J/A+A/567/A56 CIG 340 (IC 2487) HI mapping (Scott+, 2014)
A ∼12 kpc HI extension and other HI asymmetries in the isolated galaxy
CIG 340 (IC 2487).
Scott T.C., Sengupta C., Verdes Montenegro L., Bosma A., Athanassoula E.,
Sulentic J., Espada D., Yun M.S., Argudo-Fernandez M.
<Astron. Astrophys. 567, A56 (2014)>
=2014A&A...567A..56S 2014A&A...567A..56S
ADC_Keywords: Galaxies, radio ; H I data
Keywords: galaxies: individual CIG 340 (IC 2487) - galaxies: ISM -
radio lines: galaxies
Abstract:
HI kinematic asymmetries are common in late-type galaxies
irrespective of environment, although the amplitudes are strikingly
low in isolated galaxies. As part of our studies of the HI morphology
and kinematics in isolated late-type galaxies we have chosen several
very isolated galaxies from the AMIGA sample for HI mapping. We present
here the results of HI mapping of CIG 340 (IC 2487) which was selected
because its integrated HI spectrum has a very symmetric profile
(Aflux=1.03±0.02).
Optical images of the galaxy hinted at a warped disk in contrast to
the symmetric integrated HI spectrum profile. Our aim is to determine
the extent to which the optical asymmetry is reflected in the resolved
HI morphology and kinematics.
Resolved 21-cm HI line mapping has been carried out using the Giant
Metrewave Radio Telescope (GMRT). The HI morphology and kinematics
from this mapping together with other multi-wavelength data have been
used to study the relationship between the HI and stellar components
of CIG 340.
Description:
High resolution (CIG340-HIGHRES-CUBE.FITS) and low resolution
(CIG340-LOWRES-CUBE.FITS) HI data cubes from GMRT observations of the
isolated galaxy CIG 340 (IC 2487).
Objects:
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RA (2000) DE Designation(s)
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09 30 09.19 +20 05 27.3 CIG 340 = IC 2487
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
list.dat 135 2 List of FITS data cubes
fits/* . 2 Individual FITS data cubes
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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 I1 arcsec/pix Scale Scale of the image
22- 25 I4 --- Nx [512/1024] Number of pixels along X-axis
26 A1 --- --- [x]
27- 30 I4 --- Ny [512/1024] Number of pixels along Y-axis
31 A1 --- --- [x]
32- 34 I3 --- Nz [55/111] Number of slices
36- 40 F5.2 arcsec Beam1 Beam size
41 A1 --- --- [x]
42- 46 F5.2 arcsec Beam2 Beam size
48- 54 F7.2 km/s bVel Lower value of velocity FELO-HEL
60- 66 F7.2 km/s BVel Upper value of velocity FELO-HEL
72- 78 F7.4 km/s dVel Channel width
80- 82 F3.1 mJy rms rms (per channel) in mJy/beam
84- 89 F6.2 Mibyte size [111/221] Size of FITS file
91-114 A24 --- FileName Name of the FITS file in subdirectory fits
116-135 A20 --- Title Title of the file
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Acknowledgements:
Tom Scott, tom(at)iaas.es
(End) Patricia Vannier [CDS] 01-Jul-2014