CDROM/APJS/V90/P179 Source Catalog for PMN Tropical Survey (Griffith+ 1994) ================================================================================ The Parkes-MIT-NRAO (PMN) Surveys. III. Source Catalog for the Tropical Survey (-29 deg < Dec. < -9.5 deg) Mark R. Griffith, Alan E. Wright, B. F. Burke & R. D. Ekers <1994, ApJS, 90, 179> =1994ApJS...90..179G ================================================================================ Abstract: We present a catalog of radio sources discovered at a frequency of 4850 MHz in the Tropical zone (-29 deg < Dec. < -9.5 deg ) of Parkes-MIT-NRAO (PMN) Surveys. The Tropical Survey covers 2.01 sr and contains 13,363 sources to a flux limit that is, typically, about 42 mJy but varies as a function of declination. The survey was made using the Parkes 64 m radio telescope with the NRAO multibeam receiver during 1990. This survey increases the number of known sources in the region surveyed by approximately a factor of 5. The data-taking and principal reduction methods used for the PMN Surveys have been extensively described in a previous paper (Griffith & Wright 1993). In this paper, we describe the specific details of the tropical survey and we list the sources for the tropical survey. Later papers in the series will list objects for other survey zones, describe images made from the data, and provide analysis of the data. Keywords: catalogs -- radio continuum: general -- surveys References: Dickel, H. R., Lortet, M.-C., & de Boer, K. S. 1987, A&AS, 68, 75 Griffith, M. R., et al 1991, Proc. Astr. Soc. Australia., 9, 243 Griffith, M. R. & Wright, A. E., 1993, AJ, 105, 1666 (Paper 1) Large, M. I., Mills, B., Little, A. G., Crawford, D. F., & Sutton, J. M. 1981, MNRAS, 194, 693 Wright, A. E., Griffith, M. R., Burke, B. F., & Ekers, R. D. 1994, ApJS, in press (Paper 2) Wright, A. E. & Otrupcek, R., eds.,1990, ATNF, "PKSCAT90 - the Southern Radio Database" (Available from R Otrupcek on request, in either printed or machine-readable form.) File Summary: -------------------------------------------------------------------------------- File Name Lrecl Records Explanations -------------------------------------------------------------------------------- table2.dat 96 13363 PMN catalog, B1950 coordinates -------------------------------------------------------------------------------- Byte-by-byte Description of file: table2.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1-14 A14 --- Name *J2000-derived source name 15- 1X --- --- Blank 16-17 I2 h RAh Right ascension (J2000) 18- 1X --- --- ':' separator 19-20 I2 min RAm R.A. 21- 1X --- --- ':' separator 22-25 F4.1 s RAs R.A. 26- 1X --- --- Blank 27 A1 --- DE- Sign of declination (J2000) 28-29 I2 deg DEd Declination 30- 1X --- --- ':' separator 31-32 I2 arcmin DEm Dec. 33- 1X --- --- ':' separator 34-35 I2 arcsec DEs Dec. 36-43 I8 mJy Flux *4850 MHz flux density 44-47 I4 mJy e_Flux *Estimated standard error in Flux 48-55 I8 mJy Gflux *[]? General-width flux 56-59 I4 mJy e_Gflux []? Estimated standard error in Gflux 60-64 F5.1 --- W1 *[]? Maximum source half-power width 65-69 F5.1 --- W2 *[]? Minimum source half-power width 70-76 F7.1 deg PA *[]? Position angle of source max. dimension 77-81 F5.1 --- SI *[]? Spectral index 82-83 2X --- --- Blank 84 A1 --- D *[JN ] Session observed, June or November 85- 1X --- -- Blank 86 A1 --- X *[X ] source is probably extended 87- 1X --- -- Blank 88 A1 --- G *[G ] within 10 deg of Galactic Plane 89- 1X --- -- Blank 90 A1 --- Z *[Z ] weaker src. obs. within 6 deg of Parkes 91- 1X --- -- Blank 92 A1 --- S *[S ] src. lies within 5 deg of sun 93- 1X --- -- Blank 94 A1 --- P *[P ] src. within 2 arcmin of PKSCAT90 cat. 95- 1X --- -- Blank 96 A1 --- M *[M ] src. within 2 arcmin of Mononglo cat. -------------------------------------------------------------------------------- Notes for file: table2.dat -------------------------------------------------------------------------------- Name: The J2000-derived source name. The names in this list have been derived from their J2000 coordinates, in a manner similar to that used in the PKSCAT90 catalog (Wright & Otrupcek 1990) and following the IAU recommendations of Dickel, Lortet & de Boer (1987). The first three letters, "PMN", denote the Parkes-MIT-NRAO survey, and the fourth letter, "J", denotes that the equinox and equator is J2000. The rest of the name is derived from the hours and minutes of the right ascension and the degrees and minutes of the declination (both J2000). For a few objects, the name (but not the sources) is duplicated: in such cases we have appended an "a" or "b" to the name. Flux: 4850 MHz flux density in mJy derived from the Fixed-Width fit (see Paper 1). e_Flux: Estimated standard error of Flux field. A standard error >99 mJy was listed as 99 mJy because of space limitations: the accurate value can be obtained from the equation given in sec 4 of the printed paper. Gflux: General-width fluxes are only available for the stronger sources ( >~100mJy ). W1: Maximum source half-power width normalised by the telescope beamwidth, with standard error of about 0.2, particularly for the weaker objects. W2: Minimum source half-power width normalised by the telescope beamwidth, with standard error of about 0.2, particularly for the weaker objects. PA: Position angle of the source's maximum dimension measured in the standard sense of North through East SI: Spectral index between 2700MHz (from PKSCAT90) and the PMN 4850MHz measurements D: The session in which the source was observed. "J" indicates the June session and "N" the November session. X: An "X" indicates that the source is probably extended. This information is only available for sources whose Fixed-Width fit fluxes, before the application of the flux bias corrections (see Paper 1), were stronger than 100 mJy. G: A "G" indicates that the source lies within 10 deg of the Galactic plane. Z: A "Z" indicates a source which was observed within 6 deg of the Parkes telescope's zenith and has a flux < 60 mJy. Such objects may be affected by residual problems in baseline removal and the data may be of lower quality. S: An "S" indicates that the source lies within 5 deg of solar contamination from the telescope's sidelobes and the data listed may be of lower quality. P: A "P" indicates that this source lies within 2' of a source listed in the PKSCAT90 database and is probably the same object. M: An "M" indicates that this source lies within 2' of a source listed in the Molonglo 408 MHz catalog (Large et al. 1981) and is probably the same object. -------------------------------------------------------------------------------- ================================================================================ (End) Lee Brotzman [ADS] 15-Apr-1994