Results 11 to 20 of about 115,080 (337)
Rossby Waves in Astrophysics [PDF]
Rossby waves are a pervasive feature of the large-scale motions of the Earth’s atmosphere and oceans. These waves (also known as planetary waves and r-modes) also play an important role in the large-scale dynamics of different astrophysical objects such ...
T. V. Zaqarashvili+16 more
semanticscholar +7 more sources
Wormholes are hypothetical topologically-non-trivial structures of spacetime. From the theoretical point of view, the possibility of their existence is challenging but cannot be ruled out. This article is a compact and non-exhaustive review of past and current efforts to search for astrophysical wormholes in the Universe.
Cosimo Bambi, Dejan Stojkovic
openaire +3 more sources
A Case for Electron-Astrophysics [PDF]
AbstractThe smallest characteristic scales, at which electron dynamics determines the plasma behaviour, are the next frontier in space and astrophysical plasma research. The analysis of astrophysical processes at these scales lies at the heart of the research theme of electron-astrophysics. Electron scales are the ultimate bottleneck for dissipation of
Joachim Saur+31 more
openaire +10 more sources
Visible Shapes of Black Holes M87* and SgrA*
We review the physical origins for possible visible images of the supermassive black hole M87* in the galaxy M87 and SgrA* in the Milky Way Galaxy. The classical dark black hole shadow of the maximal size is visible in the case of luminous background ...
Vyacheslav I. Dokuchaev+1 more
doaj +1 more source
MODULES FOR EXPERIMENTS IN STELLAR ASTROPHYSICS (MESA) [PDF]
Stellar physics and evolution calculations enable a broad range of research in astrophysics. Modules for Experiments in Stellar Astrophysics (MESA) is a suite of open source, robust, efficient, thread-safe libraries for a wide range of applications in ...
B. Paxton+5 more
semanticscholar +1 more source
This article explores the transformations of an area of scientific research provoked by the introduction of big data and the possibilities to treat them by Artificial Intelligence.
Marcovich Anne, Shinn Terry
doaj +1 more source
Modules for Experiments in Stellar Astrophysics (MESA): Pulsating Variable Stars, Rotation, Convective Boundaries, and Energy Conservation [PDF]
We update the capabilities of the open-knowledge software instrument Modules for Experiments in Stellar Astrophysics (MESA). RSP is a new functionality in MESAstar that models the nonlinear radial stellar pulsations that characterize RR Lyrae, Cepheids ...
B. Paxton+18 more
semanticscholar +1 more source
Practical Limits on Nanosatellite Telescope Pointing: The Impact of Disturbances and Photon Noise
Accurate and stable spacecraft pointing is a requirement of many astronomical observations. Pointing particularly challenges nanosatellites because of an unfavorable surface area–to-mass ratio and a proportionally large volume required for even the ...
Ewan S. Douglas+2 more
doaj +1 more source
Classification of unassociated fermi-LAT sources [PDF]
The Large Area Telescope (LAT) on board NASA’s Fermi Gamma-ray Space telescope has detected 5788 sources in the 4FGL catalogue. Among them, 271 have been associated to pulsars, 3436 to blazars, and 1782 remain unassociated sources.
Meng Qiyu
doaj +1 more source
MODULES FOR EXPERIMENTS IN STELLAR ASTROPHYSICS (MESA): BINARIES, PULSATIONS, AND EXPLOSIONS [PDF]
We substantially update the capabilities of the open-source software instrument Modules for Experiments in Stellar Astrophysics (MESA). MESA can now simultaneously evolve an interacting pair of differentially rotating stars undergoing transfer and loss ...
B. Paxton+13 more
semanticscholar +1 more source