Results 71 to 80 of about 282,229 (301)

How planetary growth outperforms migration

open access: yes, 2019
Planetary migration is a major challenge for planet formation theories. The speed of Type I migration is proportional to the mass of a protoplanet, while the final decade of growth of a pebble-accreting planetary core takes place at a rate that scales ...
Brasser, Ramon   +2 more
core   +1 more source

On the Determination of Planetary Masses [PDF]

open access: yesSymposium - International Astronomical Union, 1972
A common method of determining the mass of a planet is to solve for the orbit of some other object several times with different trial values for the mass in question. It is pointed out that a parabola fitted to the values of the sums of the squares of the residuals may be used to obtain, not only the planetary mass, but also its probable error. Marsden'
openaire   +1 more source

Nanolayer‐Encapsulated Stretchable Liquid‐Metal Sheets for Thermal Management

open access: yesAdvanced Functional Materials, EarlyView.
A stretchable liquid metal sheet with both high thermal conductivity and mechanical flexibility is developed. Its trilayer structure, comprising copper‐particle‐dispersed gallium liquid metal encapsulated by styrene‐butadiene‐styrene nanosheets, shows 40.4 W m−1 K−1 conductivity, elongation exceeding 200%, and retention of 96% of its initial ...
Daisuke Kuse   +16 more
wiley   +1 more source

KMT-2025-BLG-1616Lb: First Microlensing Bound Planet From DREAMS

open access: yesThe Astronomical Journal
We present observations and analysis of the bound planetary microlensing event KMT-2025-BLG-1616. The planetary signal was captured by the Korea Microlensing Telescope Network and the Dark Energy Camera Rogue Earths and Mars Survey (DREAMS).
Hongjing Yang   +65 more
doaj   +1 more source

Nanothermometry in Living Cells: Physical Limits, Conceptual and Material Challenges

open access: yesAdvanced Functional Materials, EarlyView.
Heat and temperature are fundamental to life. When nanothermometers began probing regions as small as a living cell, they triggered controversial claims of large intracellular temperature gradients. We review physical constraints energy‐conservation, entropy production, thermodynamic fluctuations, and molecular dynamics.
Taras Plakhotnik
wiley   +1 more source

Filling Factors and Ionized Masses of Planetary Nebulae [PDF]

open access: yesSymposium - International Astronomical Union, 1993
We present a study on the filling factors and ionized masses of four sets of galactic and extra–galactic planetary nebulae (PNe) at known distances. The calculation of filling factors and ionized masses has been pursued as to get a deeper insight on the evolution of this class of objects.
Boffi, F. R., Stanghellini, L.
openaire   +3 more sources

A Printed Zinc‐Ion Microbattery with Extended Shelf Life and Durability for Energy Autonomous Sensors

open access: yesAdvanced Functional Materials, EarlyView.
We present a fully printed aqueous zinc‐ion microbattery (ZnIB) enabled by graphene‐decorated zinc anode and printed MnO@NC cathode using sustainable aqueous‐based ink formulations. The printed 3D electrodes ensure uniform zinc deposition, low overpotential, and long‐term stability.
Nagaraju Goli   +11 more
wiley   +1 more source

Convective Mixing in Gas Giant Planets with Primordial Composition Gradients

open access: yesThe Astrophysical Journal
Linking atmospheric measurements to the bulk planetary composition and ultimately the planetary origin is a key objective in planetary science. In this work, we identify the cases in which the atmospheric composition represents the bulk composition.
Henrik Knierim, Ravit Helled
doaj   +1 more source

Mathematical Modeling of the Kinematic Scheme Planetary Mixer Mechanism

open access: yesProceedings of the International Conference on Applied Innovations in IT
Planetary mixer is presented, which uses drive mechanisms for the working bodies of the mortar mass mixture of a construction mortar mixer. The main objective of the study is to create a mathematical model in the mortar mixer mechanism of three different
Bakhtiyar Alimov   +2 more
doaj   +1 more source

Korean-Japanese Planet Search Program: Substellar Companions around Intermediate-Mass Giants

open access: yes, 2011
A Korean-Japanese planet search program has been carried out using the 1.8m telescope at Bohyunsan Optical Astronomy Observatory (BOAO) in Korea, and the 1.88m telescope at Okayama Astrophysical Observatory (OAO) in Japan to search for planets around ...
Han, Inwoo   +12 more
core   +1 more source

Home - About - Disclaimer - Privacy