VIII/69A The WISH catalogue at 352 MHz (de Breuck+ 2002)
The Westerbork in the Southern Hemisphere 9WISH) Survey De Breuck C., Tang Y., de Bruyn A.G., Rottgering H., van Breugel W. <Astron. Astrophys. 394, 59 (2002)> =2002A&A...394...59D
ADC_Keywords: Radio sources ; Surveys Keywords: surveys - radio continuum: general - radio continuum: galaxies - galaxies: active Description: The Westerbork In the Southern Hemishpere (WISH) is a low-frequency (352MHz) radio survey that covers most of the sky between -25 and -15 degrees (1.60sr) at a wavelength of 92cm to a limiting flux density of approximately 18mJy (5sigma). Due to the very low elevation of the observations, the survey has a much lower resolution in declination than in right ascension (54"x54"cosecδ). A correlation with the 1.4GHz NVSS (VIII/65) shows that the positional accuracy is less constrained in declination than in right ascension, but there is no significant systematic error. The correlation with the NVSS was also used to construct a sample of faint Ultra Steep Spectrum sources (file uss.dat, table 2 of the paper). This sample is aimed at increasing the number of known high redshift radio galaxies to allow detailed follow-up studies of these massive galaxies and their environments in the early Universe. WISH is a collaboration between the Netherlands Foundation for Research in Astronomy (NFRA/ASTRON) and the Leiden Observatory. Carlos De Breuck, Yuan Tang, Ger de Bruyn, Huub Rottgering, Wil van Breugel, and Roeland Rengelink. For more information, see the WENSS home page at http://www.strw.leidenuniv.nl/wenss/ or contact File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file wish11.dat 114 90357 The WISH (v1.1) Catalogue uss.dat 120 154 Ultra Steep Spectrum sources (table2 of paper)
See also: http://www.strw.leidenuniv.nl/wenss/ : WENSS and WISH home page VIII/62 : The Westerbork Northern Sky Survey (Leiden, 1998) VIII/65 : The NRAO VLA Sky Survey (NVSS) (Condon+ 1998) Byte-by-byte Description of file: wish11.dat
Bytes Format Units Label Explanations
1- 3 A3 --- --- [WNB] 4- 15 A12 --- WNB Source name based on B1950 (1) 16 A1 --- m_WNB Multiplicity on WNB name (1) 18- 19 I2 h RA1950h Right Ascension B1950 (hours) 21- 22 I2 min RA1950m Right Ascension B1950 (minutes) 24- 28 F5.2 s RA1950s [0,60] Right Ascension B1950 (seconds) 30 A1 --- DE1950- Declination B1950 (sign) 31- 32 I2 deg DE1950d Declination B1950 (degrees) 34- 35 I2 arcmin DE1950m Declination B1950 (minutes) 37- 40 F4.1 arcsec DE1950s [0,60] Declination B1950 (seconds) 43- 44 I2 h RAh Right Ascension J2000 (hours) 46- 47 I2 min RAm Right Ascension J2000 (minutes) 49- 53 F5.2 s RAs [0,60] Right Ascension J2000 (seconds) 55 A1 --- DE- Declination J2000 (sign) 56- 57 I2 deg DEd Declination J2000 (degrees) 59- 60 I2 arcmin DEm Declination J2000 (minutes) 62- 65 F4.1 arcsec DEs [0,60] Declination J2000 (seconds) 68 A1 --- type [SCME] Source type (2) 70 A1 --- f_WNB [*] problems in fitting the source. (3) 73- 78 I6 mJy S The peak flux density at 352MHz in mJy/beam. 81- 86 I6 mJy SI The integrated flux density at 352MHz in mJy. 88- 91 I4 arcsec bMax The major axis 93- 95 I3 arcsec bMin The minor axis 97- 99 I3 deg PA The position angle 101-104 F4.1 mJy Nse the local rms-noise level in mJy/beam 106-114 A9 --- Frame The frame from which the source was obtained
Note (1): some sources are listed twice, if they have been observed in different fields. The double entries provide variability information. Some double entries in the same field are however due to problems in the source fitting algorithm, and are marked with a '*' in the Flags column (see column f_WNB). Note (2): the type is: S = Single component source. M = Multicomponent source. C = Component of a multicomponent source. E = Extended source (more than four components). Note (3): in case of problems in fitting the source, the source parameters were obtained using 'aperture' integration.
Byte-by-byte Description of file: uss.dat
Bytes Format Units Label Explanations
1- 4 A4 --- --- [WN J] 5- 13 A9 --- WNJ Name of the source, based on J2000 position 15- 18 I4 mJy S352MHz 352 MHz flux density 20- 22 I3 mJy e_S352MHz Uncertainty in 352 MHz flux density 24- 28 F5.1 mJy S1400MHz 1400 MHz flux density 30- 33 F4.1 mJy e_S1400MHz Uncertainty in 1400 MHz flux density 35- 39 F5.2 --- Sp-Index Spectral index 352-1400 41- 44 F4.2 --- e_Sp-Index Error in spectral index 352-1400 46- 47 I2 h RAh Right ascension (J2000.0) 49- 50 I2 min RAm Right ascension (J2000.0) 52- 56 F5.2 s RAs Right ascension (J2000.0) 58 A1 --- DE- Declination sign 59- 60 I2 deg DEd Declination (J2000.0) 62- 63 I2 arcmin DEm Declination (J2000.0) 65- 68 F4.1 arcsec DEs Declination (J2000.0) 70- 75 F6.4 --- z ? Redshift 77- 81 A5 --- ID Identification of filter or survey (1) 83-120 A38 --- Ref Reference
Note (1): For the ID, we provide either the name of the large sky survey, or the filter of literature observations.
History: * 16-Dec-2002: Prepared by Carlos De Breuck [Leiden Obs.] * 14-May-2004: the column m_WNB was added to distinguish between the sources sharing the same name. Four designations which were in error were corrected: WNB0855.0-2103 (was WNB 0855-21033) WNB1440.4-1939 (was WNB 1440-19395) WNB1621.2-2427 (was WNB 1621-24278) WNB2139.6-1208 (was WNB 2139-12084)
(End) Carlos De Breuck [Leiden Obs.], Francois Ochsenbein [CDS] 14-May-2004
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