2020A&A...639A..30M


Query : 2020A&A...639A..30M

2020A&A...639A..30M - Astronomy and Astrophysics, volume 639A, 30-30 (2020/7-1)

Interactions among intermediate redshift galaxies. The case of SDSS J134420.86+663717.8.

MISQUITTA P., BOWLES M., ECKART A., YTTERGREN M., BUSCH G., VALENCIA-S. M. and FAZELI N.

Abstract (from CDS):

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 107M. 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.

Abstract Copyright: © ESO 2020

Journal keyword(s): galaxies: interactions - galaxies: active - galaxies: kinematics and dynamics - galaxies: starburst - galaxies: evolution - methods: numerical

Simbad objects: 4

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Number of rows : 4
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 3C 48 QSO 01 37 41.2995845985 +33 09 35.079126038   16.62 16.20     ~ 2608 2
2 NAME Antennae IG 12 01 53.170 -18 52 37.92           ~ 1595 0
3 2MASX J13442084+6637172 Sy1 13 44 20.8661911116 +66 37 17.637144064   16.84 16.62     ~ 34 0
4 BD+33 2642 pA* 15 51 59.8857490337 +32 56 54.327647794 9.806 10.61 10.73 10.884 10.961 O7p 391 0

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2021.09.16-12:24:55

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