J/A+A/572/A40 Outflow of H2 gas from NGC3256 (Emonts+, 2014)
Outflow of hot and cold molecular gas from the obscured secondary nucleus of
NGC3256: closing in on feedback physics.
Emonts B.H.C., Piqueras-Lopez J., Colina L., Arribas S., Villar-Martin M.,
Pereira-Santaella M., Garcia-Burillo S., Alonso-Herrero A.
<Astron. Astrophys. 572, A40 (2014)>
=2014A&A...572A..40E 2014A&A...572A..40E
ADC_Keywords: Galaxies, nearby ; Interstellar medium ; Velocity dispersion ;
Radial velocities
Keywords: galaxies: individual: NGC 3256 - galaxies: starburst -
galaxies: active - galaxies: nuclei - ISM: jets, outflows -
ISM: dust, extinction
Abstract:
The nuclei of merging galaxies are often deeply buried in dense layers
of gas and dust. In these regions, gas outflows driven by starburst
and active galactic nuclear activity are believed to play a crucial
role in the evolution of these galaxies. However, to fully understand
this process it is essential to resolve the morphology and kinematics
of such outflows. Using near-infrared integral-field spectroscopy
obtained with SINFONI on the Very Large Telescope, we detect a
kpc-scale structure of high-velocity molecular hydrogen (H2) gas
associated with the deeply buried secondary nucleus of the
infrared-luminous merger-galaxy NGC 3256. We show that this
structure is most likely the hot component of a molecular outflow,
which was recently also detected in the cold molecular gas through CO
emission.
Description:
These are the data products used in Fig.1 of the paper, based on data
obtained with VLT/SINFONI. Included are the "flux", "velocity" and
"velocity dispersion" (i.e. FWHM/2.35) maps of both the narrow
("disc") and broad ("outflow") component of the hot molecular H2
emission in NGC 3256. Units are in x10E-17erg/s/cm2 (flux) and km/s
(velocity + dispersion). Velocities are with respect to z=0.009354.
See the paper for a full description.
Objects:
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RA (2000) DE Designation(s)
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10 27 51.60 -43 54 18.0 NGC 3256 = MRC 1025-436
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
list.dat 89 6 List of FITS images
fits/* . 6 Individual FITS images
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See also:
J/MNRAS/405/857 : Star clusters in NGC 3256 (Goddard+, 2010)
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- 24 F5.3 arcsec/pix Scale [0.125] Scale of the image
26- 28 I3 --- Nx [132] Number of pixels along X-axis
29 A1 --- --- [x]
30- 32 I3 --- Ny [103] Number of pixels along Y-axis
34- 36 I3 Kibyte size [115/169] Size of FITS file
38- 49 A12 --- FileName Name of FITS file in subdirectory fits
51- 89 A39 --- Title Title of the files
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Acknowledgements:
Bjorn Emonts, bjornemonts(at)gmail.com
(End) Bjorn Emonts [CSIC-INTA], Patricia Vannier [CDS] 23-Sep-2014