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J/AJ/155/257
  Photometry & RV follow-up observations of K2-18 (Sarkis+, 2018)
timeSerie
Post annotation
  
1.J/AJ/155/257/table4WiFSIP photometry in the Johnson B filter [timeSerie](Light curve)
timeSerie
(27 rows)
2.J/AJ/155/257/table5WiFSIP photometry in the Cousins R filter [timeSerie](Light curve)
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(27 rows)
3.J/AJ/155/257/table6Radial velocities obtained with CARMENES and the spectroscopic activity indicators [timeSerie](Velocity curve)
timeSerie
(58 rows)

 
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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)
   (ALL)BJD d [7812.628906/7921.402344] Barycentric Julian Date (BJD-2450000) (time.epoch)
  (1)DBmag mag [0.9855/1.0153] Differential Johnson B band magnitude (phot.mag;em.opt.B;arith.diff)
  (1)e_DBmag mag [0.0019/0.0062] Uncertainty in DBmag (stat.error;phot.mag)
  (2)DRmag mag [0.9904/1.0115] Differential Cousins R band magnitude (phot.mag;em.opt.R;arith.diff)
  (2)e_DRmag mag [0.0018/0.0057] Uncertainty in DRmag (stat.error;phot.mag)
  (3)RV m/s [-13.49/9.82] Radial velocity (phys.veloc;pos.heliocentric)
  (3)e_RV m/s [1.61/11.91] Uncertainty in RV (stat.error)
  (3)RV(blue) m/s [-30.21/16.88] The blue order radial velocity (Note 1)   (phys.veloc;pos.heliocentric)
  (3)e_RV(blue) m/s [2.08/15.66] Uncertainty in RV(blue) (Note 1)   (stat.error)
  (3)RV(red) m/s [-14.18/12.35] The red order radial velocity (Note 1)   (phys.veloc;pos.heliocentric)

ALL cols
    
 (i)indexed column
  (3)e_RV(red) m/s [1.69/10.86] Uncertainty in RV(red) (Note 1)   (stat.error)
  (3)CaII(IRT1)   [0.567/0.6074] The Ca II H and K, calcium infrared triplet activity indicator (8498.02Å) (dex) (phot.flux;arith.ratio)
  (3)e_CaII(IRT1)   [0.0021/0.0105] Uncertainty in CaII(IRT1) (dex) (stat.error)
  (3)CaII(IRT2)   [0.4228/0.474] The Ca II H and K, calcium infrared triplet activity indicator (8542.09Å) (dex) (phot.flux;arith.ratio)
  (3)e_CaII(IRT2)   [0.0022/0.0132] Uncertainty in CaII(IRT2) (dex) (stat.error)
  (3)CaII(IRT3)   [0.4004/0.4449] The Ca II H and K, calcium infrared triplet activity indicator (8662.14Å) (dex) (phot.flux;arith.ratio)
  (3)e_CaII(IRT3)   [0.002/0.0123] Uncertainty in CaII(IRT3) (dex) (stat.error)
  (3)Halpha   [0.93/0.9715] Hα activity index (6562.81Å) (dex) (spect.index;em.line.Halpha)
  (3)e_Halpha   [0.0021/0.0121] Uncertainty in Halpha (dex) (stat.error)

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