Results 131 to 140 of about 87,580 (344)

A Brown Dwarf Census from the SIMP Survey

, 2016
We have conducted a near-infrared (NIR) proper motion survey, the Sondage Infrarouge de Mouvement Propre, in order to discover field ultracool dwarfs (UCD) in the solar neighborhood. The survey was conducted by imaging $\sim28\%$ of the sky with the Cam\'
Albert, Loïc, Artigau, Étienne, Burgasser, Adam J., Doyon, René, Gagliuffi, Daniella C. Bardalez, Gagné, Jonathan, Lafrenière, David, Malo, Lison, Nadeau, Daniel, Robert, Jasmin, Simard, Corinne   +10 more
core   +1 more source

Near-Infrared Spectroscopy of Brown Dwarfs: Methane and the Transition between the L and T Spectral Types [PDF]

, 2001
Ian S. McLean, L. Prato, Sungsoo S. Kim, M. K. Wilcox, J. Davy Kirkpatrick, Adam Burgasser   +5 more
openalex   +1 more source

Accelerated Discovery of Topological Conductors for Nanoscale Interconnects

Advanced Science, EarlyView.
Copper interconnects exhibit a sharp increase in resistivity at ultra‐scaled dimensions, threatening continued miniaturization of integrated circuits. The gapless surface states of topological semimetals provide conduction channels resistant to localization.
Alexander C. Tyner, William Rogers, Po‐Hsin Shih, Yi‐Hsin Tu, Gengchiau Liang, Hsin Lin, Ching‐Tzu Chen, James M. Rondinelli   +7 more
wiley   +1 more source

Retrieving Young Cloudy L Dwarfs: A Nearby Planetary-mass Companion BD+60 1417B and its Isolated Red Twin W0047

The Astrophysical Journal
We present an atmospheric retrieval analysis on a set of young, cloudy, red L dwarfs—CWISER J124332.12+600126.2 (BD+60 1417B) and WISEP J004701.06+680352.1 (W0047)—using the Brewster retrieval framework.
Caprice L. Phillips, Jacqueline K. Faherty, Ben Burningham, Johanna M. Vos, Eileen C. Gonzales, Emily J. Griffith, Sherelyn Alejandro Merchan, Emily Calamari, Channon Visscher, Caroline V. Morley, Niall Whiteford, Josefine Gaarn, Ilya Ilyin, Klaus Strassmeier, Ji Wang   +14 more
doaj   +1 more source

Reversible and Controllable Transition Between Filamentary and Interfacial Resistive Switching in HfO2‐Based Memristors

Advanced Electronic Materials, EarlyView.
5 nm HfO2 memristors exhibit a fully reversible, voltage‐controlled transition between filamentary and interfacial switching within the same device. At high voltages, a filament forms and dominates the conduction, whereas at lower voltages the device reversibly returns to interfacial mode without defect accumulation, implying a new reversible ...
Cuo Wu, Hao Shen, Richard Schroedter, Chong Peng, Hampus Hoffman, Stefan Slesazeck, Ronald Tetzlaff, Thomas Mikolajick, Benjamin Max   +8 more
wiley   +1 more source

Trigonometric parallaxes of young field L dwarfs

, 2014
(Abridged) We aim to determine the trigonometric parallaxes and proper motions of a sample of ten field L0-L5 dwarfs with spectroscopic evidence for low-gravity atmospheres.
Béjar, V. J. S., Miles-Páez, P., Osorio, M. R. Zapatero, Pallé, E., Peña-Ramírez, K., Rebolo, R.   +5 more
core   +1 more source

Comparative Insights and Overlooked Factors of Interphase Chemistry in Alkali Metal‐Ion Batteries

Advanced Energy Materials, EarlyView.
This review presents a comparative analysis of Li‐, Na‐, and K‐ion batteries, focusing on the critical role of electrode–electrolyte interphases. It especially highlights overlooked aspects such as SEI/CEI misconceptions, binder effects, and self‐discharge relevance, emphasizing the limitations of current understanding and offering strategies for ...
Changhee Lee, Zachary T. Gossage, Shinichi Kumakura, Shinichi Komaba   +3 more
wiley   +1 more source

Activity at the Deuterium-Burning Mass Limit in Orion

, 2002
We report very intense and variable Halpha emission (pseudo-equivalent widths of ~180, 410 A) of S Ori 55, a probable free-floating, M9-type substellar member of the young sigma Orionis open star cluster.
D. Barrado y Navascués, E. L. Martín, M. R. Zapatero Osorio, Neuhauser R., Pavlenko Ya., Perryman M. A. C., R. Rebolo, V. J. S. Béjar   +7 more
core   +1 more source

Radical Electroprecipitation from a Water|Oil|Electrode Interface Prolongs “Electro”Chemiluminescence of the Tris(2,2′‐bipyridyl)Ruthenium(II) and Benzoyl Peroxide System by 103

Angewandte Chemie, EarlyView.
Multiphase systems, including ones with liquid‐liquid phase boundaries, are the home to many curious chemistries including reaction acceleration and spontaneous formation of reactive species. Here we show the liquid‐liquid interface causes electrochemiluminescence and afterglow chemiluminescence lifetime to be enhanced by 220,000% in‐time, far beyond ...
Daniel M. Carrel, Brady R. Layman, Megan L. Hill, Jeffrey E. Dick   +3 more
wiley   +2 more sources

Classifying Cool Dwarfs: Comprehensive Spectral Typing of Field and Peculiar Dwarfs Using Machine Learning

The Astrophysical Journal
Low-mass stars and brown dwarfs—spectral types (SpTs) M0 and later—play a significant role in studying stellar and substellar processes and demographics, reaching down to planetary-mass objects.
Tianxing Zhou, Christopher A. Theissen, S. Jean Feeser, William M. J. Best, Adam J. Burgasser, Kelle L. Cruz, Lexu Zhao   +6 more
doaj   +1 more source