Access to Astronomical Catalogues

J/A+A/393/425       Spectral analysis of Lockman Hole        (Mainieri+, 2002)
XMM-Newton observation of the Lockman Hole. II. Spectral analysis.
    Mainieri V., Bergeron J., Hasinger G., Lehmann I., Rosati P., Schmidt M.,
    Szokoly G., Della Ceca R.
   <Astron. Astrophys. 393, 425 (2002)>
   =2002A&A...393..425M
ADC_Keywords: X-ray sources ; Photometry

Mission_Name: XMM

Keywords: surveys - galaxies: active - galaxies: quasars: general -
          cosmology: diffuse radiation - X-ray: galaxies - X-rays: general

Abstract:
    We present the results of the X-ray spectral analysis of the first
    deep X-ray survey with the XMM-Newton observatory during Performance
    Verification. The X-ray data of the Lockman Hole field and the derived
    cumulative source counts were reported by Hasinger et al.
    (2001A&A...365L..45H). We restrict the analysis to the sample of 98
    sources with more than 70 net counts (flux limit in the [0.5-7]keV
    band of 1.6x10-15erg/cm2/s) of which 61 have redshift
    identification. We find no correlation between the spectral index and
    the intrinsic absorption column density NH and, for both the Type-1
    and Type-2 AGN populations, we obtain <Gamma≳=2.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table2.dat       124       98   X-ray catalogue


See also:
  B/xmm : XMM-Newton Observation Log (XMM-Newton Science Operation Center, 2002)
  J/PASJ/53/445 : ASCA Deep survey in Lockman Hole Field (Ishisaki+, 2001)


Byte-by-byte Description of file: table2.dat

   Bytes Format Units    Label     Explanations

   1-  2  I2    ---     [MBH2002]  [1/98] Source sequential number
   4-  6  I3    ---      ROSAT     Source ROSAT number
       8  I1    ---      Type      [1/9] Type (1)
  10- 11  I2    h        RAh       Right ascension (J2000.0)
  13- 14  I2    min      RAm       Right ascension (J2000.0)
  16- 19  F4.1  s        RAs       Right ascension (J2000.0)
      21  A1    ---      DE-       Declination sign (J2000.0)
  22- 23  I2    deg      DEd       Declination (J2000.0)
  25- 26  I2    arcmin   DEm       Declination (J2000.0)
  28- 29  I2    arcsec   DEs       Declination (J2000.0)
  31- 35  F5.2  arcmin   Off-axis  Off-axis angle
  37- 40  I4    ct       Counts    Counts in the [0.5-7]keV rest-frame band
  42- 46  F5.2 10-17W/m2 F[0.5-2]  Flux in the [0.5-2]keV rest-frame band
  48- 52  F5.2 10-17W/m2 F[2-10]   Flux in the [2-10]keV rest-frame band
  54- 57  F4.2 10-17W/m2 F[5-10]   Flux in the [5-10]keV rest-frame band
  59- 62  F4.1  mag      Rmag      ? R magnitude
  64- 67  F4.1  mag      K'mag     ? K' (1.92-2.29µm) magnitude
  69- 71  F3.1  mag      R-K'      ? R-K' colour index
  73- 77  F5.3  ---      z         ? Redshift
      78  A1    ---      n_z       [g] g: Photometric redshift (see
                                              Lehmann et al. 2001a)
  79- 83  F5.2  [cm-2] logNH[0.5-2]  ? Intrinsic H column density in the
                                         [0.5-2]keV rest-frame band (2)
  85- 89  F5.2  [cm-2] logNH[2-10]  ? Intrinsic H column density in the
                                         [2-10]keV rest-frame band (2)
  91- 95  F5.2  [cm-2]   90logNH   ? 90% confidence range for logNH
  97-100  F4.2  ---  Gamma[0.5-2]  ? Spectral Index in the [0.5-2]keV
                                         rest-frame band (3)
 102-105  F4.2  ---   Gamma[2-10]  ? Spectral Index in the [2-10]keV
                                        rest-frame band (3)
 107-110  F4.2  ---      90Gamma   ? 90% confidence range for Gamma
 112-117  F6.3  [10-7W] LX[0.5-2]  ? Observed luminosity in the rest-frame
                                        band [0.5-2]keV
 119-124  F6.3  [10-7W]  LX[2-10]  ? Observed luminosity in the rest-frame
                                        band [2-10]keV

Note (1): Optical classification:
     1 = Type1 AGN
     2 = Type2 AGN
     3 = galaxy
     4 = group/cluster
     5 = star
     9 = unidentified source.
Note (2): Intrinsic absorption in excess to the Galactic ones
     (∼5.7*1019cm-2).
Note (3): the Gamma index is such that  N(E) ∝ E-Gamma
     where N(E) = number of photons/keV/cm2/s


History:
    From electronic version of the journal

References:
    Hasinger et al., Paper I             2001A&A...365L..45H
(End)                         James Marcout, Patricia Bauer [CDS]    08-Nov-2002