PKSCAT90 The Southern RadioSource Database Version V 1.01 Australia Telescope National Facility, CSIRO Introduction Presently (May, 1990) PKSCAT90 consists of radio and optical data for 8264 radio sources. It covers essentially all the sky south of declination +27 degrees but largely excludes the Galactic Plane and the Magellanic Cloud regions. The latter zones have been the subject of other, specialist surveys. A few data errors in Version 1.00 have been corrected in the present edition. History The original Parkes radio catalogue was compiled from major radio surveys with the Parkes radiotelescope at frequencies of 408 MHz and 2700 MHz This work spanned a period of nearly 20 years and was undertaken largely by John Bolton and his colleagues. Since then, improved positions, optical identifications and redshifts have been obtained for many of the sources in the Catalogue. Furthermore, flux densities at several frequencies have supplemented the original surveys so that the measurements now cover the frequency range 80 - 22,000 MHz. However coverage at the highest frequencies is still sparse. Important contributions to the usefulness of the catalogue have been radio data from the Molonglo 408 MHz survey and the 80 MHz Culgoora measurements of Slee et al. PKSCAT90 should thus be regarded as a compendium of radio and optical data about southern radiosources. However, at the moment, it contains only sources originally found in the Parkes 2700 MHz Survey (see e.g. Part 14, Bolton et al, 1979, Aust J Phys, Astrophys Suppl, No. 46 and references therein) The original radio survey data of the Catalogue and the optical identifications have been published in a series of papers in the Australian Journal of Physics (see above reference). The associated optical spectral data on which redshifts were obtained has also been published, mainly in Astrophysical Journal and Monthly Notices of the Royal Astronomical Society. The following figure and table are reproduced from Part 14 of the Survey. They provide information about the completeness levels of the Catalogue in various parts of the sky. However users should note that the sky zone between -4 and +4 degrees has been the subject of a re-survey and is now complete to 0.25 Jy. About PKSCAT90 The PKSCAT90 database is made available freely for astronomical research purposes. However we request that users acknowledge their use of the catalogue data in publications as: Parkes Catalogue, 1990, Australia Telescope National Facility Wright & Otrupcek, (Eds) The New Version Of The Catalogue This catalogue differs in several important ways from the older (VAX/VMS only) version (which we shall refer to as "PKSCAT85") in that: 1. It has a different and more compact structure than PKSCAT85 and thus takes up less disc space. 2. It contains J2000 (FK5) positions and names. This is the IAU-preferred system. Generally the B1950 data is for convenience only and is given to a limited precision of 1 arcsec. 3. Improved positions for many sources have been included. Following the J2000 position is an explicit upper limit to the positional accuracy in arcsecs. 5. The new catalogue contains 8400MHz fluxes from recent Parkes measurements of around 1100 of the stronger sources. 6. References to identifications and redshifts are available for some sources in the catalogue. The codes placed after the J2000 position can be used to refer to sources in a table at the end of this information. About Names In the past, Parkes source names have been given in a format similar to: 1934-638 Unfortunately this is inconsistent with the IAU recommendations as to nomenclature (see e.g. Dickel et al, 1987, A & A Suppl. 68, 75-80) since: (i) it doesn't specify the Equinox and Equator (e.g. B1950 or J2000) of the position from which the name is derived and (ii) decimal fractions of degrees are not permitted in the "declination-part" of the name However, because they are so widely used, we have kept the existing nomenclature for all "1950-type" names, but include a B in front of them. The J2000 names are given as: J1229+0203 where the letter signifies J2000 equinox and equator (FK5-type position), the next 4 digits are the hours and minutes of right ascension and the sign and final digits are the degrees and minutes of declination. Thus, the source 3C273 in the new system will be referred to as: PKSB1226+023 or PKSJ1229+0203 if the observatory designation is important or, more informally, B1226+023 or J1229+0203 The latter style of naming has been adopted for the catalogue software. For the Future In the future, the catalogue will be expanded to include extra information from: new radio surveys, new identifications, many more references, improved positions and variability of fluxes. Furthermore we propose to extend the coverage of the Catalogue northward of +27 degrees declination using data from the northern surveys so as eventually to produce an all-sky, "Master" radio catalogue. Most importantly, we would very much like to receive references to pre-print and published information which supersedes or augments data in the present catalogue. Please assist by sending such material to: Alan Wright & Robina Otrupcek, PKSCAT Project ATNF, Parkes P.O. Box 276 PARKES NSW 2870 Australia Alternatively we can be contacted by E-MAIL on: ROTRUPCE@ATNF.CSIRO.AU Finally, we are preparing a Radio Atlas of the southern sky using data from the PKSCAT90 database. This will be in a similar format to the optical, "Norton's" star atlas. Alan Wright & Robina Otrupcek 10 May 1990 Catalogue Format for PKSCAT90 FieldName Datatype NameB A10 B1950 source name Alias A7 Alias/other catalogue names RAB A10 Right Ascension(B1950.0) (HH MM SS.S) DECB A9 Declination(B1950.0) (sDD MM SS) Ident A4 Identification (see attached sheets) Mag A4 Magnitude Z A5 Redshift (z) or Year.Month for which an optical spectrum was obtained, but from which a definite redshift could not be determined (thus, 83.07 refers to 1983 July) Flux densities at frequency S80 A5 80 MHz S178 A5 178 MHz S408 A5 408 MHz S635 A5 635 MHz S1410 A5 1410 MHz S2700 A5 2700 MHz S5000 A5 5000 MHz S8400 A5 8400 MHz S22000 A5 22000 MHz RAJ A13 J2000 Right Ascension DECJ A13 J2000 Declination NameJ A10 J2000 Name Err A5 positional accuracy in arcsec. (to be read as "better than") RefID A20 reference code for dentification RefZ A20 reference code for redshift Identification or blank field classifications Beginning with this version of the catalogue, new identification and field classification codes have been used, mainly for the unidentified or "blank-field" sources. The following table lists both the new and the old codes. Identified Sources Code Description Old Code BLC BL Lacertae object BLC D Diffuse galaxy, bright galaxies in clusters D DB Double galaxy DB E Elliptical Galaxy E G Galaxy too faint to classify G HII HII region HII IRR Irregular object IRR N N galaxy, bright cored galaxy N PN Planetary Nebular PN Q Quasi-stellar object or Quasar (confirmed) Q QC Quasar with a continuous optical spectrum QC (similar to BLC) S Spiral galaxy S SB Barred Spiral galaxy SB Sc Spiral galaxy (type C) SC SNR SuperNova Remnant SNR S0 Spiral galaxy with ellipticity of zero S0 (nearly circular) * Stellar object of neutral colour IIIS in good positional agreement with the radio source NOTE: (a ? following any code specifies that that property is uncertain) Unidentified Sources Xg one or more galaxies in the area II covered by the position error of the source but no identification claimed Xs blank field: one or more stars of normal colour III in the error box Xsa blank field: obscured by absorption IIIA X blank field: no absorption apparent IIIB Xs+ blank field: crowded star field IIIC Xa blank field: heavily obscured. IV Codes And References For IDENTIFICATIONS In PKSCAT90 CODE REFERENCE YEAR JOURNAL VOL PAGE BCE65 Bolton,J.G., Clarke,Margaret.E and Ekers,R.D. 1965 Aust.J.Phys. 18 627 BS77b Bolton,J.G. and Savage,Ann 1977 Aust.J.Phys.Astrophys.Suppl.No. 44 21 BSW75 Bolton,J.G., Shimmins,A.J. and Wall,J.V. 1975 Aust.J.Ph ys.Astrophys Suppl.No. 34 1 BE66b Bolton,J.G. and Ekers,Jennifer 1966 Aust.J.Phys. 19 27 BCA73 Browne,I.W.A., Crowther,J.H. and Adgie,R.L. 1973 Nature 244 146 BM72 Browne,I.W.A. and McEwan,N.J. 1972 Nature,Physical Science 239 101 BSM68 Bolton,J.G., Shimmins,A.J. and Merkelijn,Jeannette K. 1968 Aust.J.Phys. 21 81 BTC81 Bolton,J.G., Trett,Jenny, Carignan,C and Binette,L. 1981 Aust.J.Phys. BM73 Browne,I.W.A. and McEwan,N.J. 1973 Mon.Not.R.Astr.Soc. 162 21p BS77a Bolton,J.G. and Savage,Ann 1977 Aust.J.Phys.Astrophys.Suppl.No. 41 25 BE66a Bolton,J.G. and Ekers,Jennifer 1966 Aust.J.Phys. 19 471 B70 Blake,G.M. 1970 Astrophys.Lett. 6 201 BE66c Bolton,J.G. and Ekers,Jennifer 1966 Aust.J.Phys. 19 713 BB74 Brandie,G.W. and Bridle,A.H. 1974 Astron.J. 79 903 BWS71 Bolton,J.G., Wall,J.V. and Shimmins,A.J. 1971 Aust.J.Phys. 24 889 BW70 Bolton,J.G. and Wall,J.V. 1970 Aust.J.Phys. 23 789 BS73 Bolton,J.G. and Shimmins,A.J. 1973 Aust.J.Phys.Astrophys.Suppl.No. 30 BE66d Bolton,J.G. and Ekers,Jennifer 1966 Aust.J.Phys. 19 559 BE67 Bolton,J.G. and Ekers,Jennifer 1967 Aust.J.Phys. 20 109 CBJ76 Condon,J.J., Balonek,T.J. and Jauncey,D.J. 1976 Astron.J. 81 913 CJW78 Condon,J.J., Jauncey,D.L. and Wright,A.E. 1978 Astron.J. 83 1036 CHJ77 Condon,J.J., Hicks,P.D. and Jauncey,D.L. 1977 Astron.J. 83 692 EKM75 Edwards,T., Kronberg,P.P and Menard, G. 1975 Astron. 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Shimmins,A.J. 1966 Aust.J.Phys. 19 375 M72 Merkelijn,Jeannette K. 1972 Aust.J.Phys. 25 451 PB72 Peterson,B.A. and Bolton,J.G. 1972 Astrophys.Lett. 10 105 PBS76 Peterson,B.A., Bolton,J.G. and Savage,Ann 1976 Astrophys .Lett. 17 137 PBS73 Peterson,B.A., Bolton,J.G. and Shimmins,A.J. 1973 Astrophys.Lett. 15 109 PB73 Peterson,B.A. and Bolton,J.G. 1973 Astrophys.Lett. 13 187 RP75 Riley,J.M. and Pooley,G.C. 1975 Mem.R.Astr.Soc. 80 105 SBW75 Shimmins,A.J., Bolton,J.G. and Wall,J.V. 1975 Aust.J.Phys.Astrophys Suppl.No. 34 63 SBW77 Savage,Ann, Bolton,J.G. and Wright,A.E. 1977 Mon.Not.R.Astr.Soc. 179 135 S76 Savage,Ann 1976 Mon.Not.R.Astro.Soc. 174 259 S78 Shaffer,D.B 1978 Astron.J. 83 209 SBW76 Savage,Ann, Bolton,J.G. and Wright,A.E. 1976 Mon.Not.R .Astr.Soc. 175 517 SBP71 Shimmins,A.J., Bolton,J.G., Peterson,B.A. and Wall,J.V. 1971 Astrophys.Lett. 8 139 SB79 Savage,Ann and Bolton,J.G. 1979 Aust.J.Phys.Astrophys.Suppl.No. 4 19 SSH75 Spinard,H., Smith,H.E., Hunstead,R. and Ryle,M. 1975 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