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 present and characterize a sample of 20 nearby Seyfert galaxies selectedfor having BAT 14--195keV luminosities $L_X \ge 10^{41.5}$ erg s$^{-1}$,redshift $z\le$0.015, being accessible for observations with the GeminiNear-Infrared Field Spectrograph (NIFS) and showing extended[OIII]$\lambda$5007 emission. Our goal is to study Active Galactic Nuclei (AGN)feeding and feedback processes from near-infrared integral-field spectra, thatinclude both ionized (HII) and hot molecular (H$_2$) emission. This sample iscomplemented by other 9 Seyfert galaxies previously observed with NIFS. We showthat the host galaxy properties (absolute magnitudes $M_B$, $M_H$, centralstellar velocity dispersion and axial ratio) show a similar distribution tothose of the 69 BAT AGN. For the 20 galaxies already observed, we presentsurface mass density ($\Sigma$) profiles for HII and H$_2$ in their inner$\sim$500 pc, showing that HII emission presents a steeper radial gradient thanH$_2$. This can be attributed to the different excitation mechanisms:ionization by AGN radiation for HII and heating by X-rays for H$_2$. The meansurface mass densities are in the range ($0.2\le \Sigma_{HII} \le35.9$)M$_\odot$pc$^{-2}$, and ($0.2\le \Sigma_{H2} \le13.9$)$\times10^{-3}$M$_\odot$pc$^{-2}$, while the ratios between the HII andH$_2$ masses range between $\sim$200 to 8000. The sample presented here will beused in future papers to map AGN gas excitation and kinematics, providing acensus of the mass inflow and outflow rates and power as well as their relationwith the AGN luminosity.

Gemini NIFS survey of feeding and feedback processes in nearby Active Galaxies: II -The sample and surface mass density profiles