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 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 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:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 124 98 X-ray catalogue
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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
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Bytes Format Units Label Explanations
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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
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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
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History:
From electronic version of the journal
References:
Hasinger et al., Paper I 2001A&A...365L..45H 2001A&A...365L..45H
(End) James Marcout, Patricia Bauer [CDS] 08-Nov-2002