Universität zu Köln

Misquitta, Persis ORCID: 0000-0003-3168-9448, Bowles, Micah ORCID: 0000-0001-5838-8405, Eckart, Andreas ORCID: 0000-0001-6049-3132, Yttergren, Madeleine, Busch, Gerold, Valencia-S, Monica and Fazeli, Nastaran (2020). \ Interactions among intermediate redshift galaxies: The case of SDSS J134420.86+663717.8. Astron. Astrophys., 639. LES ULIS CEDEX A: EDP SCIENCES S A. ISSN 1432-0746

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Abstract

We present the properties of the central supermassive black holes and the host galaxies of the interacting object SDSS J134420.86+663717.8. We obtained optical long slit spectroscopy data from the Large Binocular Telescope using the Multi Object Double Spectrograph. Analysing the spectra revealed several strong broad and narrow emission lines of ionised gas in the nuclear region of one galaxy, whereas only narrow emission lines were visible for the second galaxy. The optical spectra were used to plot diagnostic diagrams, deduce rotation curves of the two galaxies, and calculate the masses of the central supermassive black holes. We find that the galaxy with broad emission line features has Seyfert 1 properties, while the galaxy with only narrow emission line features seems to be star-forming in nature. Furthermore, we find that the masses of the central supermassive black holes are almost equal at a few times 10(7) M-circle dot. Additionally, we present a simple N-body simulation to shed some light on the initial conditions of the progenitor galaxies. We find that for an almost orthogonal approach of the two interacting galaxies, the model resembles the optical image of the system.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Misquitta, Persis UNSPECIFIED orcid.org/0000-0003-3168-9448 UNSPECIFIED Bowles, Micah UNSPECIFIED orcid.org/0000-0001-5838-8405 UNSPECIFIED Eckart, Andreas UNSPECIFIED orcid.org/0000-0001-6049-3132 UNSPECIFIED Yttergren, Madeleine UNSPECIFIED UNSPECIFIED UNSPECIFIED Busch, Gerold UNSPECIFIED UNSPECIFIED UNSPECIFIED Valencia-S, Monica UNSPECIFIED UNSPECIFIED UNSPECIFIED Fazeli, Nastaran UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-326998
DOI:	10.1051/0004-6361/201937009
Journal or Publication Title:	Astron. Astrophys.
Volume:	639
Date:	2020
Publisher:	EDP SCIENCES S A
Place of Publication:	LES ULIS CEDEX A
ISSN:	1432-0746
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Physics > Institute of Physics I
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language DIGITAL SKY SURVEY; ACTIVE GALACTIC NUCLEI; SURVEY QUASAR CATALOG; BLACK-HOLES; COSMOLOGICAL SIMULATIONS; LINE SPECTRA; TIME-SCALES; MASS-RATIO; LAMBDA-CDM; X-RAY Multiple languages Astronomy & Astrophysics Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/32699