VizieR

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

VizieR

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/661/A44
  A first eROSITA view of ultracool dwarfs (Stelzer+, 2022)
ReadMe+ftp
2022A&A...661A..44S
Similar Catalogs
Post annotation 		img(gal)
1.J/A+A/661/A44/table1(c)Basic X-ray parameters from the eRASS1 catalog for our sample of the UCDs and UCD candidates (96 rows)
2.J/A+A/661/A44/table2Multi-wavelength properties of the UCDs and UCD candidates identified as bona-fide or plausible counterparts to an eRASS1 X-ray source (58 rows)

Simple ConstraintList Of Constraints
 
Query by Constraints constraints help applied on Columns (Output Order: + - )
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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)GaiaDR2  Gaia DR2 (Cat. I/345) designation (source_id) (meta.id;meta.main)
  (1)RAJ2000 deg (i) Right ascension of the boresight corrected eRASS1 positions (J2000) (ra_corr) (pos.eq.ra;meta.main)
  (1)DEJ2000 deg (i) Declination of the boresight corrected eRASS1 positions (J2000) (dec_corr) (pos.eq.dec;meta.main)
  (1)ePos arcsec Error on the eRASS1 positions (delta_radec) (stat.error)
  (1)SepOX arcsec Separation between the proper motion corrected optical positions and the X-ray positions (sep_ox) (pos.angDistance)
  (1)Rate ct/s Broad band (0.2-5.0 keV) source count rates (rate) (phot.count;em.X-ray)
  (1)e_Rate ct/s Error on the broad band (0.2-5.0keV) source count rates (err_rate) (stat.error)
  (1)DetML  Maximum likelihood for the X-ray detection in the broad band (col. DETLIKE0 from eRASS1cat) (detml) (stat.likelihood)
  (1)funiqucd (char) Flag for UCDs being the unique Gaia counterparts to the eRASS1 source (flaguniqucd) (meta.code)
  (1)fcpm (char) Flag for common proper motion pairs involving an UCD or UCD candidate (flag_cpm) (meta.code)

ALL cols		    
 (i)indexed column
  (1)fxdata (char) Flag for objects with archival X-ray detections (flag_xdata) (meta.code)
  (1)fbfucd (char) Flag for UCDs considered as 'bona-fide' counterparts to the eRASS1 sources (flagbonafide_ucd) (meta.code)
  (1)fplucd (char) Flag for UCDs considered as 'plausible' counterparts to the eRASS1 sources (flagplausibleucd) (meta.code)
  (1)iCat (char) Original input catalog (iCat) (Note 1)   (meta.bib)
  (1)Simbad (char) ask the Simbad data-base about this object (meta.ref.url)
  (2)Gmag mag G-band magnitude from the Gaia DR2 catalog (Gmag) (phot.mag;em.opt.V)
  (2)Jmag mag J-band magnitude from the 2MASS (Cat. II/246) catalog (Jmag) (phot.mag;em.IR.J)
  (2)W1mag mag (n) W1-band magnitude from the AllWISE (Cat. II/328) catalog (W1mag) (phot.mag;em.IR.3-4um)
  (2)SpTypeopt (char) Spectroscopic spectral type in visual bandpass (spt_opt) (Note 1)   (src.spType)
  (2)SpTypeph (char) Photometric spectral type from the G-J color index (spt_photo) (Note 2)   (src.spType)
  (2)Dist pc Distance from Bailer-Jones et al. (2018, Cat. I/347) (dist) (pos.distance)
  (2)e_Dist pc Lower error on the distance estimated by Bailer-Jones et al. (2018) (elo_dist) (stat.error)
  (2)E_Dist pc Upper error on the distance estimated by Bailer-Jones et al. (2018) (eup_dist) (stat.error;stat.max)
  (2)logLX [10-6W] log of Lx for the eROSITA band 1+2 (LogLx) (Note 3)   (phys.luminosity;em.X-ray)
  (2)logLX/Lbol [-] log of the ratio between the eROSITA LX and Lbol from Filippazzo et al. (2015ApJ...810..158F) (LogLxLbol) (phys.luminosity;arith.ratio)
  (2)fyoung (char) Flag for young star (flag_young) (Note 4)   (meta.code)
  (2)ryoung (char) Reference on young star (ref_young) (meta.bib)
  (2)fbinary (char) Flag for binary system (flag_binary) (Note 4)   (meta.code)
  (2)rbinary (char) Reference on binary system (ref_binary) (meta.bib)

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