Results 131 to 140 of about 6,292 (222)
Powerful outflows in the central parsecs of the low-luminosity active galactic nucleus NGC 1386
, 2017 Low-luminosity active galactic nuclei, i.e. Lbol/Ledd ~ 10-6-10-3, constitute the bulk population of active galactic nuclei (AGNs). Powerful jets, common in these objects, are a crucial source of feedback energy-driving mass outflows into the host galaxy
M. A. Prieto +13 more
core +1 more source
The Astrophysical JournalDisk continuum reverberation mapping is one of the primary ways we learn about active galactic nuclei (AGN) accretion disks. Reverberation mapping assumes that time-varying X-rays incident on the accretion disk drive variability in UV–optical light ...
Amy Secunda +2 more
doaj +1 more source
A CIGALE module tailored (not only) for low-luminosity active galactic nuclei
Astronomy & AstrophysicsThe spectral energy distribution (SED) of low-luminosity active galactic nuclei (LLAGN) presents unique challenges as the emission from these objects is comparable to the radiation from their host galaxy and the accretion physics involved is particularly complex.
I. E. López +19 more
openaire +2 more sources
The jet power, radio loudness, and black hole mass in radio-loud active galactic nuclei
, 2006 Jet formation is thought to be closely connected with the mass of the central supermassive black hole in active galactic nuclei. The radio luminosity commonly used in investigating this issue is merely an indirect measure of the energy transported ...
Liu, Y, Gu, MF, Jiang, DR
core
Observational Evidence for Hot Wind Impact on Parsec Scales in Low-luminosity Active Galactic Nuclei
The Astrophysical JournalSupermassive black holes in galaxies spend the majority of their lifetime in the low-luminosity regime, powered by hot accretion flow. Strong winds launched from the hot accretion flow have the potential to play an important role in active galactic ...
Fangzheng Shi +4 more
doaj +1 more source
, 2007 There is observational evidence that broad-line regions (BLRs) exist in most active galactic nuclei (AGNs), but their origin is still unclear. One scenario is that the BLRs originate from winds accelerated from the hot coronae of the disks, and the winds
Xu, Yun, Cao, Xin-Wu
core
The Astrophysical JournalWe present near- and mid-infrared spectra of eight low-luminosity active galactic nuclei (LLAGN), spanning nearly 4 orders of magnitude in black hole mass and Eddington ratio, obtained with JWST/NIRSpec and MIRI as part of the ReveaLLAGN program, along ...
Kameron Goold +23 more
doaj +1 more source
Black hole masses and Doppler factors of gamma-ray active galactic nuclei
, 2004 The sizes of the broad-line regions (BLRs) in gamma-ray active galactic nuclei (AGNs) are estimated from their optical continuum luminosity by using the empirical relation between R-BLR and L-lambda,L-opt.
Fan, ZH, Cao, XW
core
Measuring the star formation rate density from CNOC2 [PDF]
, 2006 This thesis charts the evolution of the Universal Star Formation Rate Density (SFRD) across the redshift range 0.2 < z < 0.6, using the 2nd Canadian Network for Observational Cosmology Survey (CN0C2).
Whitaker, Richard James
core
The Astrophysical JournalRadio galaxies are a subclass of active galactic nuclei that drive relativistic jets from their center and are observed in radio to very-high-energy gamma rays. The emission mechanisms and regions are still unknown.
Riku Kuze, Shigeo S. Kimura, Kenji Toma
doaj +1 more source