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J/MNRAS/369/156     X-ray spectra in 13H XMM/Chandra deep field  (Page+, 2006)
X-ray spectra of sources in the 13H XMM-Newton/Chandra deep field.
    Page M.J., Loaring N.S., Dwelly T., Mason K.O., McHardy I., Gunn K.,
    Moss D., Sasseen T., Cordova F., Kennea J., Seymour N.
   <Mon. Not. R. Astron. Soc., 369, 156-170 (2006)>
   =2006MNRAS.369..156P
ADC_Keywords: Surveys ; X-ray sources ; Spectroscopy

Keywords: surveys - galaxies: active - quasars: general - X-rays: galaxies


Abstract:
    We present the X-ray spectra of 86 optically identified sources in the
    13H XMM-Newton/Chandra deep field which have >70 X-ray counts. The
    majority of these sources have 2-10keV fluxes between 10-15 and
    5x10-14erg/cm2/s. The sample consists of 50 broad-line active
    galactic nuclei (BLAGN), 25 narrow emission-line galaxies (NELGs), six
    absorption-line galaxies and five Galactic stars. The majority (42/50)
    of the BLAGN have X-ray spectra which are consistent with a power-law
    shape.

Description:
    The 13H field was observed three times with XMM-Newton for a total
    exposure time of 200ks.

    Optical spectroscopic observations were carried out in 2002 and 2003
    at the William Herschel Telescope, using the AF2/WYFFOS multifibre
    positioner and spectrograph, and at the W.M. Keck observatory, using
    the LRIS and DEIMOS multi-object spectrographs.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table1.dat        67       86   Power-law fits to the XMM-Newton spectra


See also:
   J/MNRAS/362/1371 : XMM-Newton 13H deep field (Loaring+, 2005)
   J/MNRAS/342/802  : Chandra survey of 13-h XMM/ROSAT survey (McHardy+, 2003)


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

   Bytes Format Units             Label     Explanations

   1-  8  A8    ---               Type      Type of object
                                            (BLAGN, NELGs, galaxies or stars)
  10- 12  I3    ---              [LDP2005]  Sequential number
  14- 17  F4.2  ---               z         ?=- Redshift
  19- 22  F4.2  ----              GAMMA     Photon index GAMMA (1)
  24- 27  F4.2  ----              E_GAMMA   Error on GAMMA (upper limit)
  29- 32  F4.2  ----              e_GAMMA   Error on GAMMA (lower limit)
  34- 39  F6.2  10-6ph/cm2/s/keV  alpha     Power-law normalization at 1keV in
                                            10-6ph/cm2/s/keV
  41- 44  F4.2  10-6ph/cm2/s/keV  E_alpha   Error on alpha (upper limit)
  46- 49  F4.2  10-6ph/cm2/s/keV  e_alpha   Error on alpha (upper limit)
  51- 54  I4    ---               chi2      chi2 value of the fit
      55  A1    ---               ---       [/]
  56- 58  I3    ---               nu        Degrees of freedom of the chi2 (nu)
      60  A1    ---               l_Pr      Limit flag on P
  61- 67  E7.4  ---               Pr        Null hypothesis probability
                                            corresponding to chi2/nu

Note (1):
    The spectral density of photons n(E) is proportional to E-GAMMA


History:
    From electronic version of the journal
(End)                                      Patricia Vannier [CDS]    27-Nov-2006