Results 31 to 40 of about 4,313 (174)

Fractional Skyrmion Tubes in Chiral‐Interfaced 3D Magnetic Nanowires

Advanced Functional Materials, EarlyView.
In chiral 3D helical magnetic nanowires, the coupling between the geometric and magnetic chirality provides a way to create topological spin states like vortex tubes. Here, it is demonstrated how the breaking of this coupling in interfaced 3D nanowires of opposite chirality leads to even more complex topological spin states, such as fractional ...
John Fullerton, Naëmi Leo, Jakub Jurczyk, Claire Donnelly, Dédalo Sanz‐Hernández, Luka Skoric, Nicholas Mille, Stefan Stanescu, Donald A MacLaren, Rachid Belkhou, Aurelio Hierro‐Rodriguez, Amalio Fernández‐Pacheco   +11 more
wiley   +1 more source

Detection of white dwarf companions to blue stragglers in the open cluster NGC 188: direct evidence for recent mass transfer

, 2014
Several possible formation pathways for blue straggler stars have been developed recently, but no one pathway has yet been observationally confirmed for a specific blue straggler.
Geller, Aaron M., Gosnell, Natalie M., Knigge, Christian, Leigh, Nathan, Mathieu, Robert D., Sills, Alison   +5 more
core   +1 more source

Blue Straggler Bimodality: A Brownian Motion Model [PDF]

The Astrophysical Journal, 2018
Abstract The shape of the radial distribution of blue straggler stars (BSS), when normalized to a reference population of horizontal branch (HB) stars, has been found to be a powerful indicator of the dynamical evolution reached by a globular cluster (GC).
Pasquato, M.a, Miocchi, P.b, Yoon, S.-J.c   +5 more
openaire   +3 more sources

Realization of Complex‐Shaped Magnetic Nanotubes with 3D Printing and Electrodeposition

Advanced Functional Materials, EarlyView.
Complex‐shaped magnetic nanotubes were fabricated by coating three‐dimensional nanoscaffolds fabricated with focused electron beam induced deposition with a magnetic coating via electrodeposition. X‐ray magnetic microscopy and simulations revealed an azimuthal magnetic configuration within the nanotubes and pinning of domain walls at curved vertices ...
Claudia Fernández‐González, Pamela Morales‐Fernández, Luke Alexander Turnbull, Claas Abert, Dieter Suess, Michael Foerster, Miguel Á. Niño, Pawel Nita, Anna Mandziak, Simone Finizio, Nuria Bagués, Eva Pereiro, Amalio Fernández‐Pacheco, Lucas Pérez, Sandra Ruiz‐Gómez, Claire Donnelly   +15 more
wiley   +1 more source

Blue Stragglers in Low-Luminosity Star Clusters

, 2005
We examine the blue straggler populations of 13 low-luminosity (M_V_t >~ -6) globular clusters and 2 old open clusters. These clusters test blue straggler formation in environments intermediate between higher luminosity (and usually higher density ...
Eric L. Sandquist, Ferraro F. R.
core   +2 more sources

FORMATION AND EVOLUTION OF BLUE STRAGGLERS IN 47 TUCANAE [PDF]

The Astrophysical Journal, 2016
ABSTRACT Blue stragglers (BSS) are stars whose position in the color–magnitude diagram (CMD) places them above the main sequence (MS) turn-off (TO) point of a star cluster. Using data from the core of 47 Tuc in the ultraviolet (UV), we have identified various stellar populations in the CMD, and used their radial distributions to study ...
Javiera Parada, Harvey Richer, Jeremy Heyl, Jason Kalirai, Ryan Goldsbury   +4 more
openaire   +2 more sources

Two‐Dimensional Materials as a Multiproperty Sensing Platform

Advanced Functional Materials, EarlyView.
Various sensing modalities enabled and/or enhanced by two‐dimensional (2D) materials are reviewed. The domains considered for sensing include: 1) optoelectronics, 2) quantum defects, 3) scanning probe microscopy, 4) nanomechanics, and 5) bio‐ and chemosensing.
Dipankar Jana, Shubhrasish Mukherjee, Dmitrii Litvinov, Magdalena Grzeszczyk, Sergey Grebenchuk, Makars Šiškins, Virgil Gavriliuc, Yihang Ouyang, Changyi Chen, Yuxuan Ye, Meng Yiming, Maciej Koperski   +11 more
wiley   +1 more source

Ecology of Blue Straggler Stars

, 2014
Ecology of Blue Straggler Stars, H.M.J. Boffin, G. Carraro & G.
Boffin, H. M. J., Carraro, G., Beccari, G.   +2 more
openaire   +4 more sources

The blue stragglers formed via mass transfer in old open clusters

, 2006
In this paper, we present the simulations for the primordial blue stragglers in the old open cluster M67 based on detailed modelling of the evolutionary processes.
Alexander, B. Tian, Chen, Collier, Davies, Deng, Eggleton, Eggleton, Eggleton, Fan, Ferraro, Fregeau, Goldman, Han, Han, Hills, Hobbs, Hurly, Hurly, Iglesias, Kippenhahn, Kroupa, L. Deng, Lejeune, Lejeune, Leonard, Lombardi, Mapelli, Mathieu, Mathys, McCrea, Nemec, Ouellette, Piotto, Pols, Pols, Pols, Sandage, Sandquist, Sandquist, Sandquist, Schiavon, Shara, Stepien, Strom, Tassoul, van den Berg, X. B. Zhang, Z. Han, Zahn   +49 more
core   +2 more sources

Blue straggler stars in dwarf spheroidal galaxies [PDF]

, 2007
Blue straggler star (BSS) candidates have been observed in all old dwarf spheroidal galaxies (dSphs), however whether or not they are authentic BSSs or young stars has been a point of debate.
Aparicio, Bailyn, Battaglia, Beers, Bellazzini, Benz, Benz, Bonanos, Carney, Carney, Carrera, Chabrier, Davies, Davies, E. Ripamonti, E. Tolstoy, Ferraro, Ferraro, Ferraro, Ferraro, Ferraro, Freeman, Freitag, Fusi Pecci, G. Battaglia, Girardi, Harbeck, Hernandez, Hurley, Hurley, Hurley-Keller, Ideta, Irwin, Irwin, Irwin, Irwin, Irwin, Kleyna, Kleyna, Landolt, Lanzoni, Lanzoni, Lee, Leonard, Lombardi, M. J. Irwin, M. Mapelli, Mapelli, Mapelli, Mateo, Mateo, Mateo, Mayer, McCrea, McMahon, Momany, Monkiewicz, Monkman, Naylor, Piatek, Pols, S. Sigurdsson, Sabbi, Sandage, Sigurdsson, Sigurdsson, Sills, Sills, Sills, Ségall, Tian, Tolstoy, Walker, Warren, Wilkinson, Zaggia, Zinnecker   +76 more
core   +5 more sources