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Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
Target Name (resolved by Sesame) or Position:
Target dimension:
NB: The epoch used for the query is the original epoch of the table(s)Radius Box size

  
J/A+A/297/391
  T Tauri stars ROSAT survey (Neuhaeuser+, 1995)
Post annotation
img(gal)
1.J/A+A/297/391/table1(c)Sample of T Tauri stars (TTS) studied (153 rows)
2.J/A+A/297/391/table2(c)ROSAT ALL Sky Survey (RASS) data for TTS above RASS detection limit (56 rows)
3.J/A+A/297/391/table3Spectral fit results for detected TTS (60 rows)
4.J/A+A/297/391/table4Upper limits for TTS below RASS limit (111 rows)
5.J/A+A/297/391/table5Statistical significance for correlations (16 rows)
6.J/A+A/297/391/table6Statistical significance for classical T Tauri stars (CTTS) and weak-line T Tauri stars (WTTS) being different (19 rows)
7.J/A+A/297/391/tablea1Non-X-ray data for TTS studied (188 rows)
8.J/A+A/297/391/refsReferences quoted in table1 and tablea1 (95 rows)

 
Query by Constraints constraints help applied on Columns (Output Order: + - )
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Column  Constraint Explain   (UCD)
  (1+2)DEJ2000 "d:m:s" (i) Declination J2000.0 (optical position) (pos.eq.dec;meta.main)
  (1)HBC  (n) []? HBC number V/73 (Herbig & Bell 1988) (meta.id)
  (1+2+3+4+7)Name (char) Name (meta.id;meta.main)
  (1)n_Name (char) [abc] Note on name (Note 1)   (meta.note)
  (1)n_RASS (char) 'ul' for RASS non-detections (meta.note)
  (1+2)RAJ2000 "h:m:s" (i) Right ascension J2000.0 (optical position) (pos.eq.ra;meta.main)
  (1)RASS  (n) []? Maximum likelihood for existence for RASS detected objects (stat.fit.param)
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  (1)r_Name (char) References (detailed in refs.dat) (meta.ref)
  (1)r_pm (char) References regarding proper motion (meta.ref)
  (1)r_RV  (n) []? References regarding radial velocity (meta.ref)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)Type (char) Type of the star (Note 2)   (src.class)
  (1)u_RASS (char) colon indicates source confusion (meta.code.error)
  (2+4)Dist arcsec Distance between X-ray and optical positions (pos.angDistance)
  (2)e_HR1  rms uncertainty on HR1 (stat.error)
  (2)e_HR2  rms uncertainty on HR2 (stat.error)
  (2)e_Xcount ct rms uncertainty on Xcount (stat.error)
  (2+4)Exp s RASS exposition time (time.duration;obs.exposure)
  (2)HR1   [-1/1] Hardness ratio 1 (Note 1)   (phot.flux;arith.ratio)
  (2)HR2   [-1/1] Hardness ratio 2 (Note 1)   (phot.flux;arith.ratio)
  (2)n_Dist (char) [:] A colon indicates X-ray sources that appear to be extended (meta.note)
  (2+4)Xcount ct Background subtracted X-ray counts (for multiples and source confusion cases, we list the combined number of counts). (phot.count;em.X-ray)
  (3+4)1/ECF 10+4J/ct/cm2Energy conversion factor (10-11/ECF) (arith.factor)
  (3)e(1/ECF)l 10+4J/ct/cm2Error in ECF (lower interval) (stat.error)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (3)e(1/ECF)u 10+4J/ct/cm2Error in ECF (upper interval) (stat.error)
  (3)e(Fs)l 10+4W/m2 (n) []? Error in Fs (lower interval) (stat.error)
  (3)e(Fs)u 10+4W/m2 (n) []? Error in Fs (upper interval) (stat.error)
  (3)e(k.Tx)l keV Error in k.Tx (lower interval) (stat.error)
  (3)e(k.Tx)u keV Error in k.Tx (upper interval) (stat.error)
  (3)e(logN(H))l  (n) []? Error in absorption (lower interval) (1) (Note 1)   (stat.error)
  (3)e(logN(H))u  (n) []? Error in absorption (upper interval) (1) (Note 1)   (stat.error)
  (3)e(Lx)l 10+23W Error in Lx (lower interval) (phys.luminosity;em.X-ray)
  (3)e(Lx)u 10+23W Error in Lx (upper interval) (phys.luminosity;em.X-ray)
  (3+4)Fs 10+4W/m2 (n) []? X-ray surface flux (Fs/10+7) (2) (Note 2)   (phot.flux;em.X-ray)
  (3)k.Tx keV X-ray emission energy (em.energy)
  (3)logN(H) [cm-2] Foreground hydrogen column density (phys.columnDensity)
  (3+4)Lx 10+23W Individually corrected X-ray luminosity (Lx/10+30) (Note 2)   (phys.luminosity;em.X-ray)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (3)u_logN(H) (char) ':' indicates cases, where fixed absorption did not yield good fits (see text in Sec. 3 for details) (meta.code.error)
  (4)l_Fs (char) [≤] limit flag on Fs (meta.code.error)
  (4)l_Lx (char) [≤>] limit flag on Lx (meta.code.error)
  (4)l_Xcount (char) [≤] limit flag on Xcount (meta.code.error)
  (4)n_1/ECF (char) [:] ':' average 1/ECF (Note 2)   (meta.note)
  (4)Proba % Probability of existence (stat.fit.goodness)
  (5)det  Number of pairs tested with detections (meta.number)
  (5)e_Slope  (n) []? rms uncertainty on Slope (stat.error)
  (5+6)n_Test (char) [*] Note on Test (Note 1)   (meta.note)
  (5)PrCox % Probability for the null hypothesis that the correlation tested is not present according to Cox's proportional hazard model (stat.fit.goodness)
  (5)PrKen % Probability for the null hypothesis that the correlation tested is not present according to the Generalized Kendall's τ test (stat.fit.goodness)
  (5)Prop (char) Test property (meta.note)
  (5)PrSpe % Probability for the null hypothesis that the correlation tested is not present according to the Spearman's ρ test (stat.fit.goodness)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (5)Slope  (n) []? Slope resulting from a linear regression for correlations accepted (stat.fit.param)
  (5+6)Test (char) Correlation tested (meta.id;meta.main)
  (5)ul  Upper limits detection (instr.sensitivity)
  (5)Unit (char) Sample unit (meta.unit)
  (6)CTTSmd  (n) []? CTTS median (meta.number)
  (6)CTTSmn  CTTS mean (src.sample;stat.mean)
  (6)CTTSs  Classical T Tauri stars (CTTS) sample size (meta.number)
  (6)CTTSsul  (n) []? Upper limits of the CTTS sample size (meta.number)
  (6)e_CTTSmn  rms uncertainty on CTTS mean (stat.error)
  (6)e_WTTSmn  rms uncertainty on WTTS mean (stat.error)
  (6)PrGWhy % Probability for the null hypothesis that CTTS and WTTS distributions are similar according to Gehan's generalized Wilcoxon test for hypergeometric variance (stat.fit.goodness)
  (6)PrGWpe % Probability for the null hypothesis that CTTS and WTTS distributions are similar according to Gehan's generalized Wilcoxon test for permutation variance (stat.fit.goodness)
  (6)PrLogRank  Probability for the null hypothesis that CTTS and WTTS distributions are similar according to the logrank test (c.f. Sec. 5.1.) (stat.fit.goodness)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (6)unit (char) Test item unit (meta.unit)
  (6)WTTSmd  WTTS median (src.sample;stat.median)
  (6)WTTSmn  WTTS mean (src.sample;stat.mean)
  (6)WTTSs  Weak-line T Tauri stars (WTTS) sample size (meta.number)
  (6)WTTSsul  (n) []? Upper limits of the WTTS sample size (meta.number)
  (7)Av mag (n) []? Visual extinction (phys.absorption)
  (7)EWHa (char) 0.1nm Halpha equivalent width (spect.line.eqWidth)
  (7)L solLum (n) []? Stellar bolometric luminosity (phys.luminosity)
  (7)l_log(t) (char) limit flag on age (meta.code.error)
  (7)log(t) [yr] (n) []? Stellar age (time.age)
  (7)log(Teff) [K] (n) []? Effective temperature (phys.temperature.effective)
  (7)l_vsini (char) limit flag on vsini (meta.code.error)
  (7)Mass solMass (n) []? Stellar mass (phys.mass)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (7)P d (n) []? Rotation period (time.period)
  (7)r_Av  (n) []? References for the extinction Av (meta.ref)
  (7)r_EWHa (char) Reference for Halpha equivalent width (meta.ref)
  (7)r_L  (n) []? References for the luminosity L (meta.ref)
  (7)r_log(t)  (n) []? References for the age t (meta.ref)
  (7)r_log(Teff)  (n) []? References for Teff (meta.ref)
  (7)r_Mass  (n) []? References for the mass M (meta.ref)
  (7)r_P (char) References for P and vsini (Note 1)   (meta.ref)
  (7)u_log(t) (char) uncertainty flag on age (meta.code.error)
  (7)u_Mass (char) uncertainty flag on M (meta.code.error)
  (7)vsini km/s (n) []? Projected surface velocity (phys.veloc.rotat)
  (8)RefNum  Reference number (meta.ref)
  (8)Text (char) Text of reference, including the bibcode (meta.bib.bibcode)

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