VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .

VizieR

  
J/A+A/700/A70
  4U 1538-52 cyclotron lines variability (Maniadakis+, 2025)
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2025A&A...700A..70M
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Objects
Post annotation 		  
1.J/A+A/700/A70/table1Observation log (4 rows)
2.J/A+A/700/A70/table2Best-fit PFS modeling parameters (4 rows)
3.J/A+A/700/A70/table3Phase-averaged spectral fit (NuSTAR/XMM) (2 rows)
4.J/A+A/700/A70/tablec1Phase-resolved spectroscopy of ObsID 304 (8 rows)
5.J/A+A/700/A70/tablec2Phase-resolved spectroscopy of ObsID 306-2 (8 rows)
6.J/A+A/700/A70/listList of files (72 rows)

Simple ConstraintList Of Constraints
 
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Column  Constraint Explain   (UCD)
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  (1+2+3)ObsID (char) Observation ID (meta.id;obs)
  (1)Exp ks Exposure time (time.duration;obs.exposure)
  (1)Cts 10+4ct Total number of counts in units of 1E+04 counts (phot.count;em.X-ray)
  (1)Flux 10-13W/m2Absorbed 4-50 keV flux in 10–10erg/cm2/s (phot.flux;em.X-ray)
  (1)Lum 10+36LsunBolometric luminosity (assumed D = 6.6 kpc) (phys.luminosity)
  (1)Freq mHz Pulse frequency (em.freq;src.var)
  (1)Tref s Reference time since 2010-01-01 UTC (time;arith.diff)
  (2)Ebump keV Energy of broad bump (em.energy)
  (2)e_Ebump keV 1-sigma uncertainty on Ebump (stat.error)
  (2)Sbump keV Sigma bump (stat.stdev)

ALL cols		    
 (i)indexed column
  (2)e_Sbump keV Uncertainty on Sbump (stat.error)
  (2)Abump  Amplitude of the bump (src.var.amplitude;spect.line)
  (2)e_Abump  1-sigma uncertainty on Abump (stat.error)
  (2)EFe keV (n) Iron line centroid (if present) (phys.energy;spect.line)
  (2)e_EFe keV (n) 1-sigma uncertainty on EFe (stat.error)
  (2+3+4+5)SFe keV (n) sigma of Fe line (stat.error)
  (2+3+4+5)e_SFe keV (n) Uncertainty on sigma of Fe line (stat.error)
  (2)AFe  (n) Amplitude of Fe line (src.var.amplitude;spect.line)
  (2)E_AFe  (n) Upper uncertainty on AFe (stat.error;stat.max)
  (2)e_AFe  (n) Lower uncertainty on AFe (stat.error)
  (2)Esplit keV Energy at which polynomial split occurs (em.energy)
  (2)npolLow  Polynomial order below Esplit (instr.order)
  (2)npolHigh  Polynomial order above Esplit (instr.order)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (2)chi2Low  Reduced chi2 for low-energy band (stat.fit.chi2)
  (2)dofLow  Degrees of freedom (low band) (stat.fit.dof)
  (2)chi2High  Reduced chi2 for high-energy band (stat.fit.chi2)
  (2)dofHigh  Degrees of freedom (high band) (stat.fit.dof)
  (3+4+5)Ecut keV Cutoff energy (em.energy)
  (3+4+5)e_Ecut keV Lower uncertainty on Ecut (stat.error)
  (3+4+5)E_Ecut keV Upper uncertainty on Ecut (stat.error;stat.max)
  (3+4+5)Efold keV Folding energy (em.energy)
  (3+4+5)e_Efold keV Lower uncertainty on Efold (stat.error)
  (3+4+5)E_Efold keV Upper uncertainty on Efold (stat.error;stat.max)
  (3+4+5)Gamma  Power-law photon index (meta.code;spect.index)
  (3+4+5)e_Gamma  Lower uncertainty on Gamma (stat.error)
  (3+4+5)E_Gamma  Upper uncertainty on Gamma (stat.error;stat.max)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (3+4+5)Nnewhcut  Normalization of the cutoff model (stat.fit.param)
  (3+4+5)e_Nnewhcut  Lower uncertainty on Nnewhcut (stat.error)
  (3+4+5)E_Nnewhcut  Upper uncertainty on Nnewhcut (stat.error;stat.max)
  (3+4+5)Nbbody 10-4 Blackbody normalization (in units of 1E-04) (stat.fit.param)
  (3+4+5)e_Nbbody 10-4 Lower uncertainty on Nbbody (stat.error)
  (3+4+5)E_Nbbody 10-4 Upper uncertainty on Nbbody (stat.error;stat.max)
  (3+4+5)Ecyc keV Cyclotron line energy (phys.energy;spect.line)
  (3+4+5)e_Ecyc keV Lower uncertainty on Ecyc (stat.error)
  (3+4+5)E_Ecyc keV Upper uncertainty on Ecyc (stat.error;stat.max)
  (3+4+5)Scyc keV Width of cyclotron line (spect.line.width)
  (3+4+5)e_Scyc keV Lower uncertainty on Scyc (stat.error)
  (3+4+5)E_Scyc keV Upper uncertainty on Scyc (stat.error;stat.max)
  (3+4)Dcyc  Depth of cyclotron absorption (phot.flux.density;arith.ratio)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (3+4)e_Dcyc  Lower uncertainty on Dcyc (stat.error)
  (3+4)E_Dcyc  Upper uncertainty on Dcyc (stat.error;stat.max)
  (3+4+5)E_SFe keV Upper uncertainty on SFe (stat.error;stat.max)
  (3+4+5)AFe 10-4 Fe line amplitude (in units of 1E-04) (src.var.amplitude;spect.line)
  (3+4+5)e_AFe 10-4 Lower uncertainty on AFe (stat.error)
  (3+4+5)E_AFe 10-4 Upper uncertainty on AFe (stat.error;stat.max)
  (3+4+5)Cfpmb  Cross-normalization FPMB (stat.fit.param)
  (3+4+5)e_Cfpmb  Lower uncertainty on Cfpmb (stat.error)
  (3+4+5)E_Cfpmb  Upper uncertainty on Cfpmb (stat.error;stat.max)
  (3)Flux 10-10 Absorbed 4-50 keV flux (phot.flux;em.X-ray)
  (3+4+5)Wstat  W-statistic (stat.fit.param)
  (3+4+5)dof  Degrees of freedom (stat.fit.dof)
  (4+5)Phase (char) Spin phase bin (time.phase)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (5)Tau  Optical depth (CompTT) (phys.absorption.opticalDepth)
  (5)e_Tau  Lower uncertainty on Tau (stat.error)
  (5)E_Tau  Upper uncertainty on Tau (stat.error;stat.max)
  (6)FileName (char) Name of the file (meta.id;meta.file)
  (6)Title (char) Title of the file (meta.title;meta.file)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
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