Results 31 to 40 of about 422,100 (269)
Nonlinear Spectroscopy of Alkali Atoms in Cold Medium of Astrophysical Relevance
Atoms, 2017 The time-dependent population dynamics of hyperfine (HF) sublevels of n 2 p 3 / 2 atomic states upon laser excitation in a cold medium of alkali atoms is examined.
Dmitry K. Efimov +7 more
doaj +1 more source
Galaxies, 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
EXONEST: The Bayesian Exoplanetary Explorer
Entropy, 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]
Physical Review D, 2017 9 revtex pages, comments ...
openaire +2 more sources
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
Direct Reactions with Exotic Nuclei, Nuclear Structure and Astrophysics [PDF]
, 2006 Intermediate energy Coulomb excitation and dissociation is a useful tool for nuclear structure and astrophysics studies. Low-lying strength in nuclei far from stability was discovered by this method.
Baur +26 more
core +3 more sources
Angewandte 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
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. +2 more
openaire +2 more sources
Towards the first plasma-electron screening experiment
Frontiers 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
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