Results 251 to 260 of about 102,425 (297)
Some of the next articles are maybe not open access.
Astronomische Nachrichten, 1976
AbstractThe parameters of fifteen active nuclei are determined from spectroscopic and photometric observations. The values of bolometric luminosity, gas volume and mass, kinetic energy, characteristic dimension and kinematic time‐scale are given. The fluxes of radiative and mechanical energy of the gas envelope are compared. A steady‐state model of the
openaire +1 more source
AbstractThe parameters of fifteen active nuclei are determined from spectroscopic and photometric observations. The values of bolometric luminosity, gas volume and mass, kinetic energy, characteristic dimension and kinematic time‐scale are given. The fluxes of radiative and mechanical energy of the gas envelope are compared. A steady‐state model of the
openaire +1 more source
Resonance, 2018
Jets in active galaxies are signatures of energy supply via collimated beams of plasma from the galactic nucleus to the extended regions of emission. These jets, which occur across the electromagnetic spectrum, are powered by supermassive black holes in the centres of the host galaxies.
openaire +1 more source
Jets in active galaxies are signatures of energy supply via collimated beams of plasma from the galactic nucleus to the extended regions of emission. These jets, which occur across the electromagnetic spectrum, are powered by supermassive black holes in the centres of the host galaxies.
openaire +1 more source
Astrophysics, 2000
The diameters of active galaxies were compared with the diameters of ordinary galaxies. It is shown that, within the same luminosity limits, they do not differ clearly from each other. Starlike active galaxies in the samples of active galaxies have any possible luminosities.
openaire +1 more source
The diameters of active galaxies were compared with the diameters of ordinary galaxies. It is shown that, within the same luminosity limits, they do not differ clearly from each other. Starlike active galaxies in the samples of active galaxies have any possible luminosities.
openaire +1 more source
A population of red candidate massive galaxies ~600 Myr after the Big Bang
Nature, 2023Ivo Labbe +2 more
exaly
Confirmation and refutation of very luminous galaxies in the early Universe
Nature, 2023Pablo Arrabal Haro +2 more
exaly
Normal, dust-obscured galaxies in the epoch of reionization
Nature, 2021Yoshinobu Fudamoto +2 more
exaly
Detection of stellar light from quasar host galaxies at redshifts above 6
Nature, 2023Xu-Heng Ding +2 more
exaly