Results 101 to 110 of about 80,758 (270)
Reverberation Mapping Data of NGC 5548 Imply a Multicomponent Broad-line Region
The Astrophysical JournalLine broadening and variability are observational hallmarks of active galactic nuclei (AGN) which allow us to measure supermassive black hole masses as well as constrain the geometry and kinematics of the emitting gas, with the most precise measurements ...
Kirk Long, Jason Dexter
doaj +1 more source
Advanced Materials, Volume 38, Issue 15, 12 March 2026.All‐perovskite tandem solar cells are evaluated under low‐intensity and low‐temperature (LILT) conditions relevant to space environments. Distinct loss regimes emerge, where weaker entropic mixing causes halide segragation below ≈240 K going along with a strong current imbalance, while poor electron transport in C60 dominates.
Sercan Ozen +10 more
wiley +1 more source
LINERs as Low-Luminosity Active Galactic Nuclei
, 1998 Many nearby galaxies contain optical signatures of nuclear activity in the form of LINER nuclei. LINERs may be the weakest and most common manifestation of the quasar phenomenon.
Antonucci +44 more
core +2 more sources
Identifying the Secondary Jet in the RadioAstron Image of OJ 287
The Astrophysical JournalThe 136 yr long optical light curve of OJ 287 is explained by a binary black hole model where the secondary is in a 12 yr orbit around the primary. Impacts of the secondary on the accretion disk of the primary generate a series of optical flares that ...
Mauri J. Valtonen +28 more
doaj +1 more source
Doppler-Boosting Effect on the Fluxes of Active Galactic Nuclei [PDF]
, 1999 Dong-Cheng Mei +4 more
openalex +1 more source
Programming Next‐Generation Synthetic Biosensors by Genetic Circuit Design
Advanced Science, Volume 13, Issue 14, 9 March 2026.Synthetic biology enables genetic circuit‐based biosensing to detect diverse targets, process signals, and transduce them into readable outputs or intracellular regulatory activities. However, field deployment and real‐world application of such synthetic biosensors face considerable challenges in sensitivity, specificity, speed, stability, and ...
Yuanli Gao +4 more
wiley +1 more source
Star formation around active galactic nuclei [PDF]
Active galactic nuclei (Seyfert nuclei and their relatives) and intense star formation can both deliver substantial amounts of energy to the vicinity of a galactic nucleus.
Keel, William C.
core +1 more source
Probing the Dust Torus Radius–Luminosity Relation: A WISE View
The Astrophysical JournalWe present measurements of the dusty torus sizes of 51 active galactic nuclei (AGNs) with a redshift of z
Ashutosh Tomar +3 more
doaj +1 more source
Mechanism of the Changing Look phenomenon in Active Galactic Nuclei [PDF]
, 2019 Marzena Śniegowska, B. Czerny
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Supermassive Black Holes with High Accretion Rates in Active Galactic Nuclei. XII. Reverberation Mapping Results for 15 PG Quasars from a Long-duration High-cadence Campaign [PDF]
, 2021 Chen Hu +17 more
openalex +1 more source