J/A+A/479/283 XMM observations of the Lockman Hole (Brunner+, 2008)
XMM-Newton observations of the Lockman Hole:
X-ray source catalogue and number counts.
Brunner H., Cappelluti N., Hasinger G., Barcons X., Fabian A.C.,
Mainieri V., Szokoly G.
<Astron. Astrophys., 479, 283-300 (2008)>
=2008A&A...479..283B 2008A&A...479..283B
ADC_Keywords: X-ray sources ; Surveys ; Positional data
Keywords: survey - galaxies: active - galaxies: quasars: general -
X-ray: galaxies - X-ray: general
Description:
The Lockman Hole represents the sky area of lowest Galactic
line-of-sight columns density. It was observed by the XMM-Newton
X-ray observatory in 18 pointings performed between April 2000 and
December 2002. The total exposure time spent on the field was 1.16Ms
(EPIC pn detector; EPIC MOS detector: 1.30 Ms). The effective exposure
after removal of times of high particle background is 637ks (EPIC pn
detector; EPIC MOS detector: 765ks). The catalogue lists positions,
count rates, fluxes, hardness ratios, and partial optical
classifications of 409 X-ray point sources detected in the central
0.196°2 of the field down to a detection likelihood threshold of 10
(3.9sigma). The analysis was performed using the XMM-Newton SAS data
analysis package version 6.0.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 232 409 Point source catalogue
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See also:
B/xmm : XMM-Newton Observation Log (XMM-Newton Science Operation Center, 2007)
IX/39 : XMM-Newton 2nd Serendipitous Source Catalogue (2XMM) (XMM-SSC, 2007)
J/A+A/371/833 : ROSAT Ultra Deep Survey (Lehmann+, 2001)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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2- 5 I4 --- XMMNR Source number
7- 9 I3 --- ROSNR ? ROSAT source number (Lehmann et al.,
2001, Cat. J/A+A/371/833)
11- 15 A5 --- ClR Object class of ROSAT object
(Lehmann et al., 2001, J/A+A/371/833)
as displayed in Figure 7
17- 21 A5 --- ClX Object class from XMM follow-up
(Szokoly et al., in preparation)
as displayed in Figure 7
23- 26 A4 --- --- [XMMU]
28- 43 A16 --- XMMU XMMU designation (JHHMMSS.s+DDMMSS)
45- 46 I2 h RAh Right Ascension J2000 (hours)
48- 49 I2 min RAm Right Ascension J2000 (minutes)
51- 55 F5.2 s RAs Right Ascension J2000 (seconds)
57 A1 --- DE- Declination sign J2000
58- 59 I2 deg DEd Declination J2000 (degrees)
61- 62 I2 arcmin DEm Declination J2000 (minutes)
64- 67 F4.1 arcsec DEs [0/60] Declination J2000 (arcsec)
69- 71 F3.1 arcsec e_Pos Positional error (arcsec)
73- 78 I6 --- Ldet0 Likelihood of detection (0.5-10.0keV band)
80- 85 F6.2 ct/ks CR0 Source count rate (0.5-10.0keV band) (1)
87- 90 F4.2 ct/ks e_CR0 Count rate error (0.5-10.0keV band)
92- 98 F7.1 10-19W/m2 Flux0 Flux (0.5-10.0keV band) (2)
100-103 F4.1 10-19W/m2 e_Flux0 Flux error (0.5-10.0kev band) (3)
105-110 I6 --- Ldet1 Likelihood of detection (0.5-2.0keV band)
112-117 F6.2 ct/ks CR1 Source count rate (0.5-2.0keV band) (1)
119-122 F4.2 ct/ks e_CR1 Count rate error (0.5-2.0keV band)
124-130 F7.1 10-19W/m2 Flux1 Flux (0.5-2.0keV band) (4)
132-135 F4.1 10-19W/m2 e_Flux1 Flux error (0.5-2.0keV band)
137-142 I6 --- Ldet2 Likelihood of detection (2.0-4.5keV band)
144-149 F6.2 ct/ks CR2 Source count rate (2.0-4.5keV band) (1)
151-154 F4.2 ct/ks e_CR2 Count rate error (2.0-4.5keV band)
156-162 F7.1 10-19W/m2 Flux2 Flux (2.0-10.0keV band) (4)
164-167 F4.1 10-19W/m2 e_Flux2 Flux error (2.0-10.0keV band)
169-174 I6 --- Ldet3 Likelihood of detection (4.5-10.0keV band)
176-181 F6.2 ct/ks CR3 Source count rate (4.5-10.0keV band) (1)
183-186 F4.2 ct/ks e_CR3 Count rate error (4.5-10.0keV band)
188-194 F7.1 10-19W/m2 Flux3 Flux (5.0-10.0keV band) (4)
196-199 F4.1 10-19W/m2 e_Flux3 Flux error (5.0-10.0keV band)
201-205 F5.2 --- HR1 [-1/1] Hardness Ratio (CR2-CR1)/(CR2+CR1)
207-210 F4.2 --- e_HR1 Hardness Ratio error
212-216 F5.2 --- HR2 [-1/1]?=9.99 Hardness Ratio
(CR3-CR2)/(CR3+CR2)
217-221 F5.2 --- e_HR2 ?=9.99 Hardness Ratio error
223-227 F5.2 --- HR3 [-1/1] Hardness Ratio (CR3-CR1)/(CR3+CR1)
229-232 F4.2 --- e_HR3 Hardness Ratio error
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Note (1): Combined all-EPIC point source count rate, corrected for
telescope vignetting and for the fraction of counts outside the
source extraction region.
Note (2): Sum of 0.5-2.0keV and 2.0-10.0keV band flux.
Note (3): Calculated by error propagation from individual band flux errors.
Note (4): Extrapolated from source count rate by assuming an absorbed
power law spectrum with spectral index Gamma=2.0 and Galactic
NH=5.7x1019cm-2. Expressed in 10-16erg/cm2/s.
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Acknowledgements:
H. Brunner, hbrunner(at)mpe.mpg.de
(End) Patricia Vannier [CDS] 08-Feb-2008