Spatially Resolved Spectroscopy of Narrow-line Seyfert 1 Host Galaxies
Scharw?chter,J.1,2; Husemann,B.3,4; Busch,G.5; Komossa,S.6; Dopita,M. A.7
Source PublicationThe Astrophysical Journal
AbstractAbstract We present optical integral field spectroscopy for five narrow-line Seyfert 1 (NLS1) galaxies, probing their host galaxies at scales. Emission lines from the active galactic nucleus (AGN) and the large-scale host galaxy are analyzed separately, based on an AGN–host decomposition technique. The host galaxy gas kinematics indicates large-scale gas rotation in all five sources. At the probed scales of , the host galaxy gas is found to be predominantly ionized by star formation without any evidence of a strong AGN contribution. None of the five objects shows specific star formation rates (SFRs) exceeding the main sequence of low-redshift star-forming galaxies. The specific SFRs for MCG-05-01-013 and WPVS 007 are roughly consistent with the main sequence, while ESO?399-IG20, MS 22549-3712, and TON S180 show lower specific SFRs, intermediate to the main sequence and the red quiescent galaxies. The host galaxy metallicities, derived for the two sources with sufficient data quality (ESO 399-IG20 and MCG-05-01-013), indicate central oxygen abundances just below the low-redshift mass–metallicity relation. Based on this initial case study, we outline a comparison of AGN and host galaxy parameters as a starting point for future extended NLS1 studies with similar methods.
Keywordgalaxies: active galaxies: individual (ESO 399-IG20, MCG-05-01-013, MS 22549-3712, WPVS 007, TON S180)
WOS IDIOP:0004-637X-848-1-aa8ad8
PublisherThe American Astronomical Society
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Document Type期刊论文
Affiliation1.Gemini Observatory, Northern Operations Center, 670 N. A’ohoku Place, Hilo, HI 96720, USA
2.LERMA, Observatoire de Paris, PSL, CNRS, Sorbonne Universités, UPMC, F-75014, Paris, France;
3.Max-Planck-Institut für Astronomie, K?nigstuhl 17, D-69117 Heidelberg, Germany
4.European Southern Observatory, Karl-Schwarzschild-Str. 2, D-85748 Garching b. München, Germany
5.I. Physikalisches Institut, Universit?t zu K?ln, Zülpicher Str. 77, D-50937 K?ln, Germany
6.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
7.RSAA, The Australian National University, Cotter Road, Weston Creek, ACT 2611 Canberra, Australia
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GB/T 7714
Scharw?chter,J.,Husemann,B.,Busch,G.,et al. Spatially Resolved Spectroscopy of Narrow-line Seyfert 1 Host Galaxies[J]. The Astrophysical Journal,2017,848(1).
APA Scharw?chter,J.,Husemann,B.,Busch,G.,Komossa,S.,&Dopita,M. A..(2017).Spatially Resolved Spectroscopy of Narrow-line Seyfert 1 Host Galaxies.The Astrophysical Journal,848(1).
MLA Scharw?chter,J.,et al."Spatially Resolved Spectroscopy of Narrow-line Seyfert 1 Host Galaxies".The Astrophysical Journal 848.1(2017).
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