Astronomical Data Center
ADC/CDS Standard Document for Catalog:
/journal_tables/A+AS/52/63/
The following is the "ReadMe" document that describes this ADC catalog. You can access the files described here in three ways:
J/A+AS/52/63 H I Survey of the Galactic Center Region (Burton+ 1983)
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The gas distribution in the central region of the Galaxy. IV. A survey of
neutral hydrogen in the region 349 < l < 13, -10 < b < 10, |v| < 350 km/s
Burton W.B., Liszt H.S.
<Astron. Astrophys. Suppl. Ser. 52, 63 (1983)>
=1983A&AS...52...63B
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ADC_Keywords: H I data; Interstellar medium; Surveys; Radio sources
Keywords: Galaxy: structure - ISM: clouds - ISM: general -
ISM: kinematics and dynamics - surveys
Description:
Presented here are 21-cm observations of neutral hydrogen emission from the
core of our Galaxy made over a period of several years with the 140-foot
telescope of the National Radio Astronomy Observatory. The survey covers
the region 348 < l < 10, -10 < b < 10 with an angular resolution of 21' and
a grid spacing of 0.5 degrees in both l and b, and the velocity range
|v| < 310 km/s with a kinematic resolution of 5.5 km/s. The sensitivity of
the data generally corresponds to an antenna-temperature rms level of 0.02 K
or better.
The H I spectra from the survey are archived in a single three-dimensional
(v, l, b) data cube in FITS image format. There are 224 velocity channels
with a step of 2.75 km/s between channels. The intensities are given in
units of antenna temperature and can be converted to brightness temperature
units by multiplying by a factor of (1.52).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
hicenter.fit 2880 327 velocity-longitude-latitude data cube for entire
survey
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Acknowledgements:
We thank the authors for making the data available for public distribution.
References:
Burton W. B., and Liszt H. S.: 1983 A&AS 52, 63 =1983A&AS...52...63B
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(End) T. Sodroski [ADF/ADC] 30-Nov-1999
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