Access to Astronomical Catalogues

J/MNRAS/342/575     BeppoSAX HELLAS survey. VI.              (Ciliegi+, 2003)
The BeppoSAX High Energy Large Area Survey (HELLAS).
VI. The radio properties.
    Ciliegi P., Vignali C., Comastri A., Fiore F., La Franca F., Perola G.C.
   <Mon. Not. R. Astron. Soc. 342, 575 (2003)>
   =2003MNRAS.342..575C
ADC_Keywords: QSOs ; Radio sources ; X-ray sources

Mission_Name: BeppoSAX

Keywords: surveys - quasars: general - radio continuum: galaxies


Abstract:
    We present results of a complete radio follow-up obtained with the VLA
    and ATCA radio telescopes down to a 6-cm flux limit of about 0.3 mJy
    (3σ) of all the 147 X-ray sources detected in the BeppoSAX
    HELLAS survey. We found 53 X-ray/radio likely associations,
    corresponding to about one-third of the X-ray sample. Using the
    two-point spectral index αro=0.35 we divided all the HELLAS
    X-ray sources into radio-quiet and radio-loud. We have 26 sources
    classified as radio-loud objects, corresponding to 18 per cent of the
    HELLAS sample. In agreement with previous results, the identified
    radio-loud sources are associated mainly with Type 1 active galactic
    nuclei (AGNs) with L5-10kev≳1044erg/s, while all the identified
    Type 2 AGNs and emission-line galaxies are radio-quiet objects with
    L5-10kev≲1044erg/s.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table1.dat       165      147   X-ray, optical and radio properties of the
                             HELLAS sample


See also:
     J/MNRAS/327/771 : BeppoSAX HELLAS survey. II. (Fiore+, 2001)
     J/A+A/370/900   : BeppoSAX HELLAS survey. IV (Vignali+, 2001)
     J/ApJ/570/100   : BeppoSAX HELLAS survey. V. (La Franca+, 2002)
     J/A+A/409/79    : HELLAS2XMM survey. IV. (Fiore+, 2003)
     http://argos.mporzio.astro.it/hellas/ :
                          The High Energy Large Area Survey (HELLAS) Home Page


Byte-by-byte Description of file: table1.dat

   Bytes Format Units     Label     Explanations

   1-  2  I2    h         RAh       BepposSAX right ascension (J2000)
   4-  5  I2    min       RAm       BepposSAX right ascension (J2000)
   7- 10  F4.1  s         RAs       BepposSAX right ascension (J2000)
      12  A1    ---       DE-       BepposSAX declination sign (J2000)
  13- 14  I2    deg       DEd       BepposSAX declination (J2000)
  16- 17  I2    arcmin    DEm       BepposSAX declination (J2000)
  19- 20  I2    arcsec    DEs       BepposSAX declination (J2000)
  22- 25  F4.1  arcmin    OffX      Offset in the BeppoSAX field
  27- 31  F5.2  10-16W/m2 FX        5-10keV X-ray flux (in 10-13erg/cm2/s)
      33  A1    ---       l_Rmag    Limit flag on Rmag
  34- 38  F5.2  mag       Rmag      ? R-band magnitude, from La Franca et al.,
                                       Cat. J/ApJ/570/100, if not otherwise
                                       specified
      39  A1    ---       r_Rmag    [alu] Reference for Rmag (1)
      41  I1    ---       SpId      [0/6]? Spectroscopic identification (2)
      42  A1    ---       r_SpId    [l] l: SpId from Lehmann et al.,
                                            2000A&A...354...35L
  44- 48  F5.3  ---       z         ? Redshift from La Franca et al.,
                                       Cat. J/ApJ/570/100
      49  A1    ---       n_z       [l] l: Redshift from Lehmann et al.,
                                            2000A&A...354...35L
      50  A1    ---      l_F3.6GHz  Limit flag on F3.6GHz
  51- 56  F6.2  mJy       F3.6GHz   ? Flux density at 3.6GHz
  58- 61  F4.2  mJy      e_F3.6GHz  ? rms uncertainty on F3.6GHz
      62  A1    ---      n_F3.6GHz  [n] Note on F3.6GHz
      64  A1    ---       l_F5GHz   Limit flag on F5GHz
  65- 71  F7.2  mJy       F5GHz     ? Flux density at 5GHz (6cm)
                                       from NVSS, version 2.17
  73- 78  F6.2  mJy       e_F5GHz   ? rms uncertainty on F5GHz
      79  A1    ---       n_F5GHz   [n] n: not from NVSS, version 2.17
      81  A1    ---      l_F1.4GHz  Limit flag on F1.4GHz
  82- 88  F7.2  mJy       F1.4GHz   ? Flux density at 1.4GHz (20cm),
                                       from NVSS, version 2.17
  90- 94  F5.2  mJy      e_F1.4GHz  ? rms uncertainty on F1.4GHz
      95  A1    ---      n_F1.4GHz  [n] n: not from NVSS, version 2.17
      97  A1    ---     l_Sp-Index  Limit flag on Sp-Index
  98-102  F5.2  ---       Sp-Index  ? Radio spectral index calculated using the
                                      available frequencies (mainly 6 and 20cm)
 104-105  I2    h         RARh      ? Radio right ascension (J2000)
 107-108  I2    min       RARm      ? Radio right ascension (J2000)
 110-114  F5.2  s         RARs      ? Radio right ascension (J2000)
     116  A1    ---       DER-      ? Radio declination sign (J2000)
 117-118  I2    deg       DERd      ? Radio declination (J2000)
 120-121  I2    arcmin    DERm      ? Radio declination (J2000)
 123-127  F5.2  arcsec    DERs      ? Radio declination (J2000)
 129-133  F5.1  arcsec    DXR       ? Distance between X-ray and radio positions
 135-139  F5.2  10-2      PXR       ? Probability of a random association
 142-144  F3.1  arcsec    DRO       ? Distance between radio and optical
                                       positions
 146-151  F6.2  10-6      PRO       ? Probability of a random association
     153  A1    ---      l_alphaRO  ? Limit flag on alphaRO
 154-158  F5.2  ---       alphaRO   ? Two-point radio-to-optical
                                       spectral index (3)
     160  A1    ---      l_alphaOX  ? Limit flag on alphaOX
 161-165  F5.2  ---       alphaOX   ? Two-point optical-to-X-ray
                                       spectral index (3)

Note (1): References for R magnitude as follows:
      a = Magnitude from the APM (Cat. I/267) catalogue
      l = Magnitude from Lehmann et al., 2000A&A...354...35L
      u = Magnitude from the USNO (Cat. I/252) catalogue
Note (2): Spectroscopic identification as follows:
      1 = Type 1 AGN
      2 = Type 2 AGN
      3 = BL Lac
      4 = Cluster
      5 = ELG
      6 = Radio galaxy
Note (3): Definitions of the two-point spectral indices:
      alphaRO = log(F5GHz/F25000)/5.38
      alphaOX = log(F2500/F2keV)/2.065
      where F5GHz is the radio flux at 6cm,
      F2500 the optical flux at 2500Å and
      F2keV the monochromatic X-ray flux at 2keV.


History:
    From electronic version of the journal

References:
  Fiore et al.,     Paper I        1999MNRAS.306L..55F
  Fiore et al.,     Paper II       2001MNRAS.327..771F, Cat. J/MNRAS/327/771
  Comastri et al.,  Paper III      2001MNRAS.327..781C
  Vignali et al.,   Paper IV       2001A&A...370..900V, Cat. J/A+A/370/900
  La Franca et al., Paper V        2002ApJ...570..100L, Cat. J/ApJ/570/100
(End)                         James Marcout, Patricia Bauer [CDS]    11-Sep-2003