Results 41 to 50 of about 70,663 (226)

Retired A Stars and Their Companions: Exoplanets Orbiting Three Intermediate-Mass Subgiants [PDF]

open access: yes, 2007
We report precision Doppler measurements of three intermediate-mass subgiants from Lick and Keck Observatories. All three stars show variability in their radial velocities consistent with planet-mass companions in Keplerian orbits.
Debra A. Fischer   +10 more
core   +2 more sources

Uni‐Axial Densification of Slurry‐Casted Li₆PS₅Cl Tapes: The Role of Particle Size Distribution and Densification Pressure

open access: yesAdvanced Materials, EarlyView.
Solid‐state batteries promise high energy density and safety for electric vehicles. This study examines the densification of slurry‐casted Li₆PS₅Cl separator tapes, highlighting the role of particle size distribution and uni‐axial pressure. Wet milling refines particles while preserving conductivity, and a critical compaction threshold leads to ...
Quoc‐Anh Tran   +14 more
wiley   +1 more source

Detection of Sharp Symmetric Features in the Circumbinary Disk Around AK Sco [PDF]

open access: yes, 2015
The Search for Planets Orbiting Two Stars (SPOTS) survey aims to study the formation and distribution of planets in binary systems by detecting and characterizing circumbinary planets and their formation environments through direct imaging.
Asensio-Torres, Ruben   +13 more
core   +3 more sources

Disordered Rocksalts as High‐Energy and Earth‐Abundant Li‐Ion Cathodes

open access: yesAdvanced Materials, EarlyView.
Disordered rocksalts with lithium excess (DRX) offer a new direction in Li‐ion cathode design beyond conventional Ni‐ and Co‐based materials. This review highlights the design principles, synthesis strategies, and performance optimization of DRX oxides and oxyfluorides for energy‐dense, sustainable batteries using Earth‐abundant transition metals and ...
Han‐Ming Hau   +10 more
wiley   +1 more source

Integrated software package STAMP for minor planets [PDF]

open access: yes
The integrated software package STAMP allowed for rapid and exact reproduction of the tables of the year-book 'Ephemerides of Minor Planets.' Additionally, STAMP solved the typical problems connected with the use of the year-book. STAMP is described. The
Kochetova, O. M., Shor, Viktor A.
core   +1 more source

Understanding the Growth and Properties of Sputter‐Deposited Phase‐Change Superlattice Films

open access: yesAdvanced Materials Interfaces, EarlyView.
The study explores the sputter deposition of highly textured chalcogenide superlattice films for phase‐change memory applications. It examines the effects of temperature, pressure, and seeding layer on film growth, constructing a pseudo‐phase diagram to understand the effect of each growth parameter.
Simone Prili   +7 more
wiley   +1 more source

Minor planet astrophotometry [PDF]

open access: yes, 2012
Historically, the Minor Planet Center (MPC) has concentrated on improving the quality of the astrometric observations and the resulting orbits of minor planets. In light of long-standing complaints in the literature about the quality of the photometric parameters for the minor planets, there has been a need to improve the quality of the absolute ...
openaire   +2 more sources

Temperature‐Dependent Optical Properties of CsCu2I3 Perovskites

open access: yesAdvanced Materials Interfaces, EarlyView.
This work explores the temperature‐dependent optical properties of CsCu₂I₃ nanocrystals using transmittance and photoluminescence techniques. Resonant excitation conditions and energy level modeling reveal critical insights into the self‐trapped exciton emission mechanism.
Giovanni Vescio   +8 more
wiley   +1 more source

Study of ephemeris accuracy of the minor planets [PDF]

open access: yes
The current state of minor planet ephemerides was assessed, and the means for providing and updating these emphemerides for use by both the mission planner and the astronomer were developed.
Brooks, D. R., Cunningham, L. E.
core   +1 more source

On the Period Distribution of Close-In Extrasolar Giant Planets [PDF]

open access: yes, 2004
Transit (TR) surveys for extrasolar planets have recently uncovered a population of ``very hot Jupiters,'' planets with orbital periods of P< 3 d. At first sight this may seem surprising, given that radial velocity (RV) surveys have found a dearth of ...
B. Scott Gaudi   +7 more
core   +1 more source

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