Universität zu Köln

Scharwachter, J., Husemann, B., Busch, G., Komossa, S. and Dopita, M. A. (2017). Spatially Resolved Spectroscopy of Narrow-line Seyfert 1 Host Galaxies. Astrophys. J., 848 (1). BRISTOL: IOP PUBLISHING LTD. ISSN 1538-4357

Full text not available from this repository.

Abstract

We present optical integral field spectroscopy for five z < 0.062 narrow-line Seyfert 1 (NLS1) galaxies, probing their host galaxies at greater than or similar to 2-3 kpc 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. 2-3 kpc, 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.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Scharwachter, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Husemann, B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Busch, G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Komossa, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Dopita, M. A. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-214339
DOI:	10.3847/1538-4357/aa8ad8
Journal or Publication Title:	Astrophys. J.
Volume:	848
Number:	1
Date:	2017
Publisher:	IOP PUBLISHING LTD
Place of Publication:	BRISTOL
ISSN:	1538-4357
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language ACTIVE GALACTIC NUCLEI; BLACK-HOLE MASS; NEAR-INFRARED SPECTROSCOPY; STAR-FORMING GALAXIES; DIGITAL SKY SURVEY; RAY-SELECTED AGNS; EMISSION-LINE; METALLICITY RELATION; COMPLETE SAMPLE; REGION Multiple languages Astronomy & Astrophysics Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/21433