J/A+AS/80/215 J/A+AS/80/215 Lunar occultations of weak radio sources C E Akujor M N Joshi I Kazes Astron. Astrophys. Suppl. Ser. 80 215 1989 1989A&AS...80..215A Radio continuum Radio lines Radio sources catalogs occultations radio spectrum weak radio sources: general This catalog contains the results of lunar occultation observations of 106 radio sources within declination +/- 19 degrees at 327 MHz. There are 171 sources listed in the catalog due to multiple components for some of the radio sources. Flux densities were measured at 327 MHz by lunar occultation with the Ooty Telescope. Flux densities have also been measured at 18 cm (1669 MHz) and 21 cm (1413 MHz) using the Nancay telescope. Optical identifications on the basis of the radio positions and angular structures are given. This catalog is a merge of table 1 and table 2 from the publication.

Name Name of source number=1 The Name column gives the radio source name. The IAU designation is used throughout. The Oname (other name) column gives the most common name of the radio source from other catalogs, such as 4C, MG, PKS etc. Some corrections were made to the data in order that the source names were consistent between the two tables. --- Note * if a note on the source in the paper number=2 The 'Note' column is marked with an asterisk if there are comments or notes on the source in the published paper. The 'comp' column gives the individual component name if the source shows more than a single structure. A 'CN' in this column means the position is that of the radio centroid. --- comp Component of source number=2 The 'Note' column is marked with an asterisk if there are comments or notes on the source in the published paper. The 'comp' column gives the individual component name if the source shows more than a single structure. A 'CN' in this column means the position is that of the radio centroid. --- RAh Right Ascension (B1950) (hour) h RAm Right Ascension (B1950) (min) min RAs Right Ascension (B1950) (sec) s e_RAs Error on RA s DE- Declination sign (B1950) --- DEd Declination (B1950) (deg) deg DEm Declination (B1950) (arcmin) arcmin DEs Declination (B1950) (arcsec) arcsec e_DEs Error on Dec arcsec S327 Flux density at 327 MHz number=3 These columns give flux densities and errors at 327 MHz, 1413 MHz, and 1669 MHz. All flux density measurements are in Jy. The 327 MHz flux densities are from the Ooty telescope; the 1413 MHz and 1669 MHz flux densities are from the dual-reflector Nancay Telescope. Errors include contributions from the integration of the different observation cycles for each channel, the integration of the channels for each wavelength, and contributions from conversion to flux densities using calibrator fluxes. Flux densities were measured on the scale of Baars, et al. (1977A&A....61...99B). One 327 flux density was changed to make it consistent with table 2 of the published paper. See details under "History:" below. Jy e_S327 Error on 327 flux density number=3 These columns give flux densities and errors at 327 MHz, 1413 MHz, and 1669 MHz. All flux density measurements are in Jy. The 327 MHz flux densities are from the Ooty telescope; the 1413 MHz and 1669 MHz flux densities are from the dual-reflector Nancay Telescope. Errors include contributions from the integration of the different observation cycles for each channel, the integration of the channels for each wavelength, and contributions from conversion to flux densities using calibrator fluxes. Flux densities were measured on the scale of Baars, et al. (1977A&A....61...99B). One 327 flux density was changed to make it consistent with table 2 of the published paper. See details under "History:" below. Jy S1413 Flux density at 1413 MHz number=3 These columns give flux densities and errors at 327 MHz, 1413 MHz, and 1669 MHz. All flux density measurements are in Jy. The 327 MHz flux densities are from the Ooty telescope; the 1413 MHz and 1669 MHz flux densities are from the dual-reflector Nancay Telescope. Errors include contributions from the integration of the different observation cycles for each channel, the integration of the channels for each wavelength, and contributions from conversion to flux densities using calibrator fluxes. Flux densities were measured on the scale of Baars, et al. (1977A&A....61...99B). One 327 flux density was changed to make it consistent with table 2 of the published paper. See details under "History:" below. Jy e_S1413 Error on 1413 flux density number=3 These columns give flux densities and errors at 327 MHz, 1413 MHz, and 1669 MHz. All flux density measurements are in Jy. The 327 MHz flux densities are from the Ooty telescope; the 1413 MHz and 1669 MHz flux densities are from the dual-reflector Nancay Telescope. Errors include contributions from the integration of the different observation cycles for each channel, the integration of the channels for each wavelength, and contributions from conversion to flux densities using calibrator fluxes. Flux densities were measured on the scale of Baars, et al. (1977A&A....61...99B). One 327 flux density was changed to make it consistent with table 2 of the published paper. See details under "History:" below. Jy S1669 Flux density at 1669 MHz number=3 These columns give flux densities and errors at 327 MHz, 1413 MHz, and 1669 MHz. All flux density measurements are in Jy. The 327 MHz flux densities are from the Ooty telescope; the 1413 MHz and 1669 MHz flux densities are from the dual-reflector Nancay Telescope. Errors include contributions from the integration of the different observation cycles for each channel, the integration of the channels for each wavelength, and contributions from conversion to flux densities using calibrator fluxes. Flux densities were measured on the scale of Baars, et al. (1977A&A....61...99B). One 327 flux density was changed to make it consistent with table 2 of the published paper. See details under "History:" below. Jy e_S1669 Error on 1669 flux density number=3 These columns give flux densities and errors at 327 MHz, 1413 MHz, and 1669 MHz. All flux density measurements are in Jy. The 327 MHz flux densities are from the Ooty telescope; the 1413 MHz and 1669 MHz flux densities are from the dual-reflector Nancay Telescope. Errors include contributions from the integration of the different observation cycles for each channel, the integration of the channels for each wavelength, and contributions from conversion to flux densities using calibrator fluxes. Flux densities were measured on the scale of Baars, et al. (1977A&A....61...99B). One 327 flux density was changed to make it consistent with table 2 of the published paper. See details under "History:" below. Jy Sp-Index Spectral index between 327 and 1669 MHz number=4 This column gives the spectral index between 327 MHz and 1669 MHz. 1413 MHz flux densities are used where there is no measurement at 1669 MHz. Alpha is defined as S {prop.to} nu^{(-alpha)}^. --- PosAng_i Position angle of scan in immersion occultation number=5 The PosAng_i column gives the position angle (in degrees) of scan in immersion occultation. The Beta_i column gives the effective resolution achieved along the position angle given by PosAng_i. The Size_i column gives the derived angular size of the whole source or an individual component along the position angle given by PosAng_i and with effective resolution given by Beta_i. The PosAng_e, Beta_e, and Size_e columns give these same quantities, but for another scan corresponding to occultation emersion. deg Beta_i Effective resolution achieved along immersion PA number=5 The PosAng_i column gives the position angle (in degrees) of scan in immersion occultation. The Beta_i column gives the effective resolution achieved along the position angle given by PosAng_i. The Size_i column gives the derived angular size of the whole source or an individual component along the position angle given by PosAng_i and with effective resolution given by Beta_i. The PosAng_e, Beta_e, and Size_e columns give these same quantities, but for another scan corresponding to occultation emersion. arcsec Size_i Derived angular size of source or comp in immersion number=5 The PosAng_i column gives the position angle (in degrees) of scan in immersion occultation. The Beta_i column gives the effective resolution achieved along the position angle given by PosAng_i. The Size_i column gives the derived angular size of the whole source or an individual component along the position angle given by PosAng_i and with effective resolution given by Beta_i. The PosAng_e, Beta_e, and Size_e columns give these same quantities, but for another scan corresponding to occultation emersion. arcsec PosAng_e Position angle of scan in emersion occultation number=5 The PosAng_i column gives the position angle (in degrees) of scan in immersion occultation. The Beta_i column gives the effective resolution achieved along the position angle given by PosAng_i. The Size_i column gives the derived angular size of the whole source or an individual component along the position angle given by PosAng_i and with effective resolution given by Beta_i. The PosAng_e, Beta_e, and Size_e columns give these same quantities, but for another scan corresponding to occultation emersion. deg Beta_e Effective resolution achieved along emersion PA number=5 The PosAng_i column gives the position angle (in degrees) of scan in immersion occultation. The Beta_i column gives the effective resolution achieved along the position angle given by PosAng_i. The Size_i column gives the derived angular size of the whole source or an individual component along the position angle given by PosAng_i and with effective resolution given by Beta_i. The PosAng_e, Beta_e, and Size_e columns give these same quantities, but for another scan corresponding to occultation emersion. arcsec Size_e Derived angular size of source or comp in emersion number=5 The PosAng_i column gives the position angle (in degrees) of scan in immersion occultation. The Beta_i column gives the effective resolution achieved along the position angle given by PosAng_i. The Size_i column gives the derived angular size of the whole source or an individual component along the position angle given by PosAng_i and with effective resolution given by Beta_i. The PosAng_e, Beta_e, and Size_e columns give these same quantities, but for another scan corresponding to occultation emersion. arcsec LAS Largest angular size number=6 These columns give information on the overall radio structure of the source. The largest angular size is given (in arcseconds) in the last column; the corresponding position angle of the major axis (in degrees) is given in the 'Maj_PA' column; and the source structure is described in the 'struct' column as follows: D double PD probable double U unresolved T triple HT head-tail Ext indication of extended feature CH core-halo Cx complex Br emission bridge with percentage of flux contained ? indicated structure is not very certain arcsec Maj_PA Position angle of the major source axis number=6 These columns give information on the overall radio structure of the source. The largest angular size is given (in arcseconds) in the last column; the corresponding position angle of the major axis (in degrees) is given in the 'Maj_PA' column; and the source structure is described in the 'struct' column as follows: D double PD probable double U unresolved T triple HT head-tail Ext indication of extended feature CH core-halo Cx complex Br emission bridge with percentage of flux contained ? indicated structure is not very certain deg struct Source structure description number=6 These columns give information on the overall radio structure of the source. The largest angular size is given (in arcseconds) in the last column; the corresponding position angle of the major axis (in degrees) is given in the 'Maj_PA' column; and the source structure is described in the 'struct' column as follows: D double PD probable double U unresolved T triple HT head-tail Ext indication of extended feature CH core-halo Cx complex Br emission bridge with percentage of flux contained ? indicated structure is not very certain --- oRA Radio minus optical offset in RA number=7 These columns give the radio-minus-optical offset in right ascension and declination, in arcseconds. The optical positions are accurate to ~0.5". arcsec oDE Radio minus optical offset in Dec number=7 These columns give the radio-minus-optical offset in right ascension and declination, in arcseconds. The optical positions are accurate to ~0.5". arcsec Pmag Photographic magnitude of optical object number=8 This column gives the photographic magnitude of the optical object, estimated from PSS prints based on the calibrations of King and Raff (1977). The uncertainties are generally ~+/- 1 magnitude. mag ID Optical object in field number=9 This column gives the optical object in the field or an abbreviation describing the nature of the field. The following abbreviations are used: EF empty field BSO blue stellar object RSO red stellar object NSO neutral stellar object QSO quasi-stellar object G galaxy BG blue galaxy RG red galaxy CWD crowed field INP identification not possible for technical reasons ID attached to the abbreviation means positive or likely identification and '?' means identification given is uncertain. x) refer to references for published optical charts as follows: a) Hunstead & Jauncey 1970, MNRAS 149, 91. b) Wills & Wills 1979. (1979ApJS...41..689W) Lawrence et al.1986. (1986ApJS...61..105L) c) Bolton et al. 1981, AuJP 34, 445. (1981AuJPh..34..445B) d) Wills & Bolton 1969. (1969AuJPh..22..775W) e) Lawrence et al. 1986. (1986ApJS...61..105L) f) Bolton & Wall 1970, AuJP 23, 789. g) Kapahi et al. 1973. (1973AJ.....78..673K) --- |b| Galactic latitude of radio source (|b|) number=10 This column gives the absolute value of the galactic latitude, |b| of the radio source, in integer degrees. deg Oname Most common names of source number=1 The Name column gives the radio source name. The IAU designation is used throughout. The Oname (other name) column gives the most common name of the radio source from other catalogs, such as 4C, MG, PKS etc. Some corrections were made to the data in order that the source names were consistent between the two tables. --- Patricio Ortiz CDS 1999Mar30 UNKNOWN UNKNOWN "The catalogue was originally archived as A042 by H. Andernach (heinz@astro.ugto.mx) and the ADS documentation prepared in collaboration with Carolyn Stern Grant (stern@cfa.harvard.edu)." The following changes were made to tables 1 and 2, based on flux comparisons and comparisons with IAU names. Table 1: 1. changed 0408+169 to 0408+160 to accurately reflect position 2. changed 1313-006 to 1313-066 to accurately reflect position 3. changed dec from -171352.6 to -175352.6 for 1659-178 (texas position) 4. changed 1923-187 to 1823-187 to accurately reflect position 5. changed the 327 flux for 1750-187 from 0.4 to 0.25 so that it would agree with the value in table 2 (and therefore alpha would be correct). Table 2: 1. changed 0031+041 to 0035+041 to agree with table 1 2. changed 0323+152 to 0324+153 to agree with table 1 3. changed 0324+153 to 0324+152 to agree with table 1 4. changed 0408+169 to 0408+160 to accurately reflect position 5. changed 0601+158 to 0601+185 to agree with table 1 6. changed 0743+161 to 0742+161 to agree with table 1 7. removed this line as it has no corresponding source in table 1 probably an incorrect combination of 0743+161 (now changed) and 0746+162: 0743+162 0.45 .04 0.53 .06 -0.11 8. changed 1105+037 to 1105+037a to agree with table 1 9. changed 1214-029 (flux=0.55) to 1214-029a to agree with table 1 10. changed 1214-029 (flux=0.45) to 1214-029b to agree with table 1 11. changed 1313-006 to 1313-066 to accurately reflect position 12. changed 2106-130 to 2106-130a to agree with table 1 --C. Stern Grant 16 Jun 1993 13. 1406-102 B 140663.00 0.05 -101157.9 1.0 0.35 was changed to: 1406-102 B 140646.30 0.05 -101157.9 1.0 0.35 |||| as a likely correction to the excessive value of 63 in the seconds of RA (the mean value is 45.48) P. Ortiz, 12 Apr 1999 J_A+AS_80_215.xml