Results 111 to 120 of about 374,367 (293)

Topics in Core-Collapse Supernova Theory: The Formation of Black Holes and the Transport of Neutrinos [PDF]

, 2012
Core-Collapse Supernovae are one of the most complex astrophysical systems in the universe. They deeply entwine aspects of physics and astrophysics that are rarely side by side in nature.
O'Connor, Evan Patrick
core   +1 more source

Glissile Interphase Boundaries Enable Collective Phase Switching in Epitaxial Polar Oxides

Advanced Functional Materials, EarlyView.
A triple point is identified in the phase diagram of low‐symmetry epitaxial BiFeO3 thin film along with an extended regime of phase competition associated with a flattened energy landscape. The electromechanical response is shown to be governed by correlated interphase‐boundary motion, including scale‐free avalanche dynamics characteristic of systems ...
Mohammad Moein Seyfouri, Oliver Paull, Ralph Bulanadi, Yasuhiro Sakamoto, Shintaro Yasui, Mikayla Lord, Mahak Chhabra, David Walker, Patrycja Paruch, Shery Chang, Nagarajan Valanoor, Daniel Sando   +11 more
wiley   +1 more source

Weakened Magnetic Braking in the Exoplanet Host Star 51 Peg

The Astrophysical Journal Letters
The consistently low activity level of the old solar analog 51 Peg not only facilitated the discovery of the first hot Jupiter, but also led to the suggestion that the star could be experiencing a magnetic grand minimum.
Travis S. Metcalfe, Klaus G. Strassmeier, Ilya V. Ilyin, Derek Buzasi, Oleg Kochukhov, Thomas R. Ayres, Sarbani Basu, Ashley Chontos, Adam J. Finley, Victor See, Keivan G. Stassun, Jennifer L. van Saders, Aldo G. Sepulveda, George R. Ricker   +13 more
doaj   +1 more source

Homogeneous spectroscopic parameters for bright planet host stars from the northern hemisphere. The impact on stellar and planetary mass [PDF]

, 2015
This work is supported by the European Research Council/European Community under the FP7 through Starting Grant agreement number 239953. N.C.S. was supported by FCT through the Investigador FCT contract reference IF/00169/2012 and POPH/FSE (EC) by FEDER ...
Mortier, Annelies, A. Mortier, Sousa, S. G., Santos, N. C., V. Adibekyan, S. G. Sousa, Neves, V., Delgado Mena, E., B. Rojas-Ayala, E. Delgado Mena, Mortier, A.; id_orcid, Tsantaki, M., M. Tsantaki, N. C. Santos, Rojas-Ayala, B., G. Israelian, Israelian, G., Adibekyan, V., V. Neves   +18 more
core   +1 more source

Electrocapillary Modulated Interfacial Tension Amplifies Liquid Metal Transduction

Advanced Functional Materials, EarlyView.
This study presented an electrocapillary‐enhanced magnetohydrodynamic pumping strategy that harnesses the Lorentz force and interfacial tension modulation of liquid metal droplets to achieve amplified fluidic power. The system enabled low‐voltage, self‐oscillating fluidic transduction with enhanced pressure and flow generation, supporting compact ...
Saba Firouznia, Ciqun Xu, Michael D. Dickey, Jonathan Rossiter   +3 more
wiley   +1 more source

Asteroseismic Structure Inversions of Main-sequence Solar-like Oscillators with Convective Cores

The Astrophysical Journal
Asteroseismic inferences of main-sequence solar-like oscillators often rely on best-fit models. However, these models cannot fully reproduce the observed mode frequencies, suggesting that the internal structure of the model does not fully match that of ...
Lynn Buchele, Earl P. Bellinger, Saskia Hekker, Sarbani Basu   +3 more
doaj   +1 more source

The effects of stellar winds on the magnetospheres and potential habitability of exoplanets [PDF]

, 2014
V.S. acknowledges the support of an STFC studentship. A.A.V. acknowledges support from a Royal Astronomical Society Fellowship and an Ambizione Fellowship from the Swiss National Science Foundation. S.V.J.
S. C. Marsden, Jeffers, Sandra V., P. Petit, S. V. Jeffers, Jardine, M., M. Jardine, A. A. Vidotto, Vidotto, A. A., Petit, P., V. See, Do Nascimento, J.D., J. D. do Nascimento, do Nascimento, Jose-Dias Jr., do Nascimento Jr., J. D., Jeffers, S.V., See, Wyke Chun Victor, Vidotto, A.A., Marsden, S. C., See, V., Jeffers, S. V., Marsden, S.C.   +20 more
core   +1 more source

Structure‐Guided Dynamical Mechanics in Bioinspired Double Twisted Laminated Thin Films

Advanced Functional Materials, EarlyView.
This work explores a dynamic mechanistic study of crack propagation and puncture testing via real‐time monitoring of crack initiation, propagation, and termination through nature‐inspired single and double twisted architectures fabricated from cellulose nanocrystals.
Justin Brackenridge, Olivia Harper, Jaejun Lee, Sergio Gonzalez‐Munoz, Vladimir V. Tsukruk   +4 more
wiley   +1 more source

Application des méthodes du chaos quantique aux oscillations d'étoiles en rotation rapide [PDF]

, 2012
L'astérosismologie a pour but de déduire les propriétés internes des étoiles à partir de l'analyse de leurs fréquences d'oscillation. Cette analyse peut-être grandement facilitée par des informations a priori sur la structure du spectre d'oscillation ...
Pasek, Michael
core  

Optical Signature of Moiré Superlattices Formed by Twisted SrTiO3 Membranes

Advanced Functional Materials, EarlyView.
We discover optical signatures from bonded interfaces in twisted SrTiO3 moiré superlattices, including low‐frequency Raman vibrational modes and strong second‐harmonic generation, consistent with strong interlayer coupling inferred from cross‐sectional electron microscopy and ab initio calculations. ABSTRACT Moiré superlattices formed at the interfaces
T. A. M. Ragib Shahriar, Fumikazu Murakami, Xing He, Konnor Koons, Xinyan Li, Bumseop Kim, Shihan Qin, Varun Harbola, Jochen Mannhart, Yimo Han, Ruijuan Xu, Shengxi Huang, Andrew M. Rappe, Hanyu Zhu   +13 more
wiley   +1 more source