J/A+A/643/A127 5 Seyferts reduced CO(2-1) cubes (Dominguez-Fernandez+, 2020)
Searching for molecular gas inflows and outflows in the nuclear regions of
five Seyfert galaxies.
Dominguez-Fernandez A.J., Alonso-Herrero A., Garcia-Burillo S.,
Davies R.I., Usero A., Labiano A., Levenson N.A., Pereira-Santaella M.,
Imanishi M., Ramos Almeida C., Rigopoulou D.
<Astron. Astrophys. 643, A127 (2020)>
=2020A&A...643A.127D 2020A&A...643A.127D (SIMBAD/NED BibCode)
ADC_Keywords: Active gal. nuclei ; Galaxies, Seyfert ; Carbon monoxide ;
Radio lines
Keywords: galaxies: general - galaxies: kinematics and dynamics -
galaxies: Seyfert - galaxies: active
Abstract:
Active galactic nucleus (AGN) driven outflows are believed to play an
important role in regulating the growth of galaxies, mostly via
negative feedback. However, their effects on their hosts are far from
clear, especially for low- and moderate-luminosity Seyferts. To
investigate this issue, we obtained cold molecular gas observations,
traced by the CO(2-1) transition, using the NOEMA interferometer of
five nearby (distances between 19 and 58Mpc) Seyfert galaxies. The
resolution of ∼0.3-0.8 (∼30-100pc) and field of view of NOEMA
allowed us to study the CO(2-1) morphology and kinematics in the
nuclear regions (∼100pc) and up to radial distances of ∼900pc. We
detected CO(2-1) emission in all five galaxies with disky or
circumnuclear ring-like morphologies. We derived cold molecular gas
masses on nuclear (∼100pc) and circumnuclear (∼650pc) scales in the
range from 106 to 107M☉ and from 107 to 108M☉,
respectively. In all of our galaxies, the bulk of this gas is rotating
in the plane of the galaxy. However, noncircular motions are also
present. In NGC 4253, NGC 4388, and NGC 7465, we can ascribe the
streaming motions to the presence of a large-scale bar. In Mrk 1066
and NGC 4388, the noncircular motions in the nuclear regions are
explained as outflowing material due to the interaction of the AGN
wind with molecular gas in the galaxy disk. We conclude that for an
unambiguous and precise interpretation of the kinematics of the cold
molecular gas, we need detailed knowledge of the host galaxy (i.e.,
presence of bars, interactions, etc.), and also of the ionized gas
kinematics and ionization cone geometry.
Description:
The fully reduced CO(2-1) cubes for each Seyfert galaxy studied in the
paper, namely Mrk1066, NGC2273 (Mrk620), NGC4253 (Mrk766), NGC4388,
and NGC7465 (Mrk 313). The observations with the NOrthern Extended
Millimeter Array (NOEMA) were carried out between March 2015 and
December 2016 in the A configuration, except for one track of NGC 2273
that was observed with the B configuration with a variable number of
antennas ranging from six to eight. The cubes were reduced using the
Grenoble Image and Line Data Analysis Software (GILDAS) and,
specifically, were obtained using natural weight and only one
(NGC4388) was corrected by primary beam attenuation. For further
details, see section 2.1 of the paper. The five CO(2-1) cubes are in
FITS-format.
Objects:
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RA (2000) DE Designation(s)
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02 59 58.59 +36 49 13.82 Mrk1066 = UGC 2456
06 50 08.64 +60 50 45.01 NGC2273 = Mrk 620
12 18 26.52 +29 48 46.57 NGC4253 = Mrk 766
12 25 46.75 +12 39 43.51 NGC4388 = UGC 7520
23 02 00.96 +15 57 53.26 NGC7465 = Mrk 313
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
list.dat 133 5 List of fits datacubes
fits/* . 5 Individual fits datacubes
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Byte-by-byte Description of file: list.dat
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Bytes Format Units Label Explanations
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1- 9 F9.5 deg RAdeg Right Ascension of center (J2000)
10- 18 F9.5 deg DEdeg Declination of center (J2000)
20- 23 I4 --- Nx Number of pixels along X-axis
25- 28 I4 --- Ny Number of pixels along Y-axis
30- 32 I3 --- Nz Number of pixels along Z-axis
34- 41 F8.2 km/s bVRAD Lower value of VRAD interval
43- 49 F7.2 km/s BVRAD Upper value of VRAD interval
51- 57 F7.4 km/s dVRAD VRAD resolution
59- 65 I7 Kibyte size Size of FITS file
67-102 A36 --- FileName Name of FITS file, in subdirectory fits
104-133 A30 --- Title Title of the FITS file
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Acknowledgements:
Alejandro Javier Dominguez Fernandez, ajdfernandez(at)ucm.es
(End) Patricia Vannier [CDS] 05-Nov-2020