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VIII/58     A Survey of Radio H II Regions in the Northern Sky (Lockman+ 1989)

A Survey of Radio H II Regions in the Northern Sky Lockman F.J. <Astrophys. J. Suppl. 71, 469 (1989)> =1989ApJS...71..469L
ADC_Keywords: H II regions ; Radio sources ; Radio lines; Surveys Description: Nearly 500 radio continuum sources near the Galactic plane at declinations greater than -37 degrees were examined for radio recombination line emission to see if they might be HII regions. A total of 462 were detected, about half of these for the first time. The data are presented in an extensive table. Among the newly discovered nebulae are several with recombinations lines so narrow that their electron temperature must be less than 4600 K. In one case the line width (in several transitions) is only 11.6 km/s, requiring electron temperatures less than about 2900 K. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 98 462 Catalog of radio H II regions
Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 7 F7.3 deg GLON Galactic longitude 8- 14 F7.3 deg GLAT Galactic latitude 17- 18 I2 h RAh Right Ascension (1950) 19- 20 I2 min RAm Right Ascension (1950) 21- 24 F4.1 s RAs Right Ascension (1950) 25 A1 --- DE- Declination sign (1950) 26- 27 I2 deg DEd Declination (1950) 28- 29 I2 arcmin DEm Declination (1950) 30- 31 I2 arcsec DEs Declination (1950) 35- 38 I4 mK T Peak antenna temperature of detected line 40- 43 F4.1 mK e_T Uncertainty (1 sigma) in peak antenna temperature 47- 51 F5.1 km/s FWHM Full-width at half-maximum of detected line 53- 56 F4.1 km/s e_FWHM Uncertainty (1 sigma) in FWHM 61- 65 F5.1 km/s VLSR Velocity with respect to the local standard of rest 67- 70 F4.1 km/s e_VLSR Uncertainty (1 sigma) in VLSR 75- 78 F4.1 mK GRMS RMS deviation of observed line from Gaussian fit 80- 83 F4.1 mK BRMS RMS in baseline parts of spectrum 84- 98 A15 --- Notes *Source Comments
Note on Notes: Mainly gives name of optical counterpart to radio source. Also identifies sources observed at bands other than or in addition to 3 cm. If an H II region has been detected in several bands, the most accurate measurement is listed and the others just noted. Letter "D" refers to sources that show two recombination lines at distinctly different velocities. "Note" indicates that there are additonnal notes in main reference.
Acknowledgements: H. Andernach and S. Trushkin scanned the published data table, made format changes, and provided a copy of their electronic version to ADC.
(End) Tom Sodroski [SSDOO/ADC] 26-Jul-1999
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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