VizieR

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VizieR

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J/MNRAS/474/5008/spidxcat Radio spectral index 147-1400MHz (de Gasperin+, 2018)
*Spectral index catalogue (1396515 rows)
  recno=1152499
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ColumnValue  Explain   (UCD)
_RAJ200006 21 05.81124216 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEJ2000-19 02 03.8830164 "d:m:s" Declination (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_RAB195006 18 55.01124542 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEB1950-19 00 36.5636775 "d:m:s" Declination (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_Glon226.91606402898 deg Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon)
_Glat-15.05635803136 deg Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat)
1152499recno 1152499  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

RAJ2000095.274213509 deg (i) Right Ascension (J2000) (weighted average of NVSS and TGSS detections for Scode=SMCI) (pos.eq.ra;meta.main)
DEJ2000-19.034411949 deg (i) Declination (J2000) (weighted average (pos.eq.dec;meta.main)
FtotNVSS 0.01 Jy NVSS 1.4GHz total flux (sum of detections fluxes for Scode=I, set to 0 for Scode=U) (phot.flux.density;em.radio.750-1500MHz)
e_FtotNVSS 0.001 Jy rms uncertainty on FtotNVSS (quadratic mean of detection errors for Scode=I, set to 0 for Scode=U) (stat.error)
FpeakNVSS 0.01 Jy/beam NVSS 1.4GHz peak flux (maximum of detections peak fluxes for Scode=I, set to 0 for Scode=U) (phot.flux.density;em.radio.750-1500MHz)
e_FpeakNVSS  Jy/beam rms uncertainty on FpeakNVSS (error relative to the maximum of detections peak fluxes for Scode=I, set to 0 for Scode=U) (stat.error)
rmsNVSS 0.000472 Jy/beam NVSS local rms noise (instr.det.noise)
FtotTGSS 0.20 Jy TGSS 147MHz total flux (sum of detections fluxes for Scode=I, set to 0 for Scode=L) (phot.flux.density;em.radio.100-200MHz)
e_FtotTGSS 0.011 Jy rms uncertainty on FtotTGSS (quadratic mean of detections error for Scode=I, set to 0 for Scode=L) (stat.error)
FpeakTGSS 0.14 Jy/beam TGSS 147MHz peak flux (maximum of detections peak fluxes for Scode=I, set to 0 for Scode=L) (phot.flux.density;em.radio.100-200MHz)
e_FpeakTGSS 0.007 Jy/beam rms uncertainty on FpeakTGSS (error relative to the maximum of detections peak fluxes for Scode=I, set to 0 for Scode=L) (stat.error)
rmsTGSS 0.006948 Jy/beam Local rms noise (instr.det.noise)
SpIndex-1.286006  Spectral index between 147MHz and 1.4GHz (spect.index;em.radio.100-200MHz)
e_SpIndex 0.039485  Spectral index error (set to 0 for Scode=LU) (stat.error)
s2n 26.03  Peak flux over Island rms (phot.flux;arith.ratio)
ScodeS   [SMCILU] Source code (Note 1)   (meta.code)
Nmatch1  Number of matched sources in the same island (meta.number)
NunmaNVSS 0  Number of NVSS unmatched sources in the same island (meta.number)
NunmaTGSS0  Number of TGSS unmatched sources in the same island (meta.number)
IslId1558973   [30/1855370] Island identification number (meta.id)
SourceId1152498   [0/1396514] Unique source identification number (meta.id;meta.main)
  
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