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File Summary: ---------------------------------------------------------------------------- File Name Lrecl Records Explanations ---------------------------------------------------------------------------- table3a.dat 133 9405 Texas Survey, -26 deg strip: [-357,-187] table3b.dat 133 8533 Texas Survey, -12 deg strip: [-186,-064] table3c.dat 133 8022 Texas Survey, -01 deg strip: [-063,+039] table3d.dat 133 7772 Texas Survey, +09 deg strip: [+040,+135] table3e.dat 133 7437 Texas Survey, +18 deg strip: [+136,+226] table3f.dat 133 6302 Texas Survey, +27 deg strip: [+227,+316] table3g.dat 133 6367 Texas Survey, +36 deg strip: [+317,+406] table3h.dat 133 5084 Texas Survey, +45 deg strip: [+407,+499] table3i.dat 133 4516 Texas Survey, +55 deg strip: [+500,+598] table3j.dat 133 3403 Texas Survey, +65 deg strip: [+599,+715] table4a.dat 133 2110 Simpler Models, -26 deg strip table4b.dat 133 2045 Simpler Models, -12 deg strip table4c.dat 133 1918 Simpler Models, -01 deg strip table4d.dat 133 1950 Simpler Models, +09 deg strip table4e.dat 133 1922 Simpler Models, +18 deg strip table4f.dat 133 1329 Simpler Models, +27 deg strip table4g.dat 133 1666 Simpler Models, +36 deg strip table4h.dat 133 1159 Simpler Models, +45 deg strip table4i.dat 133 962 Simpler Models, +55 deg strip table4j.dat 133 697 Simpler Models, +65 deg strip ---------------------------------------------------------------------------- Byte-by-byte Description of file: table3a.dat table3b.dat table3c.dat table3d.dat table3e.dat table3f.dat table3g.dat table3h.dat table3i.dat table3j.dat ---------------------------------------------------------------------------- Bytes Format Units Label Explanations ----------------------------------------------------------------------------- 1 1X --- --- Blank 2 A1 --- Aflg [ *] * means simpler model(s) exist 3- 11 A9 --- Source *Source name 12 1X --- --- Blank 13 A1 --- XPVRflg [ 123] # of subbeams outside the PVR 14 A1 --- Mflg [+CWN] goodness of model fit 15 A1 --- Eflg [+CWX] influence of environment 16 A1 --- Lflg [+CW] lobeshift probability 17 A1 --- LVflg [ 12] # of low-visibility subbeams 18- 19 2X --- --- blank 20- 21 I2 h RAh Right Ascension 1950 22 1X --- --- blank 23- 24 I2 min RAm Right Ascension 1950 25 1X --- --- blank 26- 31 F6.3 s RAs Right Ascension 1950 32 1X --- --- blank 33- 37 F5.3 s e_RA ]0,4[ Right Ascension error 38- 40 3X --- --- blank 41 A1 --- DE- Declination sign 42- 43 I2 deg DEd Declination 1950 44 1X --- --- blank 45- 46 I2 arcmin DEm Declination 1950 47 1X --- --- blank 48- 52 F5.2 arcsec DEs Declination 1950 53 1X --- --- blank 54- 58 F5.2 arcsec e_DE ]0,30[ Declination error 59 1X --- --- blank 60 A1 --- n_Flux [ X] X if flux <0.15 Jy 61 1X --- --- blank 62- 67 F6.3 Jy Flux ]0,80[ 365 MHz flux density 68 1X --- --- blank 69- 73 F5.3 Jy e_Flux ]0,40[ Internal rms flux error 74 1X --- --- blank 75 A1 --- SNflg [ YZ] signal-to-noise flag 76 1X --- --- blank 77- 80 F4.1 --- Spec []? spectral index 81 1X --- --- blank 82- 83 F2.1 --- e_Spec [0,1[? error in spectral index 84- 85 2X --- --- blank 86- 89 F4.1 --- Var []? chi-squared flux residual, 2 dof 90 A1 --- Vflg [ X] X means value of var is suspect 91 A1 --- Vstar [ *] * means source may be variable 92- 93 2X --- --- blank 94- 96 I3 arcsec Sep []? component separation in double model 97 1X --- --- [ (] field separator 98- 99 I2 arcsec e_Sep []? error in isep 100 1X --- --- [ )] field separator 101 1X --- --- blank 102-105 A4 --- ModStr *structure model type 106 1X --- --- [ (] field separator 107-108 I2 --- e_q []? 100xerror in asymmetry parameter q 109 1X --- --- [ )] field separator 110 1X --- --- blank 111-114 I4 deg Xi []? position angle of double 115 1X --- --- [ (] field separator 116-117 I2 deg e_Xi []? error in positin angle 118 1X --- --- [ )] field separator 119 1X --- --- blank 120 A1 --- RAOflg *[ *] RA overlap zone flag 121 A1 --- DEOflg *[ *] DE overlap zone flag 122 1X --- --- [ (] field separator 123-124 I2 --- KA2 []? second most likely RA lobe 125 1X --- --- [ ,] field separator 126-127 I2 --- KD2 []? second most likely Dec lobe 128 1X --- --- [ )] field separator 129 A1 --- RAOZ [ ABCDE] RA overlap zone 130 A1 --- DEOZ [ abcdefghijk] Dec overlap zone 131-133 A3 --- Strp Observation strip source line taken from ----------------------------------------------------------------------------- Notes on file: table3a.dat table3b.dat table3c.dat table3d.dat table3e.dat table3f.dat table3g.dat table3h.dat table3i.dat table3j.dat ---------------------------------------------------------------------------- Source: The name is constructed from the hours and minutes of right ascension, the sign of declination, and truncated tenths of degrees of declination: hhmmsddd. Because of a final position system adjustment, the source name may not agree with the position in the table, but should be used regardless. ModStr: Point model is ' P'; Double model is ' D', and asymmetric double is 'ADnn' where nn=100 x q, the asymmetry parameter. RAOflg: * means this is one of two versions of this catalog line, because the source was in an RA overlap zone. DEOflg: * means this is one of two versions of this catalog line, because the source was observed separately in two observation declination strips. ---------------------------------------------------------------------------- Byte-by-byte Description of file: table4a.dat table4b.dat table4c.dat table4d.dat table4e.dat table4f.dat table4g.dat table4h.dat table4i.dat table4j.dat ----------------------------------------------------------------------------- Bytes Format Units Label Explanations ---------------------------------------------------------------------------- 1- 2 2X --- --- Blank 3- 11 A9 --- Source *Source name 12 1X --- --- Blank 13 A1 --- XPVRflg [ 12] # of subbeams outside the PVR 14 A1 --- Mflg [+] goodness of model fit 15 A1 --- Eflg [+CWX] influence of environment 16 A1 --- Lflg [+CW] lobeshift probability 17 A1 --- LVflg [ 12] # of low-visibility subbeams 18- 19 2X --- --- blank 20- 21 I2 h RAh Right Ascension 1950 22 1X --- --- blank 23- 24 I2 min RAm Right Ascension 1950 25 1X --- --- blank 26- 31 F6.3 s RAs Right Ascension 1950 32 1X --- --- blank 33- 37 F5.3 s e_RA ]0,4[ Right Ascension error 38- 40 3X --- --- blank 41 A1 --- DE- Declination 1950 sign 42- 43 I2 deg DEd Declination 1950 44 1X --- --- blank 45- 46 I2 arcmin DEm Declination 1950 47 1X --- --- blank 48- 52 F5.2 arcsec DEs Declination 1950 53 1X --- --- blank 54- 58 F5.2 arcsec e_DE ]0,30[ Declination error 59 1X --- --- blank 60 A1 --- n_Flux [ X] X if flux <0.15 Jy 61 1X --- --- blank 62- 67 F6.3 Jy Flux ]0,80[ 365 MHz flux density 68 1X --- --- blank 69- 73 F5.3 Jy e_Flux ]0,40[ Internal rms flux error 74 1X --- --- blank 75 A1 --- SNflg [ YZ] signal-to-noise flag 76 1X --- --- blank 77- 80 F4.1 --- Spec []? spectral index 81 1X --- --- blank 82- 83 F2.1 --- e_Spec [0,1[ ? error in spectral index 84- 93 10X --- --- blank (Var,Vflg,Vstar in Table 3) 94- 96 I3 arcsec Sep []? component separation in double model 97-101 5X --- --- blank (e_Sep in Table 3) 102-105 A4 --- ModStr *structure model type 106-110 5X --- --- blank (e_q in Table 3) 111-114 I4 deg Xi []? position angle of double 115-128 14X --- --- blank (e_Xi,RAOFlg,DEOFlg,KA2,KD2 in Table 3) 129 A1 --- RAOZ [ ABCDE] RA overlap zone 130 A1 --- DEOZ [ ABCDEFGHIJK] DE overlap zone 131-133 A3 --- Strp Observation strip source line taken from ----------------------------------------------------------------------------- Notes on file: table4a.dat table4b.dat table4c.dat table4d.dat table4e.dat table4f.dat table4g.dat table4h.dat table4i.dat table4j.dat ----------------------------------------------------------------------------- Source: The name is that of the corresponding Survey source line in Table 3. ModStr: Point model is ' P'; Double model is ' D'; there are no AD models in the "Simpler models". --------------------------------------------------------------------------- ============================================================================ (End)
The basis for the Texas Survey flux densities is a slightly modified version
of the flux scale developed by Wills (1973, Ap.J. 180, 335), here referred
to as the "BW scale". The BW scale was recreated from basic flux data,
rereduced and modified to reflect an assumed frequency-independent secular
decrease of the flux density of Cas A of 0.8 % per year, rather than the
1.3 % oer year originally used Wills. The resultant scale (TXS for Texas
Survey) is about 2% below BW at 365 MHz. For comparison purposes, a reduction
was also done using the Cas A spectrum adopted by Baars et al. (1977),
here denoted "BA". At 365 MHz, the relationship between the three scales
is
S(TXS) = 0.9828S(BW) = 0.9607S(BA)
Evaluation of the TXS flux scale at 408 MHz showns it to be identical to the
absolute flux scale defined by Wyllie (1969a, MNRAS, 142, 229)
(1969b, PASAu, 1, 234) and used for the Molonglo 408 MHz data.