This loads a font easier to read for people with dyslexia.
This renders the document in high contrast mode.
This renders the document as white on black
This can help those with trouble processing rapid screen movements.

Radio Continuum Images of the Large Magellanic Cloud

4.8 & 8.6 GHz

The Large Magellanic Cloud at 4.8GHz

Observations by J.Dickel, R.Gruendl, V.McIntyre, D.K.Milne (2001, 2002, 2003). Published in Astronomical Journal, 129, 790 (2005) (2005AJ....129..790D).

The project was intended to gather a data set with uniform uv-plane coverage, to produce images with sufficient spatial resolution and sensitivity to identify most of the SNRs and HII regions, and (together with Parkes observations) give a good representation of the smooth emission within the galaxy. The 6km antenna was included to allow discrimination of point sources.

Images and visibility data of the LMC at 4.8 and 8.6 GHz.
     
Images
File Frequency Description
LMC4.8-i.a.fits 4.8GHz Total intensity image, ATCA only
LMC4.8-i.f.fits 4.8GHz Total intensity, ATCA only, match-filtered
LMC4.8-i.m.fits 4.8GHz Total intensity, ATCA+Parkes
LMC4.8-p.a.fits 4.8GHz Polarized intensity image, ATCA only
LMC4.8-p.m.fits 4.8GHz Polarized intensity, ATCA+Parkes
LMC4.8-pa.a.fits 4.8GHz E-vector polzn angle image, ATCA only
LMC4.8-pa.m.fits 4.8GHz E-vector polzn angle, ATCA+Parkes
LMC4.8-q.a.fits 4.8GHz Stokes Q image, ATCA only
LMC4.8-q.m.fits 4.8GHz Stokes Q, ATCA+Parkes
LMC4.8-u.a.fits 4.8GHz Stokes U image, ATCA only
LMC4.8-u.m.fits 4.8GHz Stokes U, ATCA+Parkes
     
LMC8.6-i.a.fits 8.6GHz Total intensity image, ATCA only
LMC8.6-i.f.fits 8.6GHz Total intensity, ATCA only, match-filtered
LMC8.6-i.f.m.fits 8.6GHz Total intensity, match-filtered ATCA + Parkes
LMC8.6-i.m.fits 8.6GHz Total intensity, ATCA+Parkes
LMC8.6-p.a.fits 8.6GHz Polarized intensity image, ATCA only
LMC8.6-p.c.fits 8.6GHz Polarized intensity image, ATCA only, convolved
LMC8.6-pa.a.fits 8.6GHz E-vector polzn angle image, ATCA only
LMC8.6-pa.c.fits 8.6GHz E-vector polzn angle image, ATCA only, convolved
LMC8.6-q.a.fits 8.6GHz Stokes Q image, ATCA only
LMC8.6-q.c.fits 8.6GHz Stokes Q, ATCA only, convolved
LMC8.6-u.a.fits 8.6GHz Stokes U image, ATCA only
LMC8.6-u.c.fits 8.6GHz Stokes U, ATCA only, convolved
     
Visibility data
File Frequency Description
     
LMC4.8_A-uv.fits 4.8GHz Tile A, calibrated visibility data
LMC4.8_B-uv.fits 4.8GHz Tile B, calibrated visibility data
LMC4.8_C-uv.fits 4.8GHz Tile C, calibrated visibility data
LMC4.8_D-uv.fits 4.8GHz Tile D, calibrated visibility data
LMC4.8_E-uv.fits 4.8GHz Tile E, calibrated visibility data
LMC4.8_F-uv.fits 4.8GHz Tile F, calibrated visibility data
LMC4.8_G-uv.fits 4.8GHz Tile G, calibrated visibility data
LMC4.8_H-uv.fits 4.8GHz Tile H, calibrated visibility data
LMC4.8_I-uv.fits 4.8GHz Tile I, calibrated visibility data
LMC4.8_J-uv.fits 4.8GHz Tile J, calibrated visibility data
LMC4.8_K-uv.fits 4.8GHz Tile K, calibrated visibility data
LMC4.8_L-uv.fits 4.8GHz Tile L, calibrated visibility data
LMC4.8_M-uv.fits 4.8GHz Tile M, calibrated visibility data
LMC4.8_N-uv.fits 4.8GHz Tile N, calibrated visibility data
LMC4.8_O-uv.fits 4.8GHz Tile O, calibrated visibility data
LMC4.8_P-uv.fits 4.8GHz Tile P, calibrated visibility data
     
LMC8.6_A-uv.fits 8.6GHz Tile A, calibrated visibility data
LMC8.6_B-uv.fits 8.6GHz Tile B, calibrated visibility data
LMC8.6_C-uv.fits 8.6GHz Tile C, calibrated visibility data
LMC8.6_D-uv.fits 8.6GHz Tile D, calibrated visibility data
LMC8.6_E-uv.fits 8.6GHz Tile E, calibrated visibility data
LMC8.6_F-uv.fits 8.6GHz Tile F, calibrated visibility data
LMC8.6_G-uv.fits 8.6GHz Tile G, calibrated visibility data
LMC8.6_H-uv.fits 8.6GHz Tile H, calibrated visibility data
LMC8.6_I-uv.fits 8.6GHz Tile I, calibrated visibility data
LMC4.8_J-uv.fits 4.8GHz Tile J, calibrated visibility data
LMC4.8_K-uv.fits 4.8GHz Tile K, calibrated visibility data
LMC4.8_L-uv.fits 4.8GHz Tile L, calibrated visibility data
LMC4.8_M-uv.fits 4.8GHz Tile M, calibrated visibility data
LMC4.8_N-uv.fits 4.8GHz Tile N, calibrated visibility data
LMC4.8_O-uv.fits 4.8GHz Tile O, calibrated visibility data
LMC4.8_P-uv.fits 4.8GHz Tile P, calibrated visibility data
     
README Brief description of the files and the project.
MD5SUMS md5 checksums of the data files
     

The visibility data have been grouped into sets of pointings centered on the locations tabulated below. For full fidelity, all the visibility data should be used to generate images. However for small fields of interest one may be able to use the visibility data for just the relevant subfield.

The figure designations used in the electronic version of the paper differ from the tile designations used during observation. Here we show the correspondence. The positions in Table 1 of the paper refer to the centres of the displayed images, not the tile centres.

Tile centres
Tile ID Figure ID Field Name Field Centre (J2000)
RA Dec
A j SEE 05:45:51 -69:41:48
B n SSEE 05:47:48 -71:16:00
C k SE 05:28:38 -69:47:13
D o SSE 05:29:22 -71:22:10
E g NE 05:28:04 -68:12:01
F c NNE 05:27:31 -68:12:01
G f NEE 05:43:58 -68:06:55
H b NNEE 05:42:24 -66:32:02
I e NNWW 04:57:51 -66:32:02
J h NW 05:12:12 -68:12:01
K d NNW 05:12:45 -66:36:49
L i NWW 04:56:16 -68:06:55
M m SWW 04:54:38 -69:41:48
N l SW 05:11:39 -69:47:13
O p SSW 05:11:02 -71:22:10
P q SSWW 04:52:40 -71:16:00
Approximate resolution and sensitivity of the images
Freq
(GHz)
FWHM
(arcsec)
rms
(mJy.bm-1)
4.8 33 0.3
8.6 20 0.5

The 'match-filtered' images have been constructed from a subset of the uv-data; the long spacings at 8.6 GHz and the short spacings at 4.8 GHz have been excluded to give the same range of spatial frequency response at both freqencies.