Results 131 to 140 of about 2,222,310 (369)

POSSIBLE IMPLICATIONS OF THE PLANET ORBITING THE RED HORIZONTAL BRANCH STAR HIP 13044 [PDF]

, 2011
We propose a scenario to account for the surprising orbital properties of the planet orbiting the metal-poor red horizontal branch star HIP 13044. The orbital period of 16.2 days implies that the planet went through a common envelope phase inside the red
Ealeal Bear, N. Soker, A. Harpaz
semanticscholar   +1 more source

Spectroscopy of horizontal branch stars in NGC6752 - Anomalous results on atmospheric parameters and masses

, 2007
We used the ESO VLT-FORS2 facility to collect low-resolution spectra of 51 targets distributed along the Horizontal Branch. We determined atmospheric parameters by comparison with theoretical models through standard fitting routines, and masses by basic ...
A. Recio-Blanco, Behr, Behr, Behr, Behr, Bergeron, C. Moni Bidin, Castelli, Catelan, Edelmann, Edelmann, Fabbian, Faulkner, Ferraro, Flower, G. Piotto, Glaspey, Glaspey, Gratton, Gratton, Grundahl, Hamuy, Harris, Horne, Hoyle, Michaud, Michaud, Moehler, Moehler, Moehler, Moehler, Moehler, Moehler, Moehler, Momany, Momany, Momany, Moni Bidin, Napiwotzki, Pace, Peacock, Peterson, Peterson, Peterson, Piotto, Przybilla, Ramirez, Recio-Blanco, Reid, Reid, Renzini, S. Moehler, Saffer, Sandage, Sandage, Sekiguchi, Sosin, Sweigart, Tüg, van den Bergh, Vink, Y. Momany   +61 more
core   +3 more sources

Toward Zero‐Excess Alkali Metal Batteries: Bridging Experimental and Computational Insights

Advanced Materials, EarlyView.
This review explores zero‐excess alkali metal batteries, highlighting anode–electrolyte interfaces, metal nucleation, dendrite growth, and SEI formation while comparing Li, Na, and K metals. It critically examines electrolyte and separator roles, emphasizing substrate design, electrolyte modifications, interfacial engineering, and solid‐state ...
Pan He, Neubi Francisco Xavier Jr, Matthias Johannes Golomb, Yupei Han, Yuheng Du, Qiong Cai, Yang Xu   +6 more
wiley   +1 more source

Connecting planets around horizontal branch stars with known exoplanets

, 2010
We study the distribution of exoplanets around main sequence (MS) stars and apply our results to the binary model for the formation of extreme horizontal branch (EHB; sdO; sdB; hot subdwarfs) stars. By Binary model we refer both to stellar and substellar
Bear, Beckwith, Beer, Bertelli, Burkert, Butler, Carlberg, Carlberg, Catelan, Crouzet, Cumming, Currie, Desidera, Dollinger, Dorman, Dorman, Drechsel, D’Antona, Ealeal Bear, Fusi, Fusi Pecci, Geier, Geier, Greaves, Halbwachs, Han, Han, Han, Harpaz, Hatzes, Heber, Hjellming, Hébrard, Ida, Israelian, Jacobs, Johnson, Kilkenny, Ksanfomality, Kunitomo, Lee, Li, Lisker, Livio, Livio, Lovis, Machalek, Marcy, Maxted, Menzies, Mugrauer, Mushailov, Napiwotzki, Nelemans, Nelemans, Noam Soker, Nordhaus, Nordhaus, O’Toole, Politano, Qian, Ribas, Rice, Santos, Santos, Santos, Sato, Schuh, Siess, Siess, Sigurdsson, Silvotti, Silvotti, Soker, Soker, Soker, Soker, Soker, Soker, Soker, Soker, Soker, Soker, Soker, Soker, Sweigart, Udry, Udry, Udry, Udry, Villaver, Villaver, Webbink, Wickramasinghe, Wood, Wright, Yi, Zhang   +97 more
core   +1 more source

Dynamic Magnonic Crystals Based on Spatiotemporal Plasmon Excitation

Advanced Materials, EarlyView.
Hybrid magnonic‐plasmonic metamaterials enabling spatiotemporal optical control of spin‐wave transport are demonstrated. These structures integrate periodic stripes of gold nanodisk arrays with low‐damping yttrium iron garnet films to realize dynamically reconfigurable magnonic crystals.
Nikolai Kuznetsov, Huajun Qin, Lukáš Flajšman, Sebastiaan van Dijken   +3 more
wiley   +1 more source

Horizontal Branch Stars and the Ultraviolet Universe [PDF]

, 2009
Extremely hot horizontal branch (HB) stars and their progeny are widely considered to be responsible for the "ultraviolet upturn" (or UVX) phenomenon observed in elliptical galaxies and the bulges of spirals. Yet, the precise evolutionary channels that lead to the production of these stars remain the source of much debate.
openaire   +3 more sources

The early evolution of Globular Clusters: the case of NGC 2808

, 2004
Enhancement and spread of helium among globular cluster stars have been recently suggested as a way to explain the horizontal branch blue tails, in those clusters which show a primordial spread in the abundances of CNO and other elements involved in ...
Bedin L. R., Bessell M. S., Busso G., Catelan M., D’Antona F., D’Antona F., Francesca D’Antona, Hansen B. M. S., Loup C., Mallia E. A., Piotto G., Sneden C., Sweigart A. V., Ventura P., Ventura P., Vittoria Caloi   +15 more
core   +1 more source

Aramid Nanofiber Aerogels: Versatile High Complexity Components for Multifunctional Composites

Advanced Materials, EarlyView.
Different forms of aramid nanofibers (ANFs) and especially aerogels from them, offer a sustainable route to high‐performance biomimetic nanocomposites. Due to the cartilage‐like architecture, ANF‐based materials enable breakthroughs in energy, electromagnetic, biomedical, and water purification technologies.
Mingqiang Wang, Shuhan Hu, Sangwok Bae, Volkan Cecen, Ahmet E. Emre, Zhengxiang Zhong, Li Liu, Carl Heltzel, Yudong Huang, Nicholas A. Kotov   +9 more
wiley   +1 more source

The empirical mass distribution of hot B subdwarfs: Implications for stellar evolution theory

EPJ Web of Conferences, 2013
Subdwarf B (sdB) stars are hot, compact, and evolved objects that form the very hot end of the horizontal branch, the so-called Extreme Horizontal Branch (EHB).
Green E.M., Brassard P., Charpinet S., Fontaine G., Van Grootel V.   +4 more
doaj   +1 more source

Free‐Standing Supramolecular Pyridine N‐Oxide‐Silver(I) Metallogels

Advanced Materials, EarlyView.
A comprehensive analysis of pyridine N‐oxide‐silver(I) trifluoroacetate complexes reveals remarkable mechanical strengths that enable the creation of free‐standing objects with shape control, reaching dimensions of up to centimeters and shedding new insights into the gelation mechanisms.
Rakesh Puttreddy, Boonya Thongrom, J. Mikko Rautiainen, Manu Lahtinen, Esa Kukkonen, Rainer Haag, Jani O. Moilanen, Jan Lundell, Kari Rissanen   +8 more
wiley   +1 more source