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Detailed Description of J/A+A/588/A103 :
Second ROSAT all-sky survey (2RXS) source catalog (Boller+, 2016)
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Note : this is the description file of the original catalog.
This HTML page corresponds well to the original description, but some minor
changes in the format may have been introduced in the FITS output
files in order to allow for arithmetic operations on quantities
such as coordinates and times. h:m:s and d:m:s units are normally
converted into degrees, and YYYY-MM-DD into julian days.
Similarly, some slight changes may have been introduced in the
units; the value given in the HTML files supersedes the value indicated in the ReadMe
file for this catalogue.
J/A+A/588/A103 Second ROSAT all-sky survey (2RXS) source catalog (Boller+, 2016)
================================================================================
Second ROSAT all-sky survey (2RXS) source catalogue.
Boller T., Freyberg M.J., Truemper J., Haberl F., Voges W., Nandra K.
<Astron. Astrophys. 588, A103 (2016)>
=2016A&A...588A.103B (SIMBAD/NED BibCode)
================================================================================
ADC_Keywords: X-ray sources ; Surveys
Mission_Name: ROSAT
Keywords: X-rays: catalogs
Abstract:
We present the second ROSAT all-sky survey source catalogue, hereafter
referred to as the 2RXS catalogue. This is the second publicly
released ROSAT catalogue of point-like sources obtained from the ROSAT
all-sky survey (RASS) observations performed with the
position-sensitive proportional counter (PSPC) between June 1990 and
August 1991, and is an extended and revised version of the bright and
faint source catalogues.
We used the latest version of the RASS processing to produce
overlapping X-ray images of 6.4 by 6.4 degrees sky regions. To create
a source catalogue, a likelihood-based detection algorithm was applied
to these, which accounts for the variable point-spread function (PSF)
across the PSPC field of view. Improvements in the background
determination compared to 1RXS were also implemented. X-ray control
images showing the source and background extraction regions were
generated, which were visually inspected. Simulations were performed
to assess the spurious source content of the 2RXS catalogue. X-ray
spectra and light curves were extracted for the 2RXS sources, with
spectral and variability parameters derived from these products. We
obtained about 135,000 X-ray detections in the 0.1-2.4keV energy band
down to a likelihood threshold of 6.5, as adopted in the 1RXS faint
source catalogue. Our simulations show that the expected spurious
content of the catalogue is a strong function of detection likelihood,
and the full catalogue is expected to contain about 30 per cent
spurious detections. A more conservative likelihood threshold of 9, on
the other hand, yields about 71,000 detections with a 5 per cent
spurious fraction.
We recommend thresholds appropriate to the scientific application.
X-ray images and overlaid X-ray contour lines provide an additional
user product to evaluate the detections visually, and we performed our
own visual inspections to flag uncertain detections. Intra-day
variability in the X-ray light curves was quantified based on the
normalised excess variance and a maximum amplitude variability
analysis. X-ray spectral fits were performed using three basic models,
a power law, a thermal plasma emission model, and black-body emission.
Thirty-two large extended regions with diffuse emission and embedded
point sources were identified and excluded from the present analysis.
The 2RXS catalogue provides the deepest and cleanest X-ray all-sky
survey catalogue in advance of eROSITA.
Description:
We have re-analysed the photon event files from the ROSAT all-sky
survey. The main goal was to create a catalogue of point-like sources,
which is referred to as the 2RXS source catalogue. We improved the
reliability of detections by an advanced detection algorithm and a
complete screening process. New data products were created to allow
timing and spectral analysis. Photon event files with corrected
astrometry and Moon rejection (RASS-3.1 processing) were made
available in FITS format. The 2RXS catalogue will serve as the basic
X-ray all-sky survey catalogue until eROSITA data become available.
File Summary:
FileName Lrecl Records Explanations
× 80 . This file
× ReadMe 80 . This file
× cat2rxs.dat 2696 135118 Catalogue of 135118 2RXS ROSAT sources
× cat2rxs.fits 2880 77858 Fits version of the catalog
× Ximg/* 0 135118 X images in pdf
× lcx/* 0 333063 X-ray light curves in pdf
(3 files for 111021 sources)
× spx/* 0 29388 X-ray spectra in pdf (3 files for 9796 sources)
See also:
IX/10 : ROSAT All-Sky Bright Source Catalogue (1RXS) (Voges+ 1999)
IX/29 : ROSAT All-Sky Survey Faint Source Catalog (Voges+ 2000)
IX/28 : ROSAT HRI Pointed Observations (1RXH) (ROSAT Team, 2000)
IX/30 : Second ROSAT PSPC Catalog (2RXP) (ROSAT, 2000)
IX/46 : XMM-Newton Serendipitous Source Catalogue 3XMM-DR5 (XMM-SSC, 2016)
IX/43 : 1SXPS Swift X-ray telescope point source catalogue (Evans+ 2014)
III/235 : Spectroscopically Identified White Dwarfs (McCook+, 2008)
VII/258 : Quasars and Active Galactic Nuclei (13th Ed.) (VV10) (Veron+ 2001)
I/259 : The Tycho-2 Catalogue (Hog+ 2000)
V/50 : Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)
V/106 : Catalogue of X-ray binaries (HMXB) (Liu+ 2001)
J/A+A/455/1165 : Galactic high-mass X-ray binaries (LMXB) (Liu+ 2006)
J/A+A/480/611 : XMM-Newton Slew Survey catalogue, XMMSL1 (Saxton+, 2008)
J/A+A/403/247 : Variability in ROSAT All-Sky Survey (FUH) (Fuhrmeister+, 2003)
J/A+A/316/147 : Catalogue of ROSAT White Dwarfs (Fleming+ 1996)
http://www.atnf.csiro.au/people/pulsar/psrcat : ATNF Home page
http://www.sdss.org : SDSS Home page
Byte-by-byte Description of file: cat2rxs.dat
Bytes Format Units Label Explanations
1- 21 A21 --- 2RXS IAU name (IAU_NAME) (1)
23- 28 I6 --- Seq ? Sky field number (SEQ_ID)
30- 32 I03 --- IndDet ? Source number in a certain sky field
(IND_DET)
34- 42 F9.2 --- ExiML Detection likelihood (EXI_ML)
44- 52 F9.2 ct Cts Background corrected source counts (CTS)
54- 63 F10.6 ct e_Cts Error of the source counts (CERR)
65- 72 F8.4 ct/s CRate Source count rate (RATE)
74- 80 F7.4 ct/s e_CRate Error of the count rate (ERATE)
82- 89 F8.2 s ExpTime Source exposure time (EXPOSURE)
91- 99 F9.5 deg RAdeg Right ascension (J2000) (RA_DEG)
101-109 F9.5 deg DEdeg Declination (J2000) (DEC_DEG)
111-122 A12 --- RAhms Sexadecimal right ascension (J2000)
(RA_HMS)
124-135 A12 --- DEdms Sexadecimal declination (J2000)
(DEC_DMS)
137-145 F9.5 deg GLON Latitude in galactic coordinate (LII)
147-155 F9.5 deg GLAT Longitude in galactic coordinate (BII)
157-165 F9.5 deg Lambda Latitude in ecliptic coordinate (LAMBDA)
167-175 F9.5 deg Beta Longitude in ecliptic coordinate (BETA)
177-185 F9.3 pix Ext Source extent in units of image pixels
(EXT)
187-193 F7.3 pix e_Ext Error of the source extent (EXTERR)
195-201 F7.2 --- ExtML Proability of the source extend (EXT_ML)
203-208 F6.3 --- HR1 ? Hardness ratio 1 value (HR_1) (2)
210-217 F8.3 --- e_HR1 ? Error of HR1 (HR1err)
219-224 F6.3 --- HR2 ? Hardness ratio 2 value (HR_2) (2)
226-234 F9.3 --- e_HR2 ? Error of HR2 (HR2err)
236 I1 --- USKY ? Unique flag (USKY) (3)
238 I1 --- Masked [1]? Extended emission regions
(0=yes 1=no) (Masked)
240 I1 --- FAll [0]? Detection flag of nearby sources
(FLAG_all) 0=best
242-244 I3 --- Sflag ? S flag (0=good) (S_flag) (4)
246-248 I3 --- Index ? Running number in catalogue (INDEX)
250-258 F9.4 --- AmpMax ? Maximum amplitude variability
(AMPL_MAX)
260-268 F9.5 ct/s CM ? Mean count rate value (CM)
270-278 F9.5 ct/s CD ? Standard deviation of CM (CD)
280-288 F9.2 ct CTSlc ? Number of counts calculated from the
light curve analysis (CTS_lc)
290-298 F9.5 ct/s Cmin ? Minimum count rate ( CMIN)
300-308 F9.5 ct/s Cmax ? Maximum count rate ( CMAX)
310-318 F9.5 ct/s e_Cmin ? Error of CMIN (EMIN)
320-328 F9.5 ct/s e_Cmax ? Error of CMAX (EMAX)
330-338 F9.3 --- Chi2lc ? Chi2 value from the LC analysis
(CHI2_lc)
340-351 E12.6 --- ExcVar ? Normalized excess variance
(EXCESS_VAR)
353-364 E12.6 --- e_ExcVar ? One-sigma uncertainty of Exc_Var
(UNCERTAINTY)
366-375 F10.6 --- sigExc ? Excess variance in units of sigma
(Sigma_Excess)
377-385 F9.4 10+21cm-2 NHgal ? Galactic neutral hydrogen density
(NH_gal)
387-395 F9.4 10+21cm-2 NHfitp ? neutral hydrogen density of PL fits
(NHfitp)
397-408 E12.6 10+21cm-2 e_NHfitp ? Error of NHfitp (NHerrp)
410-419 E10.5 --- Normp ? Normalization for PL fits (NORM_p)
421-430 E10.5 --- e_Normp ? Error of NORM_p (NORMerrp)
432-438 F7.4 --- Gammap ? Photon index (GAMMA_p)
440-451 E12.6 --- e_Gammap ? Error of GAMMA_p (GAMMAerrp)
453-461 F9.6 ct/s CTRspep ? Count rate obtained from the PL fit
(CTRspecp)
463-472 E10.5 mW/m2 Fluxp ? Absorption corrected flux of PL-fit
(FLUX_p)
474-482 F9.4 --- Chi2rspp ? Reduced chi^2 value for the PL-fits
(Chi2redspecp)
484-492 F9.4 --- Chi2spp ? Chi^2 value for the power-law-fits
(Chi2specp)
494-496 I3 --- NDptp ? Number of data points for the PL-fits
(NumDatapts_p)
498-501 I4 --- NDFp ? Number of degrees of freedom (PL)
(NumDegfree_p)
503-513 F11.6 10+21cm-2 NHfitm ? Neutral hydrogen density (mekal fits)
(NHfitm)
515-524 E10.5 10+21cm-2 e_NHfitm ? Error of NHfitm (NHerrm)
526-535 E10.5 --- Normm ? Normalization for the mekal fits
(NORM_m)
537-546 E10.5 --- e_Normm ? Error of NORM_m (NORMerrm)
548-556 F9.6 --- Tempfitm ? Temperature of the mekal fits
(Tempfitm)
558-567 E10.5 --- e_Tempfitm ? Error of Tempfitm (Temperrm)
569-577 F9.6 ct/s CTRspm ? Count rate obtained for the mekal fits
(CTRspecm)
579-587 F9.6 mW/m2 Fluxm ? Absorption corrected flux (mekal fits)
(FLUX_m)
589-598 E10.5 --- Chi2rspm ? Reduced chi^2 value for mekal fits
(Chi2redspecm)
600-609 E10.5 --- Chi2spm ? Chi^2 value for the mekal fits
(Chi2specm)
611-613 I3 --- NDptm ? Number of data points (mekal fits)
(NumDatapts_m)
615-618 I4 --- NDFm ? Number of degrees of freedom (mekal)
(NumDegfree_m)
620-629 F10.5 10+21cm-2 NHfitb ? Neutral hydrogen density (bbdy fits)
(NHfitb)
631-640 E10.5 10+21cm-2 e_NHfitb ? Error of NHfitb (NHerrb)
642-651 E10.5 --- Normb ? Normalization for the black body fits
(NORM_b)
653-662 E10.5 --- e_Normb ? Error of the normalization (bbdy fits)
(NORMerrb)
664-673 F10.6 --- Tempfitb ? Temperature of the black body fits
(Tempfitb)
675-684 E10.5 --- e_Tempfitb ? Error of Tempfitbbdy (Temperrb)
686-694 F9.6 ct/s CTRspb ? Count rate for the black body fit
(CTRspecb)
696-705 E10.5 mW/m2 Fluxb ? Absorption corrected flux (black body)
(FLUX_b)
707-716 E10.5 --- Chi2rspb ? Reduced chi2 value (black body)
(Chi2redspecb)
718-727 E10.5 --- Chi2spb ? Chi2 value for the black body fits
(Chi2specb)
729-731 I3 --- NDptb ? Number of data points (black body)
(NumDatapts_b)
733-736 I4 --- NDFb ? Number of degrees of freedom (bbdy)
(NumDegfree_b)
738-745 F8.4 pix Xima X image coordinate (45 arcsec)
in image pixel (X_IMA)
747-754 F8.4 pix Yima Y image coordinate (45 arcsec)
in image pixel (Y_IMA)
756-763 F8.6 pix e_Xima One-sigma error of X_IMA
in image pixel (XERR)
765-772 F8.6 pix e_Yima One-sigma error of Y_IMA
in image pixel (YERR)
774-782 F9.2 pix Xsky X sky coordinates (0.5 arcsec)
in sky pixel (X_SKY)
784-792 F9.2 pix Ysky Y sky coordinates (0.5 arcsec)
in sky pixel (Y_SKY)
794-796 I3 pix CuRad [600]? Source extraction radius
in sky pixels (CUT_RAD)
798-800 F3.1 --- FA Analyzed fraction of cut radius (FA)
802-805 I4 --- TotNum ? Total number of photons read from the
PET and analyzed by the maximum
likelihood algorithm (TOTNUM)
807-813 F7.4 pix-1 BGR Background in source extraction region
in 1/pix_image (BGR)
815-821 F7.4 --- VigCor Vignetting correction factor (VIG_COR)
823-834 A12 --- Rem [source nrby?] on flags originating from
ML-detection (REMARKS)
836-843 F8.2 ct SB1 ? Counts in band A (SB1)
845-852 F8.2 ct SB2 ? Counts in band B (SB2)
854-861 F8.2 ct SB3 ? Counts in band C (SB3)
863-870 F8.2 ct SB4 ? Counts in band D (SB4)
872-879 F8.2 ct B1 ? Background band A with other catalogue
entries excised (B1)
881-888 F8.2 ct B2 ? Background band B with other catalogue
entries excised (B2)
890-897 F8.2 ct B3 ? Background band C with other catalogue
entries excised (B3)
899-906 F8.2 ct B4 ? Background band D with other catalogue
entries excised (B4)
908-914 F7.3 arcmin+2 Bspa ? Remaining bkg area in square arcmin
916-923 F8.2 ct S1 ? Source counts in band A
(SB1 - B1*sbspa/bspa) (S1)
925-932 F8.2 ct S2 ? Source counts in band B
(SB2 - B2*sbspa/bspa) (S2)
934-941 F8.2 ct S3 ? Source counts in band c
(SB3 - B3*sbspa/bspa) (S3)
943-950 F8.2 ct S4 ? Source counts in band D
(SB4 - B4*sbspa/bspa) (S4)
952-953 I2 --- mXMMSL1 ? Number of counterparts in the XMM Slew
Survey within the distance of 60"
(mult_xmmsl1)
955-959 I5 --- eXMMSL1 ? Source number of nearest counterpart
in the XMM Slew Survey (entr_xmmsl1)
961-966 F6.1 arcsec dXMMSL1 ?=0 Distance of nearest XMMSL1
counterpart (dist_xmmsl1)
968-976 F9.5 deg RA1deg XMMSL Right ascension (J2000)
(RA_xmmsl1)
978-986 F9.5 deg DE1deg XMMSL Declination (J2000) (DEC_xmmsl1)
988-993 A6 --- --- [XMMSL1]
995-1010 A16 --- XMMSL1 Source name in the XMM Slew Survey
(SRCNAME_xmmsl1)
1012-1021 F10.6 ct/s CRB0 ? Broad Band Count rate (RATEB0xmmsl1)
1023-1031 F9.6 ct/s e_CRB0 ? Broad Band Count rate error
(RATEB0exmmsl1)
1033-1042 F10.6 c/s CRB5 ? Count rate, energy band 0.5-2keV
(RATEB5xmmsl1)
1044-1052 F9.6 c/s e_CRB5 ? Count rate error, 0.5-2keV
(RATEB5exmmsl1)
1054-1056 I3 --- m3XMM ? Number of 3XMM counterparts within
the distance of 60"(mult_3xmm)
1058-1063 I6 --- e3XMM ? Source number of nearest counterpart
in the 3XMM Catalogue (entr_3xmm)
1065-1070 F6.1 arcsec d3XMM ?=0 Distance of nearest 3XMM counterpart
(dist_3xmm)
1072-1080 F9.5 deg RA2deg 3XMM Right ascension (J2000) (RA_3xmm)
1082-1090 F9.5 deg DE2deg 3XMM Declination (J2000) (DEC_3xmm)
1092-1095 A4 --- --- [3XMM]
1097-1112 A16 --- 3XMM Source name in the 3XMM Catalogue
(SRCNAME_3xmm)
1114-1125 E12.6 ct/s CREP8 ? 3XMM Count rate (RATEEP83xmm)
1127-1134 F8.6 ct/s e_CREP8 ? 3XMM Count rate error (RATEEP8e3xmm)
1136-1147 E12.6 mW/m2 FluxR ? 3XMM Flux (FLUXR3xmm)
1149-1160 E12.6 mW/m2 e_FluxR ? 3XMM Flux error (FLUXRerr_3xmm)
1162-1164 I3 --- m2RXP ? Number of 2RXP counterparts within
the distance of 300" (mult_2rxp)
1166-1170 I5 --- e2RXP ? Source number of nearest counterpart
in the 2RXP catalogue (entr_2rxp)
1172-1177 F6.1 arcsec d2RXP ?=0 Distance of 2RXP nearest counterpart
(dist_2rxp)
1179-1187 F9.5 deg RA3deg 2RXP Right ascension (J2000) (RA_2rxp)
1189-1197 F9.5 deg DE3deg 2RXP Declination (J2000) (DEC_2rxp)
1199-1214 A16 --- 2RXP Source name in the 2RXP (SRCNAME_2rxp)
1216-1224 F9.6 ct/s CR2RXP ? 2RXP Count rate (CRATE_2rxp)
1226-1233 F8.6 ct/s e_CR2RXP ? 2RXP Count rate error (CRATEerr2rxp)
1235-1239 I5 s ETim2RXP ? 2RXP Source exposure time
(ExpTime_2rxp) (132)
1241-1255 A15 --- ObsID Field number of 2RXP counterpart
(ObsID_2rxp) (133)
1257 I1 --- m1RXS ? Number of 1RXS counterparts within a
distance of 60" (mult_1rxs)
1259-1264 I6 --- e1RXS ? Source number of nearest counterpart
in the 1RXS catalogue (entr_1rxs)
1266-1271 F6.1 arcsec d1RXS ?=0 Distance to nearest 1RXS counterpart
(dist_1rxs) (136)
1273-1281 F9.5 deg RA4deg 1RXS Right ascension (J2000) (RA_1rxs)
1283-1291 F9.5 deg DE4deg 1RXS Declination (J2000) (DEC_1rxs)
1293-1308 A16 --- 1RXS Source name in the 1RXS catalogue
(SRCNAME_1rxs)
1310-1318 F9.6 ct/s CR1RXS ? Source count rate in the 1RXS
(RATE_1rxs)
1320-1327 F8.6 ct/s e_CR1RXS ? Error of RATE_1rxs (RATEerr1rxs)
1329-1340 E12.6 --- CTS1RXS ? Background corrected src counts 1RXS
(CTS_1rxs)
1342-1351 F10.6 --- e_CTS1RXS ? Error of CTS_1rxs (CTSerr1rxs)
1353-1356 I4 --- ExiML1RXS ? Background corrected src counts 1RXS
(EXIML1rxs)
1358-1362 I5 s ExPos1RXS ? Source exposure time in 1RXS
(EXPOS_1rxs) (145)
1364-1372 F9.6 --- HR11RXS ? 1RXS Hardness ratio 1 value
(HR1_1rxs) (5)
1374-1381 F8.6 --- e_HR11RXS ? Error of HR1 in the 1RXS (HR1e_1rxs)
1383-1391 F9.6 --- HR21RXS ? 1RXS Hardness ratio 2 value
(HR2_1rxs) (5)
1393-1400 F8.6 --- e_HR21RXS ? Error of HR2 in the 1RXS (HR2e_1rxs)
1402-1403 I2 --- mVV10 ? Number of counterparts in the Veron
and Verson Catalogue within the
distance of 60" (mult_vv10)
1405-1410 I6 --- eVV10 ? Source number of VV10 nearest
counterpart (entr_vv10)
1412-1417 F6.1 arcsec dVV10 ?=0 Distance to nearest VV10 counterpart
(dist_vv10)
1419-1435 A17 --- VV10 VV10 Catalogue name (NAME_vv10)
1437 A1 --- TypeVV10 [B/A/Q] VV10 Object type (Type_vv10)
1439-1444 F6.3 mag VmagVV10 ? VV10 V magnitude (Vmag_vv10)
1446-1450 F5.3 --- zVV10 ? VV10 Redshift (z_vv10)
1452-1457 I6 --- IndexVV10 ? VV10 Running catalogue number
(Index_vv10) (157)
1459-1467 F9.5 deg RA5deg VV10 Right ascension (J2000) (RA_vv10)
1469-1477 F9.5 deg DE5deg VV10 Declination (J2000) (DEC_vv10)
1479-1480 I2 --- mTYC2 ? Number of the nearest counterpart in
the Tycho2 Catalogue (mult_tyc2)
1482-1488 I7 --- eTYC2 ? Source number of nearest Tyc2
counterpart (entr_tyc2)
1490-1495 F6.1 arcsec dTYC2 ?=0 Distance to nearest Tyc2 counterpart
(dist_tyc2) (162)
1497-1505 F9.5 deg RA6deg Tyc2 Right ascension (J2000) (RA_tyc2)
1507-1515 F9.5 deg DE6deg Tyc2 Declination (J2000) (DEC_tyc2)
1517-1523 I7 --- RecnoTYC2 ? Tyc2 Catalogue number (RecNo_tyc2)
1525-1530 F6.3 mag VTmag ? Tyc2 VT magnitude (VTmag_tyc2) (6)
1532-1537 F6.3 mag BTmag ? Tyc2 BT magnitude (BTmag_tyc2) (6)
1539-1542 I4 --- TYC1 ? Tyc2 TYC1 number (TYC1_tyc2) (7)
1544-1548 I5 --- TYC2 ? Tyc2 TYC2 number (TYC2_tyc2) (7)
1550 I1 --- TYC3 ? Tyc2 TYC3 number (TYC3_tyc2) (7)
1552 I1 --- mBSC ? Number of counterparts in the
Catalogue of Bright Stars (BSC)
within the distance of 300" (mult_bri)
1554-1557 I4 --- eBSC ? Source number of nearest BSC
counterpart (entr_bri)
1559-1564 F6.1 arcsec dBSC ?=0 Distance to nearest BSC counterpart
(dist_bri)
1566-1574 F9.5 deg RA7deg BSC Right ascension (J2000) (RA_bri)
1576-1584 F9.5 deg DE7deg BSC Declination (J2000) (DEC_bri)
1586-1591 F6.3 mag VmagBSC ? BSC V magnitude (Vmag_bri)
1593-1612 A20 --- SpTypeBSC BSC spectral type (SpType_bri)
1614-1617 I4 --- RecnoBSC ? BSC Record catalogue number
(RecNo_bri)
1619-1624 I6 --- HD ? Henry Draper Catalogue Number (HD_bri)
1626 I1 --- mHMXB ? Number of counterparts in the Catalog
of High Mass X-Ray Binaries (HMXBCAT)
within the distance of 60" (mult_hmxb)
1628-1630 I3 --- eHMXB ? Source number of nearest HMXBCAT
counterpart (entr_hmxb)
1632-1637 F6.1 arcsec dHMXB ?=0 Distance of nearest HMXBCAT
counterpart (dist_hmxb)
1639-1647 F9.5 deg RA8deg HMXBCAT Right ascension (J2000)
(RA_hmxb)
1649-1657 F9.5 deg DE8deg HMXBCAT Declination (J2000) (DEC_hmxb)
1659-1679 A21 --- NameHMXB HMXBCAT Catalogue name (Name_hmxb)
1681-1701 A21 --- Name2HMXB HMXBCAT Alternative catalogue name
(Name2_hmxb)
1703-1708 F6.3 mag VmagHMXB ? HMXBCAT V magnitude (Vmag_hmxb)
1710 I1 --- mLMXB ? Number of counterparts in the Catalog
of Low Mass X-Ray Binaries (LMXBCAT)
within the distance of 60" (mult_lmxb)
1712-1714 I3 --- eLMXB ? Source number of nearest LMXBCAT
counterpart (entr_lmxb)
1716-1721 F6.1 arcsec dLMXB ?=0 Distance to nearest LMXBCAT
counterpart (dist_lmxb)
1723-1731 F9.5 deg RA9deg LMXBCAT Right ascension (J2000)
(RA_lmxb)
1733-1741 F9.5 deg DE9deg LMXBCAT Declination (J2000) (DEC_lmxb)
1743-1758 A16 --- NameLMXB LMXBCAT Catalogue name (Name_lmxb)
1760-1772 A13 --- Name2LMXB LMXBCAT Alternative catalogue name
(Name2_lmxb) (194)
1774-1779 F6.3 mag VmagLMXB ? LMXBCAT V magnitude (Vmag_lmxb)
1781-1782 I2 --- mATNF ? Number of counterparts in the Pulsar
Catalogue (ATNF) within the distance
of 60" (mult_atnf)
1784-1787 I4 --- eATNF ? Source number of nearest ATNF
counterpart (entr_atnf)
1789-1794 F6.1 arcsec dATNF ?=0 Distance to nearest ATNF counterpart
(dist_atnf)
1796-1804 F9.5 deg RA10deg ATNF Right ascension (J2000) (RA_atnf)
1806-1814 F9.5 deg DE10deg ATNF Declination (J2000) (DEC_atnf)
1816-1831 A16 --- ATNF ATNF Pulsar name (Name_atnf)
1833-1843 A11 --- TypeATNF ATNF Pulsar type (Type_atnf)
1845-1865 A21 s PerATNF ATNF Pulsar period (Period_atnf)
1867 I1 --- mFUH ? Number of counterparts in the Catalog
of Variable Sources from Fuhrmeister
and Schmitt within the distance of 60"
(mult_fuh)
1869-1872 I4 --- eFUH ? Source number of nearest FUH
counterpart (entr_fuh)
1874-1879 F6.1 arcsec dFUH ?=0 Distance to nearest FUH counterpart
(dist_fuh)
1881-1889 F9.5 deg RA11deg FUH Right ascension (J2000) (RA_fuh)
1891-1899 F9.5 deg DE11deg FUH Declination (J2000) (DEC_fuh)
1901-1904 A4 --- SeqFUH FUH Object number (Seq_fuh)
1906-1935 A30 --- NameFUH FUH Object name (Name_fuh)
1937-1938 I2 --- m1SXPS ? Number of counterparts in Swift 1SXPS
catalogue within a distance of 120"
(mult_1sxps)
1940-1945 I6 --- e1SXPS ? Source number of nearest 1SXPS
counterpart (entr_1sxps)
1947-1952 F6.1 arcsec d1SXPS ?=0 Distance to nearest 1SXPS
counterparts (dist_1sxps)
1954-1962 F9.5 deg RA12deg 1SXPS Right ascension (J2000) (RA_1sxps)
1964-1972 F9.5 deg DE12deg 1SXPS Declination (J2000) (DEC_1sxps)
1974-1980 I7 s Exp1SXPS ? 1SXPS Source exposure time
(Expos_1sxps)
1982-1983 I2 --- Det1SXPS ? 1SXPS Total(0.3-10keV)-band detection
flag (DET_1sxps)
1985-1987 I3 --- Det01SXPS ? 1SXPS Total(0.3-10keV)-band detection
flag (DET0_1sxps)
1989-1991 I3 --- Det11SXPS ? 1SXPS Soft(0.3-1keV)-band detection
flag (DET1_1sxps)
1993-1995 I3 --- Det21SXPS ? 1SXPS Meduin(2-2keV)-band detection
flag (DET2_1sxps)
1997-1999 I3 --- Det31SXPS ? 1SXPS Hard(2-10keV)-band detection
flag (DET3_1sxps)
2001-2006 I6 --- 1SXPS ? Running catalogue number in Swift
(INDEX_1sxps)
2008-2017 F10.6 ct/s CR01SXPS ? Swift Total (0.3-10 keV)-band count
rate (Rate0_1sxps)
2019-2026 F8.6 ct/s e_CR01SXPS ? Swift Error of Rate0_1sxps
(ERate0_1sxps)
2028-2030 I3 --- m1RXH ? Number of counterparts in the 1RXH
catalogue within the distance of 120"
(mult_1rxh)
2032-2036 I5 --- e1RXH ? Source number of nearest 1RXH
counterpart (entr_1rxh)
2038-2043 F6.1 arcsec d1RXH ?=0 Distance to nearest 1RXH counterpart
(dist_1rxh)
2045-2053 F9.5 deg RA13deg 1RXH Right ascension (J2000) (RA_1rxh)
2055-2063 F9.5 deg DE13deg 1RXH Declination (J2000) (DEC_1rxh)
2065-2085 A21 --- 1RXH Source name in the 1RXH (SRCNAME_1rxh)
2087-2095 F9.6 ct/s CR1RXH ? 1RXH Source count rate (CRATE_1rxh)
2097-2104 F8.6 ct/s e_CR1RXH ? Error of CRATE_1RXH (CRATEerr1rxh)
2106-2111 I6 s ETim1RXH ? 1RXH Source exposure time
(ExpTime_1rxh)
2113-2117 F5.1 --- SNR1RXH ? 1RXH Signal-to-noise ratio (SNR_1rxh)
2119 I1 --- mFlem ? Number of counterparts in the Catalog
of White Dwarfs from Flemming within
the distance of 60" (mult_flem)
2121-2123 I3 --- eFlem ? Source number of nearest Flemming
counterpart (entr_flem)
2125-2130 F6.1 arcsec dFlem ?=0 Distance to nearest Flemming
counterpart (dist_flem)
2132-2140 F9.5 deg RA14deg Flemming Right ascension (J2000)
(RA_flem)
2142-2150 F9.5 deg DE14deg Flemming Declination (J2000) (DEC_flem)
2152-2165 A14 --- Flem Source name in the Flemming Catalogue
(SRCNAME_flem)
2167-2176 A10 --- TypeFlem Flemming Object type (Type_flem)
2178 A1 --- WFCFlem [Y/N] Flemming Wide Field Camera
detection? (WFC_flem)
2180-2185 F6.3 ct/s CRFlem ? Flemming count rate (Rate_flem)
2187-2194 F8.6 ct/s e_CRFlem ? Error of the Flemming count rate
(eRateflem)
2196 I1 --- mWD ? Number of counterparts in the Catalog
of White Dwarfs within the distance
of 60 " (mult_wd)
2198-2202 I5 --- eWD ? Source number of nearest WD
counterpart (entr_wd)
2204-2209 F6.1 arcsec dWD ?=0 Distance to nearest WD counterpart
(dist_wd)
2211-2219 F9.5 deg RA15deg WD Rigth ascension (J2000) (RA_wd)
2221-2229 F9.5 deg DE15deg WD Declination (J2000) (DEC_wd)
2231-2240 A10 --- WD WD Source name in the Catalogue
(SRCNAME_wd)
2242-2247 F6.3 mag VmagWD ? WD V-magnitude (Vmag_wd)
2249-2254 F6.3 mag VsphotWD ? WD V mag: multichannel
spectrophotometry (Vsphot_wd)
2256 I1 --- mSDSS ? Source number of the nearest
counterpart in the Sloan Catalogue
(mult_sdss)
2258-2260 I3 --- eSDSS ? Source number of SDSS nearest
counterpart (entr_sdss)
2262-2267 F6.1 arcsec dSDSS ?=0 Distance to nearest SDSS counterpart
(dist_sdss)
2269-2277 F9.5 deg RA16deg SDSS Right ascension (J2000) (RA_sdss)
2279-2287 F9.5 deg DE16deg SDSS Declination (J2000) (DEC_sdss)
2289-2312 A24 --- SDSS SDSS Object name (SDSS_NAME)
2314-2323 F10.6 deg LambdaS ? SDSS Latitude in elliptical coordinate
(LAMBDA_sdss)
2325-2334 F10.6 deg BetaS ? SDSS Longitude in elliptical
coordinate (BETA_sdss)
2336-2337 I2 --- m2RXS ? Number of counterparts in the 2RXS
catalogue within the distance of 60"
(mult_2rxs)
2339-2344 I6 --- e2RXS ? Source number of 2RXS counterpart
(entr_2rxs)
2346-2351 F6.1 arcsec d2RXS ?=0 Distance to 2RXS counterpart
(dist_2rxs)
2353-2358 I6 --- I2RXS ? Index of the nearest 2RXS counterpart
(INDEX_2rxs)
2360-2365 I6 --- Seq2RXS ? Number of sky field of 2RXS nearest
counterpart (SEQID2rxs)
2367-2370 I4 --- IndD2RXS ? Field detection number of 2RXS nearest
counterpart (INDDET2rxs)
2372-2380 F9.2 --- ExiML2RXS ? Detection likelihood of 2RXS nearest
counterpart (EXIML2rxs)
2382-2389 F8.4 ct/s CR2RXS ? Source count rate of 2RXS nearest
counterpart (RATE_2rxs)
2391-2399 F9.5 deg RA17deg 2RXS Right ascension (J2000) (RA_2rxs)
2401-2409 F9.5 deg DE17deg 2RXS Declination (J2000) (DEC_2rxs)
2411-2412 I2 --- USKY2rxs [-1/9]? Sub-field detection cell of
2RXS nearest counterpart (USKY_2rxs)
2414 I1 --- Flag2rxs [0/1]? Nearby flag of 2RXS nearest
counterpart, 0=best (FLAG_2rxs)
2416 I1 --- BkgId ? Selected background (BKG_id)
2418-2426 F9.2 pix Xbkg1 ? X_sky coordinate of background
center 1 in sky pixel (XBKG1)
2428-2436 F9.2 pix Ybkg1 ? Y_sky coordinate of background
center 1 in sky pixel (YBKG1)
2438-2446 F9.2 pix Xbkg2 ? X_sky coordinate of background
center 2 in sky pixel (XBKG2)
2448-2456 F9.2 pix Ybkg2 ? Y_sky coordinate of background
center 2 in sky pixel (YBKG2)
2458-2466 E9.3 ct/s/arcmin2 BGR1rxs ? Background count rate per square
arcmin from 1RXS (BGR_1rxs)
2468-2479 E12.6 ct/s/arcmin2 BGR2rxs Background count rate per square arcmin
from 2RXS (BGR_2rxs)
2481 I1 --- Lflag ? Variability flag 0=good,1=bkg
(LFLAG) (8)
2483-2491 F9.5 ct/s CM6 ? Count rate for light curve with less
than 6s exposure (CM6)
2493-2501 F9.5 ct/s CD6 ? Standard deviation of light curves
with less than 6s exposure (CD6)
2503-2514 E12.6 --- ExVAR6 ? Excess variance for light curves
with less than 6s exposure
(EXCESSVAR6)
2516-2527 E12.6 --- e_ExVAR6 ? Excess variance uncertainty
(UNCERTAINTY6)
2529-2532 I4 --- NbinsA ? Number of data points in the LC
(NBINS_A)
2534-2537 I4 --- Nbins6 ? Number of data points with exposures
times less than 6s (NBINS_6)
2539-2540 I2 --- Nbins1 ? Number of data points with exposures
times less than 1s (NBINS_1)
2542-2543 I2 --- NbinsN ? Number of data points with exposure
times greater than 6s (NBINS_N)
2545-2554 F10.6 ct/s Cmin6 ? Minimum count rate for light curves
with exposure times of less than 6s
(CMIN6)
2556-2565 F10.6 ct/s Cmax6 ? Maximum count rate for light curves
with exposure times of less than 6s
(CMAX6)
2567-2574 F8.6 ct/s e_Cmin6 ? Error of CMIN6 (EMIN6)
2576-2583 F8.6 ct/s e_Cmax6 ? Error of CMAX6 (EMAX6)
2585-2593 F9.2 ct CTSlc6 [-]? Number of counts for light curves
with exposure times of less than 6s
(CTS_lc6) Not used
2595-2604 F10.6 --- sigex6 ? Excess variance for light curves with
exposure times of less than 6s
(SIGMA_excess6)
2606-2615 F10.6 --- CM+CD ? Sum of count rate + standard deviation
2617 A1 --- SPX [0/1] graphical illustrations from
spectral fits available in spx
subdirectory
2619 A1 --- LCX [0/1] light curve exists as graphical
illustration in clx subdirectory
2621-2631 F11.1 s ObsClock1 ? Start time of exposure when source is
within FOV and detector ons
(OBSCLOCK1)
2633-2643 F11.1 s ObsClock2 ? End time of exposure when source is
within FOV and detector ons
(OBSCLOCK2)
2645-2655 A11 "DD-MMM-YYYY" Obs.date1 ? Start time of exposure when source is
within FOV and detector on (OBSDATE1)
2657-2666 A10 "h:m:s" Obs.time1 ? Start time (OBSUT1)
2668-2678 A11 "DD-MMM-YYYY" Obs.date2 ? End time of exposure when source
is within FOV and detector on
(OBSDATE2)
2680-2689 A10 "h:m:s" Obs.time2 ? End time (OBSUT2)
2691-2696 I6 --- --- ? Running number from total detection
run (ID_2RXS)
Note (1): Each source has been attributed an IAU name according to the IAU
conventions. As this is the second ROSAT catalogue of point sources
the prefix 2RXS is given in addition to the coordinate naming convention.
Note (2): Hardness ratio 1 values as calculated from the source counts in the
energy channels A (11-41), B (52-201) by: HR_1=(B-A)/(B+A)
Hardness ratio 2 values as calculated from the source counts in the
energy channels C (52-90), D(91-201) by: HR_2=(D-C)/(D+C)
Note (3): Sub-field detection cell defined in sky coordinates.
Note (4): Screening flag (0=good, not equal to 0 = screening flag set)
Note (5): 1RXS hardness ratio 1 values have been calculated from the source
counts in the energy channels A (11-41), B (52-201) by: HR_1=(B-A)/(B+A)
in 1RXS
Hardness ratio 2 values have been calculated from the source counts in the
energy channels C (52-90), D(91-201) by: HR_2=(D-C)/(D+C) in the 1RXS
Note (6): (cf Note 7 of the Tycho-2 online catalogue description).
Note (7): Tyhco 2 name (c.f. Note 1 of the Tycho-2 online catalogue description)
Note (8): quality flag for background selection for lightcurves and spectra:
0=good, bit 1: sum of CM+CD<0, bit 2: background in masked region
Acknowledgements:
Thomas Boller, bol(at)mpe.mpg.de
Frank Haberl, fwh(at)mpe.mpg.de
Michael Freyberg, mjf(at)mpe.mpg.de
================================================================================
(End) Patricia Vannier [CDS] 23-Mar-2016