J/A+A/476/1191 XMM-Newton serendipitous survey. IV (Barcons+, 2007)
The XMM-Newton serendipitous survey.
IV. Optical identification of the XMM-Newton medium sensitivity survey (XMS).
Barcons X., Carrera F.J., Ceballos M.T., Page M.J., Bussons-Gordo J.,
Corral A., Ebrero J., Mateos S., Tedds J.A., Watson M.G., Baskill D.,
Birkinshaw M., Boller T., Borisov N., Bremer M., Bromage G.E., Brunner H.,
Caccianiga A., Crawford C.S., Cropper M.S., Della Ceca R., Derry P.,
Fabian A.C., Guillout P., Hashimoto Y., Hasinger G., Hassall B.J.M.,
Lamer G., Loaring N.S., Maccacaro T., Mason K.O., McMahon R.G., Mirioni L.,
Mittaz J.P.D., Motch C., Negueruela I., Osborne J.P., Panessa F.,
Perez-Fournon I., Pye J.P., Roberts T.P., Rosen S., Schartel N.,
Schurch N., Schwope A., Severgnini P., Sharp R., Stewart G.C., Szokoly G.,
Ullan A., Ward M.J., Warwick R.S., Wheatley P.J., Webb N.A., Worrall D.,
Yuan W., Ziaeepour H.
<Astron. Astrophys., 476, 1191-1203 (2007)>
=2007A&A...476.1191B 2007A&A...476.1191B
ADC_Keywords: X-ray sources ; Galaxy catalogs ; Galaxies, photometry
Keywords: X-rays: general - X-rays: galaxies - X-rays: stars - galaxies: active
Abstract:
X-ray sources at intermediate fluxes (a few x10-14erg/cm2/s) with
a sky density of ∼100deg-2 are responsible for a significant fraction
of the cosmic X-ray background at various energies below 10keV. The
aim of this paper is to provide an unbiased and quantitative
description of the X-ray source population at these fluxes and in
various X-ray energy bands.
We present the XMM-Newton Medium sensitivity Survey (XMS), including a
total of 318 X-ray sources found among the serendipitous content of 25
XMM-Newton target fields. The XMS comprises four largely overlapping
source samples selected at soft (0.5-2keV), intermediate (0.5-4.5keV),
hard (2-10keV) and ultra-hard (4.5-7.5keV) bands, the first three of
them being flux-limited.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 108 318 XMS X-ray source list
table5.dat 84 318 Optical identifications of the XMS
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See also:
B/xmm : XMM-Newton Observation Log (XMM-Newton SOC, 2007)
IX/37 : XMM-Newton Serendipitous Source Catalogue, 1XMM (XMM-SSC, 2003)
J/A+A/428/383 : XMM-Newton Bright Serendipitous Survey (Della Ceca+, 2004)
J/A+A/469/27 : XMM-Newton Serendipitous Survey AXIS X-ray source counts
(Carrera+, 2007)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- --- [XMSJ]
6- 20 A15 --- XMSJ Source name (HHMMSS.s+DDMMSS)
22- 23 I2 h RAh Right ascension (J2000)
25- 26 I2 min RAm Right ascension (J2000)
28- 31 F4.1 s RAs Right ascension (J2000)
33 A1 --- DE- Declination sign (J2000)
34- 35 I2 deg DEd Declination (J2000)
37- 38 I2 arcmin DEm Declination (J2000)
40- 43 F4.1 arcsec DEs Declination (J2000)
45- 47 F3.1 arcsec r Statistical error radius at 90%
confidence in the position of the
X-ray source
49- 52 A4 --- Sample [SHXU ] Sample (1)
54- 58 F5.2 10-17W/m2 S(0.5-2) ?=- Flux density in soft (S)
(0.5-2keV) band
60- 63 F4.2 10-17W/m2 e_S(0.5-2) ?=- rms uncertainty on S(0.5-2)
65- 69 F5.2 10-17W/m2 S(2-10) ?=- Flux density in hard (H)
(2-10keV) band
71- 75 F5.2 10-17W/m2 e_S(2-10) ?=- rms uncertainty on S(2-10)
77- 81 F5.2 10-17W/m2 S(0.5-4.5) ?=- Flux density in intermediate (X)
(0.5-4.5keV) band
83- 86 F4.2 10-17W/m2 e_S(0.5-4.5) ?=- rms uncertainty on S(0.5-4.5)
88- 92 F5.2 10-17W/m2 S(4.5-7.5) ?=- Flux density in ultra-hard (U)
(4.5-7.5keV) band
94- 97 F4.2 10-17W/m2 e_S(4.5-7.5) ?=- rms uncertainty on S(4.5-7.5)
99-103 F5.2 --- HR2 Hardness ratio, HR2=(H-S)/(H+S) (2)
105-108 F4.2 --- e_HR2 rms uncertainty on HR2
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Note (1): Sample code as follows:
S = Soft X-ray band sample
H = Hard X-ray band sample
X = Intermediate X-ray band sample
U = Ultra-hard X-ray band sample
Note (2): Hardness Ratio defined as HR2=(H-S)/(H+S), where S and H are
exposure-time corrected count rates in the 0.5-2keV and 2-4.5keV
bands respectively.
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- --- [XMSJ]
6- 20 A15 --- XMSJ Source name (HHMMSS.s+DDMMSS)
22- 23 I2 h RAo.h ? Optical counterpart right ascension (J2000)
25- 26 I2 min RAo.m ? Optical counterpart right ascension (J2000)
28- 31 F4.1 s RAo.s ? Optical counterpart right ascension (J2000)
33 A1 --- DEo.- ? Optical counterpart declination sign (J2000)
34- 35 I2 deg DEo.d ? Optical counterpart declination (J2000)
37- 38 I2 arcmin DEo.m ? Optical counterpart declination (J2000)
40- 43 F4.1 arcsec DEo.s [0/60]? Optical counterpart declination (J2000)
45 A1 --- l_g'mag Limit flag on g'mag
46- 50 F5.2 mag g'mag ? g' magnitude
52 A1 --- l_r'mag Limit flag on r'mag
53- 57 F5.2 mag r'mag ? r' magnitude
59 A1 --- l_i'mag Limit flag on i'mag
60- 64 F5.2 mag i'mag ? i' magnitude
66- 70 F5.2 mag Rmag ? R magnitude
72 A1 --- Id [YCE] Identification flag (1)
74- 78 A5 --- Type ?=- Type of the optical counterpart (2)
80- 84 F5.3 --- z ? Redshift
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Note (1): Flag as follows:
Y = source has been positively identified via optical spectroscopy
C = there is a single clear optical candidate counterpart from in
optical images
E = there is no candidate counterpart down to our imaging sensitivity
Note (2): classes are defined as follows:
BLAGN = Broad Line Active Galactic Nuclei
NELG = Narrow Emission Line Galaxies
ALG = Absorption Line Galaxies (spectra without obvious emission lines)
BLLac = galaxy spectrum without emission classified as BL Lac object
Clus = cluster (obvious evidence for a galaxy concentration)
Star = X-ray sources with a stellar spectrum
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History:
From electronic version of the journal
References:
Watson et al., Paper I 2001A&A...365L..51W 2001A&A...365L..51W
Barcons et al., Paper II 2002A&A...382..522B 2002A&A...382..522B
Carrera et al., Paper III 2007A&A...469...27C 2007A&A...469...27C, Cat. J/A+A/469/27
(End) Patricia Vannier [CDS] 21-Dec-2007