Quasi-periodic behaviour in the optical and γ-ray light curves of blazars 3C 66A and B2 1633+38
We report on quasi-periodic variability found in two blazars included in the Steward Observatory Blazar Monitoring data sample: the BL Lac object 3C 66A and the...
Quasi-periodic X-ray eruptions years after a nearby tidal disruption event
Quasi-periodic eruptions (QPEs) are luminous bursts of soft X-rays from the nuclei of galaxies, repeating on timescales of hours to weeks 1–5. The mechanism...
Quasi-stellar objects in the ALHAMBRA survey. I. Photometric redshift accuracy based on 23 optical-NIR filter photometry
Context. Even the spectroscopic capabilities of today's ground and space-based observatories can not keep up with the enormous flow of detections (>105 deg-2)...
Quasifission and difference in formation of evaporation residues in the 16O + 184W and 19F + 181Ta reactions
The role of the entrance channel has been studied to ascertain a cause of the observed difference between the evaporation residue cross sections normalized to...
Quasifission and fusion-fission in reactions with massive nuclei: Comparison of reactions leading to the Z=120 element
The yields of evaporation residues, fusion-fission, and quasifission fragments in the Ca48+Sm144,154 and O16+W186 reactions are analyzed in the framework of the...
Quenching as a Contest between Galaxy Halos and Their Central Black Holes
Existing models of galaxy formation have not yet explained striking correlations between structure and star formation activity in galaxies, notably the sloped...
Quenching cluster cooling flows with recurrent hot plasma bubbles
The observed cooling rate of hot gas in clusters is much lower than that inferred from the gas density profiles. This suggests that the gas is being heated by...
QUEST1 Variability Survey. II. Variability Determination Criteria and 200k Light Curve Catalog
The QUEST (QUasar Equatorial Survey Team) Phase 1 camera has collected multibandpass photometry on a large strip of high Galactic latitude sky over a period of...