A closer look at NGC 7314 nuclear region: a multiwavelength analysis of the Seyfert nucleus and its surroundings
arXiv:2212.11434 · doi:10.1093/mnras/stac3454
Abstract
The central regions of galaxies harbouring active galactic nuclei (AGNs) can be quite complex, especially at high activity, presenting, besides variability, a variety of phenomena related, e.g. to ionization/excitation mechanisms. A detailed study is necessary in order to understand better those objects. For that reason, we performed a multiwavelength analysis of the nuclear region of the nearby Seyfert galaxy NGC 7314, using an optical data cube obtained with the Integral Field Unit from the Gemini Multi-Object Spectrograph, together with Hubble Space Telescope images, X-ray data from the XMM-Newton and the Nuclear Spectroscopic Telescope Array and radio data from Atacama Large Millimeter/Submillimeter Array. The goals were to study the nuclear and circumnuclear emission, the emission of the AGN and the gas kinematics. The optical spectrum shows the emission of a Seyfert nucleus, with broad components in the H and H emission lines, characterising a type 1 AGN, with a spectrum rich in coronal emission lines. The spatial morphology of the [OIII]5007 suggests the presence of an ionization cone, west of the nucleus, meanwhile the east cone seems to be obscured by dust. An extended [FeVII]6087 emission was also detected, which could be possibly explained by a scenario involving photoionization+shocks mechanisms. X-rays analyses showed that there are variations in the flux; however, we did not detect any variations in the column density along the line of sight. Its variability may be a consequence of changes in the AGN accretion rate.
arXiv comment20 pages, 16 figures, 7 tables
References in corpus (45)
- Unified Schemes for Radio-Loud Active Galactic Nuclei
- Cosmic-Ray Rejection by Laplacian Edge Detection
- MILES: A Medium resolution INT Library of Empirical Spectra
- The Co-Evolution of Galaxies and Supermassive Black Holes: Insights from Surveys of the Contemporary Universe
- The MAPPINGS III Library of Fast Radiative Shock Models
- AGN Dusty Tori: II. Observational Implications of Clumpiness
- The Relation Between Optical Extinction and Hydrogen Column Density in the Galaxy
- AGN Dusty Tori: I. Handling of Clumpy Media
- The 1000 Brightest HIPASS Galaxies: HI Properties
- Cosmicflows-3
- ASCA observations of Seyfert 1 galaxies: I. Data Analysis, Imaging and Timing
- New Spectral Model for Constraining Torus Covering Factors from Broadband X-ray Spectra of Active Galactic Nuclei
- Discovery of 21 New Changing-look AGNs in Northern Sky
- Evidence for non-evolving FeII/MgII ratios in rapidly accreting z~6 QSOs
- The Southern Photometric Local Universe Survey (S-PLUS): improved SEDs, morphologies and redshifts with 12 optical filters
- PS16dtm: A Tidal Disruption Event in a Narrow-line Seyfert 1 Galaxy
- On the Unification of Active Galactic Nuclei
- Evolution of Broad-line Emission from Active Galactic Nuclei
- A tidal disruption flare in a massive galaxy? Implications for the fuelling mechanisms of nuclear black holes
- The Galaxy Activity, Torus and Outflow Survey (GATOS) I. ALMA images of dusty molecular tori in Seyfert galaxies
- Spitzer-IRS high resolution spectroscopic survey of the 12 micron Seyfert galaxies: II. Results for the Complete Dataset
- Outflows of very ionized gas in the center of Seyfert galaxies: kinematics and physical conditions
- BAT AGN Spectroscopic Survey - IV: Near-Infrared Coronal Lines, Hidden Broad Lines, and Correlation with Hard X-ray Emission
- The central parsec of NGC 3783: a rotating broad emission line region, asymmetric hot dust structure, and compact coronal line region
- The High-Ionization Nuclear Emission-Line Region of Seyfert Galaxies
- A Multi-Wavelength Study of the Nature of Type 1.8/1.9 Seyfert Galaxies
- X-ray spectral variability of seven LINER nuclei with XMM-Newton and Chandra data
- Variability of Active Galactic Nuclei from the Optical to X-ray Regions
- Detection of faint broad emission lines in type 2 AGN: II. On the measurement of the BH mass of type 2 AGN and the unified model
- The variable and non-variable X-ray absorbers in Compton-thin type-II Active Galactic Nuclei
- Probing the Physics of Narrow Line Regions in Active Galaxies III: Accretion and Cocoon Shocks in the LINER NGC1052
- Type 2 counterparts of narrow-line Seyfert 1 galaxies
- NGC 1566: analysis of the nuclear region from optical and near-infrared Integral Field Unit spectroscopy
- An off-centered active galactic nucleus in NGC 3115
- A treatment procedure for GMOS/IFU data cubes: application to NGC 2835
- A novel black-hole mass scaling relation based on coronal gas, and its dependence with the accretion disc
- A 700-pc extended coronal gas emission in the Circinus galaxy
- The ionised gas outflow in the Circinus galaxy: kinematics and physical conditions
- Probing the unified model in NGC 7314
- Collimation and scattering of the active galactic nucleus emission in the Sombrero galaxy
- The nuclear region of NGC 613. I -- Multiwavelength analysis
- The DIVING Survey -- Deep IFS View of Nuclei of Galaxies -- I. Definition and Sample Presentation
- Double nuclei in NGC 908 and NGC 1187
- The nuclear environment of NGC 2442: a Compton-thick low-luminosity AGN
- The highly obscured Seyfert 2 nucleus in NGC 1448 observed with MUSE