J/ApJS/73/359 1.49 GHz atlas of the IRAS bright galaxies (Condon+, 1990)
A 1.49 GHz atlas of the IRAS bright galaxy sample. Condon J.J., Helou G., Sanders D.B., Soifer B.T. <Astrophys. J. Suppl. Ser. 73, 359 (1990)> =1990ApJS...73..359C
ADC_Keywords: Radio continuum ; Infrared sources ; Galaxies, IR ; Galaxies, radio Keywords: galaxies: structure - infrared: sources - radio sources: galaxies Description: This catalog contains 1.49 GHz VLA observations of sources from the IRAS Bright Galaxy Sample. The original IRAS Bright Galaxy Sample (Soifer et al., 1987ApJ...320..238S) comprises 324 extragalactic objects with 60 micron flux densities above 5.4 Jy. It is the infrared analog of the radio 3CR or optical Shapley-Ames samples. Recalibration of the IRAS flux densities led to a revised Bright Galaxy Sample (Soifer et al., 1989AJ.....98..766S) containing 313 sources stronger than 5.24 Jy at 60 microns. Only one source from these samples was not detected (NGC1377) at 1.49 GHz. For most sources, multiple observations were conducted with different synthesized beam areas. Thus, for a given galaxy there may be several rows in the table reporting data at different angular resolution or reporting different radio components of the object. A low-resolution observation was used to yield an accurate total flux density and a high-resolution observation was used to resolve the brightest components clearly. These observations were originally presented in Condon, et al., (1990ApJS...73..359C). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file iras1490.dat 86 631 A 1.49 GHz Atlas of IRAS Bright Galaxy Sample (5.5° < Dec < 66°)
Byte-by-byte Description of file: iras1490.dat
Bytes Format Units Label Explanations
1- 11 A11 --- Name Name of galaxy (1) 13- 16 F4.1 arcsec Beam ? Restoring beamwidth (FWHM) (2) 18- 19 I2 --- Contour ? Lowest contour plotted in published paper (3) 21 A1 --- f_S1.49 Flagged if flux is estimated or uncertain (4) 22- 27 F6.1 mJy S1.49 ? Total 1.49 GHz corrected flux density (4) 29- 30 I2 h RAh Right Ascension (B1950) (hour) (5) 31- 32 I2 min RAm Right Ascension (B1950) (min) 33- 37 F5.2 s RAs Right Ascension (B1950) (sec) 38 A1 --- DE- Declination sign (B1950) (5) 39- 40 I2 deg DEd Declination (B1950) (deg) 41- 42 I2 arcmin DEm Declination (B1950) (arcmin) 43- 46 F4.1 arcsec DEs Declination (B1950) (arcsec) 47 A1 --- pos_flg [ eo*] Flag denoting details of position (5) 48- 51 I4 arcsec oRA ? Radio minus infrared right ascension offset (6) 53- 55 I3 arcsec oDE ? Radio minus infrared declination offset (6) 57- 62 F6.1 mJy S1.49p ? Peak flux density at 1.49 GHz (7) 64- 69 F6.1 mJy S1.49i ? Integrated flux density at 1.49 GHz (7) 71 A1 --- l_MajAxis [ <] Flagged if major axis is an upper limit (8) 72- 76 F5.1 arcsec MajAxis ? FWHM major axis diameter (8) 78- 82 F5.1 arcsec MinAxis ? FWHM minor axis diameter (8) 84- 86 I3 deg PA ? Major axis position angle (8)
Note (1): This column gives the name of the galaxy. Note that for a given galaxy there may be several rows in the table reporting data at different angular resolution or reporting different radio components of the object. Full names of the galaxies as published (e.g. IRAS, NGC, UGC, MCG, etc.) have been shortened for convenience in the electronic version. Note (2): The restoring beamwidth (FWHM) is given, in arcsec, in the beam column. Beamwidths of 48", 54", or 60" indicate D- or C/D-array maps from Condon (1987ApJS...65..485C) or Condon, Yin, and Burstein (1987ApJS...65..543C). Beamwidths of 15", 18", 21", or 24" indicate C array observations; beamwidths of 5", 6", 7", or 8" indicate B array observations; and beamwidths of 1.5", 1.8", 2.1", or 2.4" indicate A array observations. If there is no beam size value given, the flux density (see S1.49 and f_S1.49) is estimated from single-dish observations. Note that for N3735, N4038/9, N4490, N5194/5, N5427, N5678 and N7448 the beam size is approximate only. Note (3): The contour column gives the value of n specifying the lowest contour plotted in the published paper, 2(n/2) mJy per restoring beam solid angle. Note (4): These columns give the total 1.49 GHz flux density obtained by direct integration over the map and corrected for recognizable confusion. Usually the integration area is obvious from the published contour map; if not, it is described in the notes (also in published paper). The f_S1.49 column is marked with a "u" if the flux density is uncertain, or with an "e" if the flux density is estimated from single-dish observations. Note (5): These columns give the B1950 right ascension and declination of the source, in radians and in degrees. The radio position errors of all but the most extended sources are less than 1". Positions are radio positions unless the pos_flg column is marked with an "o" (19 objects), in which case the optical position is from LEDA (Lyon-Meudon Extragalactic Database). Where the pos_flg column is marked with an asterisk ('*'), the position is accurate to an extra decimal place (0.01s in right ascension and 0.1" in declination). Note that for 15 objects with missing positions in the original table we copied the radio position from the highest angular resolution measurement and flagged it with 'e' in the pos_flg column. Note (6): These columns give the radio-minus-infrared offset in right ascension and declination, in arcsec. Note (7): These columns give the peak and integrated 1.49 flux densities, in mJy. These columns do not refer to the whole radio source but give fluxes of Gaussian fits to one or more components of the source. Where no integrated flux density is given, only the source peak was fitted. For full Gaussian fits down to the baseline level, the Gaussian integrated flux density is also listed. If a component was clearly resolved, its deconvolved major and minor FWHM diameters and its major-axis position angle are also given. Note (8): These columns give parameters of Gaussian fits to one or more components of the source. The f_MajAxis column is marked with a '<' symbol if the major axis listed is an upper limit. The major axis and minor axis (deconvolved sizes, in arcsec) and the position angle (in degrees) are given when a component was clearly resolved.
History: "The catalogue was originally archived as A052 by H. Andernach () and the ADS documentation prepared in collaboration with Carolyn Stern Grant ()."
(End) Patricio Ortiz [CDS] 01-Apr-1999
(End) Patricio Ortiz [CDS] 01-Apr-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|