Results 21 to 30 of about 420,801 (268)

Toward Calibration of the Global Network of Gravitational Wave Detectors with Sub-Percent Absolute and Relative Accuracy

open access: yesGalaxies, 2022
The detection of gravitational-wave signals by the LIGO and Virgo observatories during the past few years has ushered us into the era of gravitational-wave astronomy, shifting our focus from detection to source parameter estimation.
Sudarshan Karki   +2 more
doaj   +1 more source

Precision laboratory UV and IR wavelengths for cosmological and astrophysical applications [PDF]

open access: yes, 2007
The quality of astronomical spectra is now so high that the accuracy of the laboratory data is getting more and more important for the analysis and interpretation.
Aldenius, M., Johansson, S.
core   +4 more sources

EXONEST: The Bayesian Exoplanetary Explorer

open access: yesEntropy, 2017
The fields of astronomy and astrophysics are currently engaged in an unprecedented era of discovery as recent missions have revealed thousands of exoplanets orbiting other stars.
Kevin H. Knuth   +6 more
doaj   +1 more source

Astrophysical haloscopes [PDF]

open access: yesPhysical Review D, 2017
9 revtex pages, comments ...
openaire   +2 more sources

AutoCal: A software application for calibrating photometric data

open access: yesSouth 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

Towards the first plasma-electron screening experiment

open access: yesFrontiers in Physics, 2023
The enhancement of fusion reaction rates in a thermonuclear plasma by electron screening of the Coulomb barrier is an important plasma-nuclear effect that is present in stellar models but has not been experimentally observed.
Daniel T. Casey   +11 more
doaj   +1 more source

ASTROPHYSICS OF WORMHOLES [PDF]

open access: yesInternational 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.   +2 more
openaire   +2 more sources

Similarity Properties and Scaling Laws of Radiation Hydrodynamic Flows in Laboratory Astrophysics [PDF]

open access: yes, 2011
The spectacular recent development of modern high-energy density laboratory facilities which concentrate more and more energy in millimetric volumes allows the astrophysical community to reproduce and to explore, in millimeter-scale targets and during ...
  +24 more
core   +5 more sources

The Role of Chemistry Across Disciplines From Humanities to Life Sciences in Understanding Complexity and Emergence

open access: yesAngewandte Chemie, EarlyView.
This study explores the origins of life by linking prebiotic chemistry, the emergence of information‐carrying molecules such as RNA and proteins, and philosophical questions about consciousness. The study emphasizes the role of molecular evolution in the Central Dogma and provides insights into the chemical origins of biology and the basis of life's ...
Harald Schwalbe   +5 more
wiley   +2 more sources

The Plasma Universe: A Coherent Science Theme for Voyage 2050

open access: yesFrontiers 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   +22 more
doaj   +1 more source

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