J/MNRAS/311/456 RIXOS source catalogue (Mason+, 2000)
The ROSAT International X-ray/Optical Survey (RIXOS): source catalogue
Mason K.O., Carrera F.J., Hasinger G., Andernach H.,
Aragon-Salamanca A., Barcons X., Bower R., Brandt W.N.,
Branduardi-Raymont G., Burgos-Martin J., Cabrera-Guerra F., Carballo R.,
Castander F., Ellis R.S., Gonzalez-Serrano J.I., Martinez-Gonzalez E.,
Martin-Mirones J.M., McMahon R.G., Mittaz J.P.D., Nicholson K.L.,
Page M.J., Perez-Fournon I., Puchnarewicz E.M., Romero-Colmenero E.,
Schwope A.D., Vila B., Watson M.G., Wonnacott D.
<Mon. Not. R. Astron. Soc. 311, 456 (2000)>
=2000MNRAS.311..456M 2000MNRAS.311..456M
ADC_Keywords: X-ray sources ; Surveys
Mission_Name: ROSAT
Keywords: surveys - stars: late-type - galaxies: active -
galaxies: clusters: general - quasars: general - X-rays: general
Description:
We describe the ROSAT International X-ray/Optical Survey
(RIXOS), a medium-sensitivity survey and optical identification
of X-ray sources discovered in ROSAT high Galactic latitude
fields (|b|>280) and observed with the Position Sensitive Proportional
Counter (PSPC) detector. We presents a catalogue of the RIXOS sources
and their optical identifications.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
rixos.dat 188 404 RIXOS Source Catalogue (table2 of paper)
table1.dat 86 82 ROSAT fields used in the RIXOS survey
table3.dat 54 58 Catalogue of identifications of RIXOS sources
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Byte-by-byte Description of file: rixos.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- --- [RXJ]
4- 18 A15 --- RXJ Source designation, derived from the J2000
coordinates of the X-ray centroid
20- 22 I3 arcsec r90 ? X-ray 90% confidence positional radius
24- 25 I2 h RAh Right ascension (J2000) (1)
27- 28 I2 min RAm Right ascension (J2000) (1)
30- 34 F5.2 s RAs Right ascension (J2000) (1)
36 A1 --- DE- Declination sign (J2000) (1)
37- 38 I2 deg DEd Declination (J2000) (1)
40- 41 I2 arcmin DEm Declination (J2000) (1)
43- 46 F4.1 arcsec DEs Declination (J2000) (1)
48- 52 F5.1 10-17W/m2 SX ? X-ray flux (0.5-2.0 keV) derived from the
measured count rate assuming a spectral
slope of α=-1. (2)
54- 58 F5.1 10-17W/m2 SX2 ? X-ray flux (0.5-2.0 keV) derived from the
best fit spectral slope and (with the
exception of stellar IDs) after correcting
for Galactic absorption
60- 64 F5.1 ct/ks XCR ? X-ray count rate per 1000s.
66- 68 F3.1 ct/ks e_XCR ? rms uncertainty on XCR
70- 73 I4 ct MLC ? Tolal X-ray counts based on maximum
likelihood fits
75- 78 F4.1 --- SI ? X-ray spectral index (3)
80- 82 F3.1 --- e_SI ? rms uncertainty on SI
84 A1 --- n_Mag Magnitude considered (4)
85- 89 F5.2 mag Mag ? Magnitude of the optical counterpart (or
the brightest galaxy for clusters)
91- 95 F5.1 --- SIopt ? Slope of the optical continuum (5)
97 A1 --- u_ID uncertainty flag on ID
99-106 A8 --- ID Category of optical ID (6)
107-114 A8 --- Type ID subtype.
118 A1 --- u_z Uncertainty flag on z
120-124 F5.3 --- z ? Redshift of extragalactic counterparts
126-172 A47 --- EmLines Emission lines observed in AGN and ELG IDs
174-175 I2 1000km/s FWHM ? FWHM of the emission line followed by "*",
rounded down to the nearest integer (7)
176 A1 --- u_FWHM rms uncertainty on FWHM
178-180 A3 --- Note [NIC ] Note (8)
182-188 A7 --- RIXOS RIXOS Field (ID) and Source ID (SID) for
cross reference to other RIXOS papers
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Note (1): J2000 coordinates of the optical counterpart if it is a single object.
For clusters and unidentified sources the X-ray centroid is given.
Note (2): Flux used to define membership in the catalogue.
Note (3): X-ray spectral index defined such that
FX∝EαX_^
and derived by fitting three colour X-ray data assuming Galactic
absorption (except for stellar IDs).
See Mittaz et al. (1999MNRAS.308..233M 1999MNRAS.308..233M) for details.
Note (4): the origin of the magnitude is:
C - from other catalogues (see Table 3);
E - from APM measurements of POSS-E plates;
O - from APM measurements of POSS-O plates;
R - from R-band CCD images;
V - from V-band CCD images;
S - slit magnitudes derived by folding the spectrum through and
R-band response.
The typical accuracy of the slit magnitudes is about 30% (see
Puchnarewicz et al., 1996MNRAS.281.1243P 1996MNRAS.281.1243P).
Note (5): Uncertainties in the slope are about 50% and dominated by
systematic effects. See Puchnarewicz et al. (1996MNRAS.281.1243P 1996MNRAS.281.1243P).
Note (6): The number in parenthesis following the category "Clus" indicates
the number of cluster galaxies whose redshifts have been measured.
Note (7): Preference is given to the Hβ or MgII lines when they are
available and well defined. Otherwise the best defined permitted line
in the spectrum is used. More complete details of emission line
measurements are given in Puchnarewicz et al (1997MNRAS.291..177P 1997MNRAS.291..177P).
Note (8): Signifies that there is a catalogue cross-reference in table 3 (C),
an additional note in section 3.2 (N), or that there is a CCD image
of the field in Fig. 4 (I).
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1 A1 --- n_RIXOS [*] *: RIXOS3 sample
3- 5 I3 --- RIXOS RIXOS field ID
7- 13 A7 --- ROR ROSAT observation request number
15- 19 F5.2 10+20cm-2 NH Galactic absorbing column in the direction
of the field centre derived from Stark et al.
(1992ApJS...79...77S 1992ApJS...79...77S) in 1020atoms/cm2
21- 25 I5 s ExpTime Total ROSAT exposure time used for the
detection
27- 31 I5 s SpeTime ? ROSAT exposure time used for the spectral
analysis
32 A1 --- Note [abc] Note about the original data (1)
34- 35 I2 h RAh Field center right ascension (J2000)
37- 38 I2 min RAm Field center right ascension (J2000)
40- 41 I2 s RAs [0/60] Field center right ascension (J2000)
43 A1 --- DE- Field center declination sign (J2000)
44- 45 I2 deg DEd Field center declination (J2000)
47- 48 I2 arcmin DEm Field center declination (J2000)
50- 51 I2 arcsec DEs [0/60] Field center declination (J2000)
53- 56 F4.2 arcmin Rad Excluded radius around the target
58- 59 I2 --- Ntot Total number of RIXOS sources in the field
61- 62 I2 --- Nid Number of secure identifications in field
64 I1 --- Np Number of probable identifications
66- 86 A21 --- Target Name of the ROSAT target
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Note (1): the following symbols are used:
a = No ROSAT public data available at the time of the spectral analysis
b = Detection image coadded from several individual images. The ROR
number given correspond to the single longest exposure, that was
also used for the spectral analysis.
c = No spectral analysis performed because no sources were detected in
this field above the survey flux limit
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- --- [RXJ]
4- 18 A15 --- RXJ RIXOS source name
20- 54 A35 --- Names Identification in other catalogues
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Acknowledgements: Francisco J. Carrera
History:
* 07-Feb-2000: Original version (communicated by Francisco J. Carrera)
In this version, the source RXJ111809.9+212554 (RIXOS 123_84)
was inadvertently omitted at CDS
* 22-Nov-2013: the missing source RIXOS 123_84 was added.
(End) Patricia Bauer [CDS] 07-Feb-2000