The first 62 AGN observed with SDSS-IV MaNGA -- III: stellar and gas kinematics

Abstract

We investigate the effects of Active Galactic Nuclei (AGN) on the gas kinematics of their host galaxies, using MaNGA data for a sample of 62 AGN hosts and 109 control galaxies (inactive galaxies). We compare orientation of the line of nodes (kinematic Position Angle - PA) measured from the gas and stellar velocity fields for the two samples. We found that AGN hosts and control galaxies display similar kinematic PA offsets between gas and stars. However, we note that AGN have larger fractional velocity dispersion $\sigma$ differences between gas and stars [${\sigma }_{frac}=({\sigma }_{\mathrm{gas}}-{\sigma }_{stars})/{\sigma }_{\mathrm{stars}}$] when compared to their controls, as obtained from the velocity dispersion values of the central (nuclear) pixel (2.5" diameter). The AGN have a median value of ${\sigma }_{\mathrm{frac}}$ of $<{\sigma }_{frac}{>}_{\mathrm{AGN}}=0.04$, while the the median value for the control galaxies is $<{\sigma }_{frac}{>}_{\mathrm{CTR}}=-0.23$. 75% of the AGN show ${\sigma }_{frac}>-0.13$, while 75% of the normal galaxies show ${\sigma }_{\mathrm{frac}}<-0.04$, thus we suggest that the parameter ${\sigma }_{\mathrm{frac}}$ can be used as an indicative of AGN activity. We find a correlation between the [OIII]$\lambda$5007 luminosity and ${\sigma }_{frac}$ for our sample. Our main conclusion is that the AGN already observed with MaNGA are not powerful enough to produce important outflows at galactic scales, but at 1-2 kpc scales, AGN feedback signatures are always present on their host galaxies.

19 pages, 8 figures, published in MNRAS

References in corpus (14)

• The propagation of uncertainties in stellar population synthesis modeling I: The relevance of uncertain aspects of stellar evolution and the IMF to the derived physical properties of galaxies
• Overview of the SDSS-IV MaNGA Survey: Mapping Nearby Galaxies at Apache Point Observatory
• Improving the full spectrum fitting method: accurate convolution with Gauss-Hermite functions
• The SAURON project -- X. The orbital anisotropy of elliptical and lenticular galaxies: revisiting the (V/sigma,epsilon) diagram with integral-field stellar kinematics
• The MaNGA Integral Field Unit Fiber Feed System for the Sloan 2.5 m Telescope
• The Data Reduction Pipeline for the SDSS-IV MaNGA IFU Galaxy Survey
• The SDSS-IV MaNGA Sample: Design, Optimization, and Usage Considerations
• SDSS-IV MaNGA IFS Galaxy Survey --- Survey Design, Execution, and Initial Data Quality
• The complex gas kinematics in the nucleus of the Seyfert 2 galaxy NGC 1386: rotation, outflows and inflows
• SDSS-IV MaNGA: Identification of active galactic nuclei in optical integral field unit surveys
• Evidence of suppression of star formation by quasar-driven winds in gas-rich host galaxies at z<1?
• Modeling the [Fe II]λ1.644μm outflow and comparison with H${}_2$ and H${}^{+}$ kinematics in the inner 200 pc of NGC 1068
• The first 62 AGN observed with SDSS-IV MaNGA - I: their characterization and definition of a control sample
• Zooming into local active galactic nuclei: The power of combining SDSS-IV MaNGA with higher resolution integral field unit observations

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