Results 41 to 50 of about 115,369 (189)

AutoCal: A software application for calibrating photometric data

South African Journal of Science, 2016
We present a software application for the calibration of stellar magnitudes in the absence of standard stars. It uses an existing algorithm to match stars in the target’s field of view to catalogue entries and computes the average offset between the two ...
Daniël J. Wium, Brian van Soelen
doaj   +1 more source

Phantom: A Smoothed Particle Hydrodynamics and Magnetohydrodynamics Code for Astrophysics [PDF]

Publications Astronomical Society of Australia, 2017
We present Phantom, a fast, parallel, modular, and low-memory smoothed particle hydrodynamics and magnetohydrodynamics code developed over the last decade for astrophysical applications in three dimensions.
Daniel J. Price, J. Wurster, T. Tricco, C. Nixon, S. Toupin, A. Pettitt, Conrad Chan, D. Mentiplay, G. Laibe, S. Glover, C. Dobbs, R. Nealon, D. Liptai, H. Worpel, C. Bonnerot, G. Dipierro, G. Ballabio, E. Ragusa, C. Federrath, R. Iaconi, T. Reichardt, D. Forgan, M. Hutchison, T. Constantino, Ben A. Ayliffe, Kieran Hirsh, G. Lodato   +26 more
semanticscholar   +1 more source

The Plasma Universe: A Coherent Science Theme for Voyage 2050

Frontiers in Astronomy and Space Sciences, 2021
In review of the White Papers from the Voyage 2050 process1 and after the public presentation of a number of these papers in October 2019 in Madrid, we as White Paper lead authors have identified a coherent science theme that transcends the divisions ...
Daniel Verscharen, Daniel Verscharen, Robert T. Wicks, Graziella Branduardi-Raymont, Robertus Erdélyi, Robertus Erdélyi, Robertus Erdélyi, Filippo Frontera, Charlotte Götz, Cristiano Guidorzi, Vianney Lebouteiller, Vianney Lebouteiller, Sarah A. Matthews, Fabrizio Nicastro, Iain Jonathan Rae, Alessandro Retinò, Aurora Simionescu, Aurora Simionescu, Aurora Simionescu, Paolo Soffitta, Phil Uttley, Robert F. Wimmer-Schweingruber, Robert F. Wimmer-Schweingruber   +22 more
doaj   +1 more source

ASTROPHYSICS OF WORMHOLES [PDF]

International Journal of Modern Physics D, 2007
We consider the hypothesis that some active galactic nuclei and other compact astrophysical objects may be current or former entrances to wormholes (WHs). A broad mass spectrum for astrophysical WHs is possible. We consider various new models of the static WHs including WHs maintained mainly by an electromagnetic field.
Kardashev, N. S., Novikov, I. D., Shatskiy, A. A.   +2 more
openaire   +2 more sources

Vlasov methods in space physics and astrophysics [PDF]

Living Reviews in Computational Astrophysics, 2018
This paper reviews Vlasov-based numerical methods used to model plasma in space physics and astrophysics. Plasma consists of collectively behaving charged particles that form the major part of baryonic matter in the Universe.
M. Palmroth, U. Ganse, Y. Pfau‐Kempf, M. Battarbee, L. Turc, T. Brito, M. Grandin, S. Hoilijoki, A. Sandroos, S. von Alfthan   +9 more
semanticscholar   +1 more source

Rossby Waves in Astrophysics

Space Science Reviews, 2021
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, M. Albekioni, J. Ballester, Y. Bekki, L. Biancofiore, A. Birch, M. Dikpati, L. Gizon, E. Gurgenashvili, E. Heifetz, Antonino Francesco Lanza, S. McIntosh, L. Ofman, R. Oliver, B. Proxauf, O. Umurhan, R. Yellin-Bergovoy   +16 more
semanticscholar   +1 more source

Nuclear Astrophysics [PDF]

AIP Conference Proceedings, 1993
The problem of core-collapse supernovae is used to illustrate the many connections between nuclear astrophysics and the problems nuclear physicists study in terrestrial laboratories. Efforts to better understand the collapse and mantle ejection are also motivated by a variety of interdisciplinary issues in nuclear, particle, and astrophysics, including
openaire   +1 more source

The astrophysics of nanohertz gravitational waves [PDF]

The Astronomy and Astrophysics Review, 2018
Pulsar timing array (PTA) collaborations in North America, Australia, and Europe, have been exploiting the exquisite timing precision of millisecond pulsars over decades of observations to search for correlated timing deviations induced by gravitational ...
S. Burke-Spolaor, S. Taylor
semanticscholar   +1 more source

The Trojan Horse Method: A Nuclear Physics Tool for Astrophysics

Annual Review of Nuclear and Particle Science, 2021
The Trojan Horse Method (THM) represents an indirect path to determine the bare nucleus astrophysical S-factor for reactions among charged particles at astrophysical energies. This is achieved by measuring the quasi-free cross section of a suitable three-
A. Tumino, C. Bertulani, M. Cognata, L. Lamia, R. Pizzone, S. Romano, S. Typel   +6 more
semanticscholar   +1 more source

LEONID M. LYTVYNENKO, AN OUTSTANDING SCIENTIST AND RESEARCH MANAGER (Editorial) [PDF]

Radio Physics and Radio Astronomy
This paper is an attempt of paying tribute to the memory of Leonid Mykolayovych Lytvynenko (LML), an outstanding Ukrainian scientist, Full Member of the National Academy of Sciences who worked most fruitfully in the fields of radio science and radio ...
V. V. Zakharenko, O. O. Kostenko, O. O. Konovalenko, D. M. Vavriv, S. L. Prosvirnin, Y. M. Yampolski   +5 more
doaj   +1 more source