J/A+A/567/L5 W3(OH) high angular resolution 7mm images (Dzib+, 2014)
High angular resolution 7mm images toward the UC HII region W3(OH).
Dzib S.A., Rodriguez L.F., Medina S.-N.X., Loinard L., Masque J.M.,
Kurtz S., Qiu K.
<Astron. Astrophys. 567, L5 (2014)>
=2014A&A...567L...5D 2014A&A...567L...5D
ADC_Keywords: H II regions ; Radio continuum
Keywords: ISM: jets and outflows - stars: formation -
accretion, accretion disks - ISM: individual objects: W3(OH) -
HII regions
Abstract:
Recent high angular resolution radio observations of the ultracompact
Hii region W3(OH) confirm the presence of an extremely compact
(0.05"), time-variable source near its center.
We use new, sensitive high angular resolution observations of radio
continuum and recombination lines to study the compact source in
W3(OH) and the ultracompact HII region itself.
We reduced and analyzed extensive Jansky Very Large Array observations
of W3(OH) in the continuum at 41.0GHz and in the H54α and
He54α lines.
Description:
We used seven out of eight observations of the VLA archive data from
project 12B-3321. The observations were made with the VLA in the A
configuration using the Q band (40.0-50.0GHz) receivers. The central
frequency was 41GHz, with a total bandwidth of 2GHz divided in 16
spectral windows of 128 channels of 1MHz each. The observation epochs
are 2012 October 6, 7, 12, 13, and 15.
Objects:
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RA (2000) DE Designation(s)
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02 27 04.1 +61 52 22 W3(OH) = IRAS 02232+6138
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
list.dat 330 8 List of FITS images
fits/* . 8 Individual FITS images
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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- 24 F5.3 arcsec/pix Scale [0.002]? Scale of the image
26- 29 I4 --- Nx [258/1992] Number of pixels along X-axis
30 A1 --- --- [x]
31- 34 I4 --- Ny [80/2046] Number of pixels along Y-axis
36- 42 F7.4 GHz Freq [40.4/41] Frequency
48- 53 F6.3 GHz BFreq ? Upper value of frequency interval
(for Fig. 3)
59- 64 I6 Hz dFreq ? Frequency resolution (for Fig. 3)
66- 70 I5 Kibyte size [90/15933] Size of FITS file
72- 81 A10 --- FileName Name of the FITS file in subdirectory fits
83-330 A248 --- Title Title of the file
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Acknowledgements:
Sergio A. Dzib, sdzib(at)mpifr-bonn.mpg.de
(End) Patricia Vannier [CDS] 02-Jul-2014