English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We map narrow-line regions (NLRs) of 11 nearby Seyfert 2 galaxies with theoptical integral-field spectrograph OASIS mounted at CFHT. We modelemission-line profiles of 5 forbidden-line doublets and 2 Balmer lines,correcting for the underlying stellar absorption by reconstructing stellarspectra with synthetic evolutionary stellar population models. For each of the11 targets, we present 2D maps of surface brightness in the observed emissionlines, diagnostic line intensity ratios, gas kinematics (mean line-of-sightvelocity and velocity dispersion), electron density, and interstellarreddening, and we plot spatially resolved spectral-diagnostic diagrams. Thestellar data are represented by maps of mean line-of-sight (LOS) velocities andof the relative mass fractions of the young stellar populations. The gasvelocity fields in 80% of the sample exhibit twisted S-shaped isovelocitycontours, which are signatures of non-circular orbits and indicatenon-axisymmetric gravitational potentials, gas motions out of the galacticplane, or possible outflows and inflows. Based on the kinematic measurements,we identified a possible nuclear ring or radial gas flow in NGC 262 (Mrk 348),not reported before. Eight of the eleven observed objects exhibit stronglyasymmetric or multi-component emission-line profiles, in most cases confined toan elongated region passing through the galactic centre, perpendicular to themajor axis of emission.

OASIS integral-field spectroscopy of the central kpc in 11 Seyfert 2 galaxies