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J/A+A/614/A94       ESO 362-G18 datacube                     (Humire+, 2018)

An outflow in the Seyfert ESO 362-G18 revealed by Gemini-GMOS/IFU observations. Humire P.K., Neil N.M., Finlez C., Firpo V., Slater R., Lena D., Soto P.R., Munoz D., Riel R., Schmitt H.R., Kraemer S.B., Schnorr-Mueller A., Fischer T.C., Robinson A., Storchi-Bergmann T., Crenshaw M., Elvis M.S <Astron. Astrophys. 614, A94 (2018)> =2018A&A...614A..94H (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, Seyfert ; Spectrophotometry ; Optical Keywords: galaxies: active - galaxies: individual: ESO 362-G18 - galaxies: Seyfert - galaxies: nuclei - galaxies: kinematics and dynamics Abstract: We present two-dimensional stellar and gaseous kinematics of the inner 0.7x1.2kpc2 of the Seyfert 1.5 galaxy ESO 362-G18, derived from optical (4092-7338Å) spectra obtained with the GMOS integral field spectrograph on the Gemini South telescope at a spatial resolution of 170 pc and spectral resolution of 36km/s. ESO 362-G18 is a strongly perturbed galaxy of morphological type Sa or S0/a, with a minor merger approaching along the NE direction. Previous studies have shown that the [OIII] emission shows a fan-shaped extension of ∼10" to the SE. We detect the [OIII] doublet, [NII] and Hα emission lines throughout our FOV. The stellar kinematics is dominated by circular motions in the galaxy plane, with a kinematic position angle of ∼137° and is centred approximately on the continuum peak. The gas kinematics is also dominated by rotation, with kinematic position angles ranging from 122° to 139°, projected velocity amplitudes of the order of 100km/s, and a mean velocity dispersion of 100km/s. A double-Gaussian fit to the [OIII]λ5007 and Hα lines, which have the highest signal to noise ratios of the emission lines, reveal two kinematic components: (1) a component at lower radial velocities which we interpret as gas rotating in the galactic disk; and (2) a component with line of sight (LOS) velocities 100-250km/s higher than the systemic velocity, interpreted as originating in the outflowing gas within the AGN ionization cone. We estimate a mass outflow rate of 7.4x10-2M/yr in the SE ionization cone (this rate doubles if we assume a biconical configuration), and a mass accretion rate on the supermassive black hole (SMBH) of 2.2x10-2M/yr. The total ionized gas mass within 84pc of the nucleus is 3.3x105M; infall velocities of ∼34km/s in this gas would be required to feed both the outflow and SMBH accretion. Description: The observations were obtained with the integral field unit of the Gemini Multi-Object Spectrograph (GMOS-IFU) at the Gemini South telescope on the night of December 23, 2014 (Gemini project GS-2014B-Q-20). The observations were made in the one-slit mode of GMOS-IFU, in which the science IFU has a field of view (hereafter FOV) of 3.5"x5". Two pointings, shifted by 0.5" were observed so that the total sky coverage was 4"x5" centred on the nucleus. Two exposures of 900 seconds were made at each pointing with a shift in the central wavelength of 50Å between the two. Objects: ------------------------------------------------------ RA (2000) DE Designation(s) ------------------------------------------------------ 05 19 35.81 -32 39 28.0 ESO 362-G18 = ESO 362-18 ------------------------------------------------------ File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file list.dat 99 1 Informations on fits datacube fits/* 0 1 Datacube
Byte-by-byte Description of file: list.dat
Bytes Format Units Label Explanations
1- 9 F9.5 deg RAdeg Right Ascension of center (J2000) 10- 18 F9.5 deg DEdeg Declination of center (J2000) 20- 21 I2 --- Nx Number of pixels along X-axis 23- 24 I2 --- Ny Number of pixels along Y-axis 26- 29 I4 --- Nz Number of slices 31- 37 F7.2 0.1nm blambda Lower value of wavelength interval 39- 45 F7.2 0.1nm Blambda Upper value of wavelength interval 47- 54 F8.6 0.1nm dlambda Wavelength resolution 56- 60 I5 Kibyte size Size of FITS file 62- 70 A9 --- FileName Name of FITS file, in subdirectory fits 72- 99 A28 --- Title Title of the FITS file
Acknowledgements: Pedro Humire, phumire(at)udec.cl
(End) Patricia Vannier [CDS] 19-Jun-2018
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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