferreira   +6 more
semanticscholar   +1 more source

Agile Free‐Form Signal Filtering and Routing with a Chaotic‐Cavity‐Backed Non‐Local Programmable Metasurface

open access: yesAdvanced Science, EarlyView.
A multi‐parameter‐tunable, all‐metallic, low‐loss, wave‐chaotic cavity enables a frequency‐insensitive (over a 7 GHz bandwidth) technique to synthesize desired transfer functions within smaller windows to high accuracy and with complete reconfigurability of shapes and center frequencies.
Fabian T. Faul   +4 more
wiley   +1 more source

The Evolution of Blue Stragglers Formed Via Stellar Collisions [PDF]

open access: yes, 1998
We have used the results of recent smoothed particle hydrodynamic simulations of colliding stars to create models appropriate for input into a stellar evolution code. In evolving these models, we find that little or no surface convection occurs, precluding angular momentum loss via a magnetically-driven stellar wind as a viable mechanism for slowing ...
arxiv   +1 more source

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