J/A+A/582/A2 Gum 31 870um continuum image (Duronea+, 2015)
870 µm continuum observations of the bubble-shaped nebula Gum 31.
Duronea N.U., Vasquez J., Gomez L., Cappa C.E., Firpo V.,
Lopez-Carballo C.H., Rubio M.
<Astron. Astrophys. 582, A2 (2015)>
=2015A&A...582A...2D 2015A&A...582A...2D (SIMBAD/NED BibCode)
ADC_Keywords: H II regions ; Photometry, millimetric/submm
Keywords: HII regions - ISM: bubbles - infrared: ISM
Abstract:
We are presenting here a study of the cold dust in the close environs
of the ring nebula Gum 31. We aim at deriving the physical properties
of the molecular gas and dust associated with the nebula, and
investigating its correlation with the star formation in the region,
that was probably triggered by the expansion of the ionization front
against its environment.
We make use of 870um emission data obtained with the Large APEX
Bolometer Camera (LABOCA) to map the dust emission. The 870um
emission provides an excellent probe of mass and density of dense
molecular clouds. The obtained LABOCA image was compared to archival
infrared, radio continuum, and optical images.
Description:
The FITS file contains an image of ∼25'x35' around the nebula Gum 31
observed with LABOCA in the Atacama Pathfinder EXperiment (APEX)
telescope, with an angular resolution of 19.2"
Objects:
-----------------------------------------
RA (2000) DE Designation(s)
-----------------------------------------
10 37.7 -58 39 Gum 31 = IC 2599
-----------------------------------------
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
list.dat 129 1 Information of fits file
scans.dat 100 48 List of scans (also in the fits file)
870mic.fits 2880 1360 870 micron continuum fits image
--------------------------------------------------------------------------------
Byte-by-byte Description of file: list.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 F9.5 deg RAdeg Right ascension of center image (J2000)
10- 18 F9.5 deg DEdeg Declination of center image (J2000)
20 I1 arcsec/pix Scale [4] Scale of the image
22- 24 I3 --- Nx [406] Number of pixels along X-axis
26- 28 I3 --- Ny [522] Number of pixels along Y-axis
30- 32 I3 Kibyte size [858] Size of the file
34- 44 A11 --- FileName Name of the fits file
46-129 A84 --- Title Title of the file
--------------------------------------------------------------------------------
Byte-by-byte Description of file: scans.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 I5 --- Scan Scan number
7- 16 E10.5 s Time Integration time
18- 21 I4 --- Frames Frames
23- 40 F18.16 --- RG Relative gain
42- 60 F19.17 ---- NEFD Noise Equivalent Flux Density
62- 66 F5.2 s HIpass HIpass time scale
68- 80 E13.8 --- Res Filter resolution
82-100 A19 --- Obs.Date Observation date (YYYY-MM-DDThh:mm:ss)
--------------------------------------------------------------------------------
Acknowledgements:
Nicolas Urbano Duronea, duronea(at)iar.unlp.edu.ar
Inst. Argentino de Radioastronomia
(End) Nicolas Duronea [IAR], Patricia Vannier [CDS] 06-Jul-2015