Results 41 to 50 of about 166,316 (291)

Yields of Massive Stars and their Role in Galactic Chemical Evolution Studies

, 1999
We review the yields of intermediate mass elements (from C to Zn) from massive stars and their associated uncertainties, in the light of recent theoretical results.
Prantzos, Nikos
core   +3 more sources

First Fruits of the Spitzer Space Telescope: Galactic and Solar System Studies [PDF]

, 2006
This article provides a brief overview of the Spitzer Space Telescope and discusses its initial scientific results on galactic and solar system science.Comment: Review article to appear in slightly different format in Vol.44 of Annual Reviews of ...
Crovisier J, Cushing MC, D'Alessio P, Dan M. Watson, Douvion T, George Rieke, Giovanni Fazio, Gutermuth RA, Hartmann L, Harvey PM, Kenyon SJ, Lanz T, Luhman KL, Marley MS, Michael Werner, Reipurth B, Rosenthal D, Saumon D, Thomas L. Roellig, van Marle AJ, Wooden DH   +20 more
core   +2 more sources

Flexible and High‐Performance Perovskite‐Polymer Composites for Dual X‐Ray and Proton Direct Detection

Advanced Optical Materials, EarlyView.
A polymer–perovskite composite obtained by mechanochemical synthesis enables thick, tunable active layers for efficient absorption of highly penetrating ionizing radiation. Vertical‐electrode detectors achieve low X‐ray detection limits and high sensitivity direct 5 MeV proton sensing.
Camilla Bordoni, Bas A. H. Huisman, Joost W. C. Reinders, Ilaria Fratelli, Massimo Chiari, Laura Basiricò, Henk J. Bolink, Andrea Ciavatti, Michele Sessolo, Beatrice Fraboni   +9 more
wiley   +1 more source

The Orion constellation as an installation - An innovative three dimensional teaching and learning environment

, 2012
Visualising the three dimensional distribution of stars within a constellation is highly challenging for both students and educators, but when carried out in an interactive collaborative way it can create an ideal environment to explore common ...
Brako E., Brown D., Daniel Brown, Hernandez U. O.   +3 more
core   +1 more source

Testing a Fast Dynamical Indicator: The MEGNO [PDF]

, 2011
To investigate non-linear dynamical systems, like for instance artificial satellites, Solar System, exoplanets or galactic models, it is necessary to have at hand several tools, such as a reliable dynamical indicator.
Cincotta, Pablo, Giordano, Claudia, Maffione, Nicolas   +2 more
core   +3 more sources

Study of Free‐Space Optical Quantum Network: Review and Prospectives

Advanced Science, EarlyView.
Free from the constraints of fiber connections, free‐space quantum network enables longer and more flexible quantum network connections. This review summarizes and comparatively analyzes free‐space quantum network experiments based on ground stations, satellites, and mobile platforms.
Hua‐Ying Liu, Zhenda Xie, Shining Zhu
wiley   +1 more source

X-rays Studies of the Solar System [PDF]

, 2019
X-ray observatories contribute fundamental advances in Solar System studies by probing Sun-object interactions, developing planet and satellite surface composition maps, probing global magnetospheric dynamics, and tracking astrochemical reactions ...
Alvarado-Gómez, Julián D., Bhardwaj, Anil, Bodewits, Dennis, Branduardi-Raymont, Graziella, Bunce, Emma J., Combi, Michael R., Cravens, Thomas E., Cumbee, Renata S., Dennerl, Konrad, Drake, Jeremy J., Dunn, William R., Elsner, Ronald F., Gladstone, G. Randall, Grodent, Denis, Hong, Jae Sub, Jackman, Caitriona M., Kharchenko, Vasili, Kraft, Ralph P., Lisse, Carey M., Marler, Joan P., Moschou, Sofia P., Mullen, Patrick D., Nulsen, Susan, Snios, Bradford, Wolk, Scott J., Yao, Zhonghua   +25 more
core  

Chiral‐Encoded Pt‐Ir Surfaces as Apparent Spin Filter for Enhanced Oxygen Reduction

Advanced Science, EarlyView.
The Chiral‐Induced Spin Selectivity (CISS) effect is employed in chiral‐encoded mesoporous Platinum‐Iridium (Pt‐Ir) electrocatalysts to enhance the oxygen reduction reaction (ORR). A break in spin symmetry leads to a substantial antagonistic difference in activity (>200%) when comparing two enantiomorphs of the same electrode.
Zikkawas Pasom, Krissanapat Yomthong, Sopon Butcha, Jonas Fransson, Chularat Wattanakit, Alexander Kuhn   +5 more
wiley   +1 more source

Unveiling the Mechanism for the Rapid Acceleration Phase in a Solar Eruption

The Astrophysical Journal Letters, 2023
Two major mechanisms have been proposed to drive the solar eruptions: the ideal magnetohydrodynamic instability and the resistive magnetic reconnection. Due to the close coupling and synchronicity of the two mechanisms, it is difficult to identify their ...
Ze Zhong, Yang Guo, Thomas Wiegelmann, M. D. Ding, Yao Chen   +4 more
doaj   +1 more source

Repeating Nuclear Transients From Repeating Partial Tidal Disruption Events

Astronomische Nachrichten, EarlyView.
ABSTRACT Extragalactic nuclear transients that exhibit repeating outbursts can be modeled as the repeated dynamical interaction between bound stars and supermassive black holes (SMBHs). A subset of these transients, with recurrence timescales of months‐to‐years, have been explained as accretion flares from the repeated tidal stripping of a star by an ...
Ananya Bandopadhyay, Eric R. Coughlin, Julia Fancher, C. J. Nixon, Dheeraj R. Pasham   +4 more
wiley   +1 more source