VIII/9 Argentina High-Latitude H I Survey (Colomb 1980)
The Argentina High-Latitude H I Survey
Colomb F.R., Poppel W.G.L., Heiles C.
<Astron. & Astrophys. Suppl., 40, 47 (1980)>
=1980A&AS...40...47C 1980A&AS...40...47C
ADC_Keywords: Radio sources ; Surveys ; Radio lines ; H I data
Description:
This survey consists of H I 21-cm spectra covering the southern sky
with absolute galactic latitude |b|>10 degrees and a declination
dec←25 degrees. The observations were made with the 30m telescope of
the Instituto Argentino de Radioastronomia during 1973 to 1977 and
were described in Colomb et al. (1977A&AS...29...89C 1977A&AS...29...89C). The data were
obtained by keeping the telescope fixed on the meridian at the desired
declination and letting the sky drift through the field. The
individual spectra were obtained with a 56-channel filterbank and
covering the velocity range from about -40 to +40km/s. The velocity
resolution is 2km/s, and the beamwidth is 30arcmin.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 396 55470 Southern sky survey data
software.for 80 459 Two Fortran main codes and several subroutines
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Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1- 6 I6 mdeg mGLON Galactic longitude in units of 0.001 degrees
7- 12 I6 mdeg mGLAT Galactic latitude in units of 0.001 degrees
13- 14 I2 h RAh Right ascension (1950)
15- 16 I2 min RAm RA in minutes (1950)
17- 18 I2 s RAs RA in seconds (1950)
19 A1 --- DE- Sign of declination
20- 21 I2 deg DEd [0,90] DEC in degree (1950)
22- 23 I2 arcmin DEm DEC in arcminutes (1950)
24- 25 I2 arcsec DEs DEC in arcseconds (1950)
26- 27 I2 h LST.h Local Standard Time (LST) in hours
28- 29 I2 min LST.m LST in minutes
30- 31 I2 s LST.s LST in seconds
32- 37 A6 "YYMMDD" ObsDate Date of observation in yymmdd (year month day)
38- 47 5I2 --- Bscan Bad scan numbers (always 0)
48- 53 I6 dam/s Vmin *Central velocity at channel 1
54- 59 I6 dam/s Vmax *Central velocity at channel 56
60 I1 --- Qual Quality factor (always 0)
61-396 56I6 0.01K TA *Antenna temperature in units of 0.01K
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Note on Vmin, Vmax, TA:
The VLSRs of the 56 channels corresponding to the measured antenna
temperatures can be obtained by the following FORTRAN statements:
V1 = Vmin * 0.01 ! in units of km/s
V56= Vmax * 0.01
dv = (V56-V1)/55.
do i = 1, 56
VLSR(i)= V1 + (i-1)* dv
enddo
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Brief description of software.for:
FORTRAN codes for use in extracting spectra from the H I surveys of
Heiles and Habing (VIII/7), Parkes (VIII/8), this catalog (VIII/9),
Bell Labs (VIII/10), and Weaver and Williams (VIII/11)
History:
* The catalog was received at ADC in 1992; a brief introduction
was added at CDS (Francois Ochsenbein).
* The documentation was added in December 1995 at ADC (C.-H. Joseph Lyu)
* The documentation was revised in November 2003 at CDS (F. Ochsenbein)
Acknowledgements:
The General Information on High-latitude 21-cm Line Surveys by Carl
Heiles (1988), University of California, Berkeley was used to create
this ReadMe file.
(End) C.-H. Joseph Lyu [Hughes STX/NASA] 12-Dec-1995