Misalignments in NGC 1068 [PDF]
Acta Astrophysica Taurica, vol. 3, no. 1, pp. 23-26 (2022), 2022 NGC 1068 is a nearby Active Galactic Nucleus (AGN) of type 2, meaning that its accretion disk is hidden behind a large amount of foreground extinction. Observations at several wavelengths have revealed various disk-like structures around the nucleus, all possibly part of the putative torus responsible for the obscuration of the AGN.
arxiv +1 more source
A Diverse Population of z ∼ 2 ULIRGs Revealed by JWST Imaging
The Astrophysical Journal, 2023 Four ultraluminous infrared galaxies (ULIRGs) observed with JWST/NIRcam in the Cosmos Evolution Early Release Science program offer an unbiased preview of the z ∼ 2 ULIRG population.
J.-S. Huang +14 more
doaj +1 more source
The Ionization Fraction in the Obscuring “Torus” of an Active Galactic Nucleus [PDF]
The Astrophysical Journal, 1998 In this paper, we report VLBA radio maps at three frequencies and an ASCA X-ray spectrum of the water megamaser galaxy NGC 2639, which is believed to contain an edge-on viewed accretion disk. The radio observations reveal a compact ($
M. Matsuoka +11 more
openaire +3 more sources
Dissecting the active galactic nucleus in Circinus – II. A thin dusty disc and a polar outflow on parsec scales [PDF]
Monthly notices of the Royal Astronomical Society, 2019 Recent observations which resolved the mid-infrared (MIR) emission of nearby active galactic nuclei (AGNs), surprisingly revealed that their dust emission appears prominently extended in the polar direction, at odds with the expectations from the ...
M. Stalevski, K. Tristram, D. Asmus
semanticscholar +1 more source
AN OFF-CENTERED ACTIVE GALACTIC NUCLEUS IN NGC 3115 [PDF]
The Astrophysical Journal, 2014 NGC 3115 is an S0 galaxy that has always been considered to have a pure absorption-line spectrum. Some recent studies have detected a compact radio-emitting nucleus in this object, coinciding with the photometric center and with a candidate for the X-ray nucleus. This is evidence of the existence of a low-luminosity active galactic nucleus (AGN) in the
R. B. Menezes +2 more
openaire +2 more sources
Discovery of an Mg ii Changing-look Active Galactic Nucleus and Its Implications for a Unification Sequence of Changing-look Active Galactic Nuclei [PDF]
Astrophysical Journal, 2019 Changing look (CL) is a rare phenomenon of active galactic nuclei (AGNs) that exhibit emerging or disappearing broad lines accompanied by continuum variations on astrophysically short timescales (≲1 yr to a few decades). While previous studies have found
H. Guo 郭 +7 more
semanticscholar +1 more source
Modeling the Spectral Energy Distribution of the Active Galactic Nucleus inside NGC 4395
The Astrophysical Journal, 2023 We study the broadband spectral energy distribution (SED) of the prototypical low-mass active galactic nucleus (AGN) in NGC 4395. We jointly model the optical through mid-IR SED with a combination of galaxy and AGN light, and find that on arcsecond ...
Hector Afonso G. Cruz +2 more
doaj +1 more source
Black hole variability and the star formation-active galactic nucleus connection : do all star-forming galaxies host an active galactic nucleus? [PDF]
, 2014 We investigate the effect of active galactic nucleus (AGN) variability on the observed connection between star formation and black hole accretion in extragalactic surveys.
Alexander, D.M. +6 more
core +2 more sources
Probing the Heart of an Active Galactic Nucleus: NGC 1068 [PDF]
Symposium - International Astronomical Union, 2001 We present results from integral field spectroscopy of the narrow line region of NGC 1068, carried out with the MPE 3D near infrared imaging spectrometer. A map and velocity field of the [Fe II] fine structure line at 1.64μm is presented. The kinematics of the [Fe II] emission, which arises in partially ionized zones, shows red shifted emission in the ...
Tecza, Matthias +2 more
openaire +3 more sources
Galaxies hosting an active galactic nucleus: a view from the CALIFA survey [PDF]
, 2019 We study the presence of optically-selected Active Galactic Nuclei (AGNs) within a sample of 867 galaxies extracted from the extended {\it Calar-Alto Legacy Integral Field spectroscopy Area} (eCALIFA) spanning all morphological classes.
E. Lacerda +5 more
semanticscholar +1 more source