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J/A+A/527/A126      2XMMi/SDSS DR7 cross-correlation         (Pineau+, 2011)

Cross-correlation of the 2XMMi catalogue with Data Release 7 of the Sloan Digital Sky Survey. Pineau F.-X., Motch C., Carrera F., Della Ceca R., Derriere S., Michel L., Schwope A., Watson M.G. <Astron. Astrophys. 527, A126 (2011)> =2011A&A...527A.126P (SIMBAD/NED BibCode)
ADC_Keywords: Surveys ; X-ray sources ; Photometry, SDSS ; Cross identifications Keywords: methods: statistical - catalogs - X-rays: general - stars: activity - quasars: general Abstract: The Survey Science Centre of the XMM-Newton satellite released the first incremental version of the 2XMM catalogue in August 2008. Containing more than 220000 X-ray sources, the 2XMMi was at that time the largest catalogue of X-ray sources ever published and thus constitutes an unprecedented resource for studying the high-energy properties of various classes of X-ray emitters such as AGN and stars. Thanks to the high throughput of the EPIC cameras on board XMM-Newton accurate positions, fluxes, and hardness ratios are available for a substantial fraction of the X-ray detections. The advent of the 7th release of the Sloan Digital Sky Survey offers the opportunity to cross-match two major surveys and extend the spectral energy distribution of many 2XMMi sources towards the optical bands. This implies building extensive homogeneous samples with a statistically controlled rate of spurious matches and completeness. We here present a cross-matching algorithm based on the classical likelihood ratio estimator. The method developed has the advantage of providing true probabilities of identifications without resorting to heavy Monte-Carlo simulations. Description: Results of the statistical cross-match based on likelihood ratios between the incremental Second XMM-Newton Serendipitous Source Catalogue (2XMMi) and the Seventh Data Release of the Sloan Digital Sky Survey (SDSS DR7). The cross-match is limited to 2XMMi point-like sources (epextml<4) with a positional error smaller or equal to 5 arcsec, and to SDSS DR7 primary sources. We considered the individual XMM source detection positions and errors on positions available in the XCATDB (http://xcatdb.u-strasbg.fr/2xmmi/home). The table contains 72169 distinct associations for 72171 rows. For each association, the table provides: parameters extracted from the 2XMMi catalogue ; cross-match parameters ; and parameters extracted from both the SDSS DR7 catalogue and CasJobs (http://cas.sdss.org/CasJobs/). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file catalog.dat 3524 72171 2XMMi versus SDSSDR7 cross-match catalog 2XMMivsSDSSDR7.fits 2880 42929 FITS version of the catalog
See also: B/xmm : XMM-Newton Observation Log (XMM-Newton SOC, 2009) IX/37 : XMM-Newton Serendipitous Source Catalogue (1XMM) (XMM-SSC, 2003) IX/40 : XMM-Newton 2nd Inc. Source Cat. (2XMMi) (XMM-SSC, 2008) IX/41 : XMM-Newton Serendipitous Source Catalogue 2XMMi-DR3 (XMM-SSC, 2010) J/A+A/493/339 : XMM-Newton serendipitous Survey. V. (Watson+, 2009) http://cas.sdss.org/CasJobs : SDSS Query / CasJobs Home Page http://xmmssc-www.star.le.ac.uk : XMM Home Page http://www.sdss.org : SDSS Home Page Byte-by-byte Description of file: catalog.dat
Bytes Format Units Label Explanations
1- 10 A10 --- Obsno XMM-Newton observation identifier 12- 14 I3 --- srcNum XMM observation source identifier in Obsno 16- 21 I6 --- srcId [1/221135] XMM unique source identifier 23- 44 A22 --- Name XMM unique source IAU name, 2XMM or 2XMMi JHHMMSS.s+DDMMSS 46- 51 I6 --- detid [1/289033] XMM detection identifier 53- 66 E14.9 deg RAdeg XMM corrected Right Ascension of detection (J2000) 68- 83 E16.11 deg DEdeg XMM corrected Declination of detection (J2000) 85- 99 E15.10 deg GLON XMM corrected galactic longitude of detection 101-115 E15.10 deg GLAT XMM corrected galactic latitude of 1detection 117-128 E12.7 arcsec ePos Statistical 1σ Error on detection position 130-137 E8.3 arcsec sPos XMM estimated systematic 1σ Error on the detection position 139 I1 --- extML [0] XMM likelihood of the detection being extended 141-152 A12 --- PNflag [FT] XMM PN flag (False/True) 154 I1 --- S [0/4] XMM Summary flag of the source (1) 156-166 E11.6 --- Cst ?=- XMM Chi2 probability that the source is constant 168 A1 --- V [FT] XMM flag set to True if this source was detected as variable 170-175 A6 --- PN_Filter XMM PN Filter (Thick, Medium, Thin1 or UNDEF) 177-187 E11.6 mW/m2 PN_1Flux ?=- XMM Flux in 0.2-0.5keV for PN 189-199 E11.6 mW/m2 ePN1Flux ?=- Error on PN_1Flux 201-211 E11.6 mW/m2 PN_2Flux ?=- XMM Flux in 0.5-1.0keV for PN 213-223 E11.6 mW/m2 ePN2Flux ?=- Error on PN_2Flux 225-235 E11.6 mW/m2 PN_3Flux ?=- XMM Flux in 1.0-2.0keV for PN 237-247 E11.6 mW/m2 ePN3Flux ?=- Error on PN_3Flux 249-259 E11.6 mW/m2 PN_4Flux ?=- XMM Flux in 2.0-4.5keV for PN 261-271 E11.6 mW/m2 ePN4Flux ?=- Error on PN_4Flux 273-283 E11.6 mW/m2 PN_5Flux ?=- XMM Flux in 4.5-12.0keV for PN 285-295 E11.6 mW/m2 ePN5Flux ?=- Error on PN_5Flux 297-307 E11.6 mW/m2 PN_8Flux ?=- XMM Flux in 0.2-12.0keV for PN 309-319 E11.6 mW/m2 ePN8Flux ?=- Error on PN_8Flux 321-332 E12.7 --- PN_HR1 ?=- XMM Hardness ratio 1 for PN (2) 334-347 E14.9 --- ePNHR1 ?=- Error on PN_HR1 349-360 E12.7 --- PN_HR2 ?=- XMM Hardness ratio 2 for PN (2) 362-372 E11.6 --- ePNHR2 ?=- Error on PN_HR2 374-385 E12.7 --- PN_HR3 ?=- XMM Hardness ratio 3 for PN (2) 387-397 E11.6 --- ePNHR3 ?=- Error on PN_HR3 399-410 E12.7 --- PN_HR4 ?=- XMM Hardness ratio 4 for PN (2) 412-424 E13.8 --- ePNHR4 ?=- Error on PN_HR4 426-431 A6 --- M1_Filter XMM M1 Filter 433-443 E11.6 mW/m2 M1_1Flux ?=- XMM Flux in 0.2-0.5keV for M1 445-455 E11.6 mW/m2 eM11Flux ?=- Error on M1_1Flux 457-467 E11.6 mW/m2 M1_2Flux ?=- XMM Flux in 0.5-1.0keV for M1 469-479 E11.6 mW/m2 eM12Flux ?=- Error on M1_2Flux 481-491 E11.6 mW/m2 M1_3Flux ?=- XMM Flux in 1.0-2.0keV for M1 493-503 E11.6 mW/m2 eM13Flux ?=- Error on M1_3Flux 505-515 E11.6 mW/m2 M1_4Flux ?=- XMM Flux in 2.0-4.5keV for M1 517-527 E11.6 mW/m2 eM14Flux ?=- Error on M1_4Flux 529-539 E11.6 mW/m2 M1_5Flux ?=- XMM Flux in 4.5-12.0keV for M1 541-551 E11.6 mW/m2 eM15Flux ?=- Error on M1_5Flux 553-563 E11.6 mW/m2 M1_8Flux ?=- XMM Flux in 0.2-12.0keV for M1 565-575 E11.6 mW/m2 eM18Flux ?=- Error on M1_8Flux 577-588 E12.7 --- M1_HR1 ?=- XMM Hardness ratio 1 for M1 (2) 590-600 E11.6 --- eM1HR1 ?=- Error on M1_HR1 602-613 E12.7 --- M1_HR2 ?=- XMM Hardness ratio 2 for M1 (2) 615-625 E11.6 --- eM1HR2 ?=- Error on M1_HR2 627-638 E12.7 --- M1_HR3 ?=- XMM Hardness ratio 3 for M1 (2) 640-650 E11.6 --- eM1HR3 ?=- Error on M1_HR3 652-663 E12.7 --- M1_HR4 ?=- XMM Hardness ratio 4 for M1 (2) 665-678 E14.10 --- eM1HR4 ?=- Error on M1_HR4 680-685 A6 --- M2_Filter XMM M2 Filter 687-697 E11.6 mW/m2 M2_1Flux ?=- XMM Flux in 0.2-0.5keV for M2 699-709 E11.6 mW/m2 eM21Flux ?=- Error on M2_1Flux 711-721 E11.6 mW/m2 M2_2Flux ?=- XMM Flux in 0.5-1.0keV for M2 723-733 E11.6 mW/m2 eM22Flux ?=- Error on M2_2Flux 735-745 E11.6 mW/m2 M2_3Flux ?=- XMM Flux in 1.0-2.0keV for M2 747-757 E11.6 mW/m2 eM23Flux ?=- Error on M2_3Flux 759-769 E11.6 mW/m2 M2_4Flux ?=- XMM Flux in 2.0-4.5keV for M2 771-781 E11.6 mW/m2 eM24Flux ?=- Error on M2_4Flux 783-793 E11.6 mW/m2 M2_5Flux ?=- XMM Flux in 4.5-12.0keV for M2 795-805 E11.6 mW/m2 eM25Flux ?=- Error on M2_5Flux 807-817 E11.6 mW/m2 M2_8Flux ?=- XMM Flux in 0.2-12.0keV for M2 819-829 E11.6 mW/m2 eM28Flux ?=- Error on M2_8Flux 831-842 E12.7 --- M2_HR1 ?=- XMM Hardness ratio 1 for M2 (2) 844-854 E11.6 --- eM2HR1 ?=- Error on M2_HR1 856-867 E12.7 --- M2_HR2 ?=- XMM Hardness ratio 2 for M2 (2) 869-879 E11.6 --- eM2HR2 ?=- Error on M2_HR2 881-892 E12.7 --- M2_HR3 ?=- XMM Hardness ratio 3 for M2 (2) 894-904 E11.6 --- eM2HR3 ?=- Error on M2_HR3 906-917 E12.7 --- M2_HR4 ?=- XMM Hardness ratio 4 for M2 (2) 919-932 E14.9 --- eM2HR4 ?=- Error on M2_HR4 934-951 E18.14 deg scRAdeg XMM weighted mean Right Ascension 953-971 E19.15 deg scDEdeg XMM weighted mean Declination 973-983 E11.6 arcsec e_scPos XMM Error of the weighted mean position 985-996 E12.6 mW/m2 scep_1Flux XMM band 1 weighted mean flux 998-1008 E11.6 mW/m2 escep1Flux Error on scep_1Flux 1010-1020 E11.6 mW/m2 scep_2Flux XMM band 2 weighted mean flux 1022-1032 E11.6 mW/m2 escep2Flux Error on scep_2Flux 1034-1044 E11.6 mW/m2 scep_3Flux XMM band 3 weighted mean flux 1046-1056 E11.6 mW/m2 escep3Flux Error on scep_3Flux 1058-1068 E11.6 mW/m2 scep_4Flux XMM band 4 weighted mean flux 1070-1080 E11.6 mW/m2 escep4Flux Error on scep_4Flux 1082-1092 E11.6 mW/m2 scep_5Flux XMM band 5 weighted mean flux 1094-1104 E11.6 mW/m2 escep5Flux Error on scep_5Flux 1106-1116 E11.6 mW/m2 scep_8Flux XMM band 8 weighted mean flux 1118-1128 E11.6 mW/m2 escep8Flux Error on scep_8Flux 1130-1140 E11.6 mW/m2 scep_9Flux XMM band 9 weighted mean flux 1142-1152 E11.6 mW/m2 escep9Flux Error on scep_9Flux 1154-1165 E12.7 --- scHR1 ?=- XMM weighted mean hardness ratio 1 (2) 1167-1180 E14.9 --- e_scHR1 ?=- Error on scHR1 1182-1193 E12.7 --- scHR2 ?=- XMM weighted mean hardness ratio 2 (2) 1195-1205 E11.6 --- e_scHR2 ?=- Error on scHR2 1207-1218 E12.7 --- scHR3 ?=- XMM weighted mean hardness ratio 3 (2) 1220-1230 E11.6 --- e_scHR3 ?=- Error on scHR3 1232-1243 E12.7 --- scHR4 ?=- XMM weighted mean hardness ratio 4 (2) 1245-1255 E11.6 --- e_scHR4 ?=- Error on scHR4 1257-1269 E13.9 --- scdetML XMM maximum of the likelihoods of all detections of this source 1271-1282 E12.7 --- scextML XMM average of the extent likelihoods of all detections of this source 1284-1294 E11.6 --- scCst ?=- XMM minimum value of the EPIC probabilities in each detection 1296 A1 --- scV [FT] XMM VAR_FLAG of the most variable detection of this source 1298 I1 --- scS [0/4] XMM flag taken to be the worst flag of all detections of this source 1300-1301 I2 --- Nd XMM number of detections of the unique source 1303 I1 --- f1 [1/3] Release source added (4) 1305 I1 --- fm [0/1] Multiplicity flag (5) 1307-1324 E18.13 --- jproba_id XMatch probability 1326-1343 E18.13 arcsec jd_arcsec Angular distance between XMM and SDSS source 1345-1362 E18.13 arcsec jd_sigma Sigma distance between XMM and SDSS source 1364-1381 E18.13 --- jrho_umag Estimated cumulative local density of SDSS sources in u 1383-1400 E18.13 --- jrho_gmag Estimated cumulative local density of SDSS sources in g 1402-1419 E18.13 --- jrho_rmag Estimated cumulative local density of SDSS sources in r 1421-1438 E18.13 --- jrho_imag Estimated cumulative local density of SDSS sources in i 1440-1457 E18.13 --- jrho_zmag Estimated cumulative local density of SDSS sources in z 1459-1476 E18.13 --- jlr_umag Likelihood ratio in u band 1478-1495 E18.13 --- jlr_gmag Likelihood ratio in g band 1497-1514 E18.13 --- jlr_rmag Likelihood ratio in r band 1516-1533 E18.13 --- jlr_imag Likelihood ratio in i band 1535-1552 E18.13 --- jlr_zmag Likelihood ratio in z band 1554-1571 E18.13 --- jrel_umag Reliability in u band 1573-1590 E18.13 --- jrel_gmag Reliability in g band 1592-1609 E18.13 --- jrel_rmag Reliability in r band 1611-1628 E18.13 --- jrel_imag Reliability in i band 1630-1647 E18.13 --- jrel_zmag Reliability in z band --------------------------SDSS data--------------------------------------------- 1649-1666 A18 --- SDSS SDSS unique object identifier 1668-1685 E18.13 deg RASdeg SDSS Right Ascension 1687-1705 E19.14 deg DESdeg SDSS Declination 1707-1717 E11.6 arcsec e_RASdeg SDSS mean Error on the Right Ascension 1719-1729 E11.6 arcsec e_DESdeg SDSS mean Error on the Declination 1731-1742 E12.7 --- ccPos SDSS correlation between position Errors 1744-1755 E12.7 mag umag SDSS Model magnitude in u filter 1757-1768 E12.7 mag e_umag ?=-9.99900E+03 Mean Error on umag 1770-1781 E12.7 mag gmag SDSS Model magnitude in g filter 1783-1794 E12.7 mag e_gmag ?=-9.99900E+03 Mean Error on gmag 1796-1807 E12.7 mag rmag SDSS Model magnitude in r filter 1809-1820 E12.7 mag e_rmag ?=-9.99900E+03 Mean Error on rmag 1822-1833 E12.7 mag imag SDSS Model magnitude in i filter 1835-1846 E12.7 mag e_imag ?=-9.99900E+03 Mean Error on imag 1848-1859 E12.7 mag zmag SDSS Model magnitude in z filter 1861-1872 E12.7 mag e_zmag ?=-9.99900E+03 Mean Error on zmag 1874 I1 --- Class SDSS class parameter (3) 1876 I1 --- spClass [0/6]? SDSS spectral class parameter (6) 1878-1889 E12.7 --- zsp ?=- SDSS spectral redshift 1891-1901 E11.6 --- e_zsp ?=- Error on zsp 1903-1905 A3 --- spType SDSS Stellar Type Classification (UW) 1907-1909 A3 --- spTypea SDSS Stellar Type Classification (SSPP) 1911-1913 A3 --- SType SEGUE or SDSS target type abbrev 1915 A1 --- good_qual [FT] No SDSS flag set, all mags < 22.2 1917 A1 --- Sat [FT] Object contains one or more saturated pixels (SATURATED) (7) 1919 A1 --- Blend [FT] Object had multiple peaks detected within it (BLEND) (7) 1921 A1 --- PSFFlux [FT] Greater than 20% of the PSF flux is from interpolated pixels (PSFFLUXINTERP) (7) 1923 A1 --- Deblend [FT] A MOVED object that the deblender treated as moving (DEBLENDEDASMOVING)(7) 1925 A1 --- Interp [FT] Object center is close to at least one interpolated pixel (INTERP_CENTER)(7) 1927 A1 --- Edge [FT] Object is too close to edge of frame (EDGE) (7) 1929 A1 --- Satur [FT] Object center is close to at least one saturated pixel (SATUR_CENTER) (7) 1931-1942 E12.7 --- ha_ct ?=- SDSS Hα (6565) line continuum 1944-1955 E12.7 0.1nm ha_wv ?=- SDSS Hα (6565) line center inlab frame 1957-1968 E12.7 0.1nm ehawv ?=- Error on ha_wv 1970-1981 E12.7 0.1nm ha_sg ?=- SDSS σ of fitted gaussian on Hα (6565) line 1983-1994 E12.7 0.1nm ehasg ?=- Error on ha_sg 1996-2008 E13.7 0.1nm ha_ew ?=- SDSS Hα (6565) line equivalent width 2010-2021 E12.6 0.1nm ehaew ?=- Error on ha_ew 2023-2035 E13.7 --- ha_z ?=- SDSS redshift of line Hα (6565) 2037-2049 E13.7 --- ha_h ?=- SDSS height of Hα (6565) line gaussian 2051-2062 E12.7 --- ehah ?=- Error on ha_h 2064-2075 E12.7 --- hb_ct ?=- SDSS Hβ (4863) line continuum 2077-2088 E12.7 0.1nm hb_wv ?=- SDSS Hβ (4863) line center inlab frame 2090-2101 E12.7 0.1nm ehbwv ?=- Error on hb_wv 2103-2114 E12.7 0.1nm hb_sg ?=- SDSS σ of fitted gaussian on Hβ (4863) line 2116-2127 E12.7 0.1nm ehbsg ?=- Error on hb_sg 2129-2141 E13.8 0.1nm hb_ew ?=- SDSS Hβ (4863) line equivalent width 2143-2154 E12.7 0.1nm ehbew ?=- Error on hb_ew 2156-2168 E13.8 --- hb_z ?=- SDSS redshift of line Hβ (4863) 2170-2182 E13.8 --- hb_h ?=- SDSS height of Hβ (4863) line gaussian 2184-2195 E12.7 --- ehbh ?=- Error on hb_h 2197-2208 E12.7 --- n2_ct ?=- SDSS NII (6585) line continuum 2210-2221 E12.7 0.1nm n2_wv ?=- SDSS NII (6585) line center inlab frame 2223-2234 E12.7 0.1nm en2wv ?=- Error on n2_wv 2236-2247 E12.7 0.1nm n2_sg ?=- SDSS σ of fitted gaussian on NII (6585) line 2249-2260 E12.7 0.1nm en2sg ?=- Error on n2_sg 2262-2274 E13.8 0.1nm n2_ew ?=- SDSS NII (6585) line equivalent width 2276-2287 E12.7 0.1nm en2ew ?=- Error on n2_ew 2289-2301 E13.8 --- n2_z ?=- SDSS redshift of line NII (6585) 2303-2315 E13.8 --- n2_h ?=- SDSS height of NII (6585) line gaussian 2317-2328 E12.7 --- en2h ?=- Error on n2_h 2330-2342 E13.8 --- o3l_ct ?=- SDSS OIII (4960) line continuum 2344-2355 E12.7 0.1nm o3l_wv ?=- SDSS OIII (4960) line center inlab frame 2357-2368 E12.7 0.1nm eo3lwv ?=- Error on o3l_wv 2370-2381 E12.7 0.1nm o3l_sg ?=- SDSS σ of fitted gaussian on OIII (4960) line 2383-2394 E12.7 0.1nm eo3lsg ?=- Error on o3l_sg 2396-2408 E13.8 0.1nm o3l_ew ?=- SDSS OIII (4960) line equivalent width 2410-2421 E12.7 0.1nm eo3lew ?=- Error on o3l_ew 2423-2435 E13.8 --- o3l_z ?=- SDSS redshift of line o3l 2437-2449 E13.8 --- o3l_h ?=- SDSS height of OIII (4960) 2451-2462 E12.7 --- eo3lh ?=- Error on o3l_h 2464-2475 E12.7 --- o3h_ct ?=- SDSS OIII (5008) line continuum 2477-2488 E12.7 0.1nm o3h_wv ?=- SDSS OIII (5008) line center inlab frame 2490-2501 E12.7 0.1nm eo3hwv ?=- Error on o3h line center 2503-2514 E12.7 0.1nm o3h_sg ?=- SDSS σ of fitted gaussian on OIII (5008) line 2516-2527 E12.7 0.1nm eo3hsg ?=- Error on o3h_sg 2529-2541 E13.8 0.1nm o3h_ew ?=- SDSS OIII (5008) line equivalent width 2543-2554 E12.7 0.1nm eo3hew ?=- Error on o3h_ew 2556-2568 E13.8 --- o3h_z ?=- SDSS redshift of line o3h 2570-2582 E13.8 --- o3h_h ?=- SDSS height of OIII (5008) line gaussian 2584-2595 E12.7 --- eo3hh ?=- Error on o3h_h 2597-2608 E12.7 --- o2l_ct ?=- SDSS OII (3727) line continuum 2610-2621 E12.7 0.1nm o2l_wv ?=- SDSS OII (3727) line center inlab frame 2623-2634 E12.7 0.1nm eo2lwv ?=- Error on o2l_wv 2636-2647 E12.7 0.1nm o2l_sg ?=- SDSS σ of fitted gaussian on OII (3727) line 2649-2660 E12.7 0.1nm eo2lsg ?=- Error on o2l_sg 2662-2674 E13.8 0.1nm o2l_ew ?=- SDSS OII (3727) line equivalent width 2676-2687 E12.7 0.1nm eo2lew ?=- Error on o2l_ew 2689-2701 E13.8 --- o2l_z ?=- SDSS redshift of line o2l 2703-2715 E13.8 --- o2l_h ?=- SDSS height of OII (3727) line gaussian 2717-2728 E12.7 --- eo2lh ?=- Error on o2l_h 2730-2741 E12.7 --- o2h_ct ?=- SDSS o2h line continuum 2743-2754 E12.7 0.1nm o2h_wv ?=- SDSS OII (3730) line center inlab frame 2756-2767 E12.7 0.1nm eo2hwv ?=- Error on o2h_wv 2769-2780 E12.7 0.1nm o2h_sg ?=- SDSS σ of fitted gaussian on OII (3730) line 2782-2793 E12.7 0.1nm eo2hsg ?=- Error on o2h_sg 2795-2807 E13.8 0.1nm o2h_ew ?=- SDSS OII (3730) line equivalent width 2809-2820 E12.7 0.1nm eo2hew ?=- Error on o2h_ew 2822-2833 E12.7 --- o2h_z ?=- SDSS redshift of line o2h 2835-2847 E13.8 --- o2h_h ?=- SDSS height of OII (3730) line gaussian 2849-2860 E12.7 --- eo2hh ?=- Error on o2h_h 2862-2874 E13.8 --- o1_ct ?=- SDSS OI (6302) line continuum 2876-2887 E12.7 0.1nm o1_wv ?=- SDSS OI (6302) line center inlab frame 2889-2900 E12.7 0.1nm eo1wv ?=- Error on o1_wv 2902-2913 E12.7 0.1nm o1_sg ?=- SDSS σ of fitted gaussian on OI (6302) line 2915-2926 E12.7 0.1nm eo1sg ?=- Error on o1_sg 2928-2940 E13.8 0.1nm o1_ew ?=- SDSS OI (6302) line equivalent width 2942-2953 E12.7 0.1nm eo1ew ?=- Error on o1_ew 2955-2967 E13.8 --- o1_z ?=- SDSS redshift of line o1 2969-2981 E13.8 --- o1_h ?=- SDSS height of OI (6302) line gaussian 2983-2994 E12.7 --- eo1h ?=- Error on o1_h 2996-3008 E13.8 --- m2_ct ?=- SDSS MgII (2799) line continuum 3010-3021 E12.7 0.1nm m2_wv ?=- SDSS MgII (2799) line center inlab frame 3023-3034 E12.7 0.1nm em2wv ?=- Error on m2_wv 3036-3047 E12.7 0.1nm m2_sg ?=- SDSS σ of fitted gaussian on MgII (2799) line 3049-3060 E12.7 0.1nm em2sg ?=- Error on m2_sg 3062-3074 E13.8 0.1nm m2_ew ?=- SDSS MgII (2799) line equivalent width 3076-3087 E12.7 0.1nm em2ew ?=- Error on m2_ew 3089-3100 E12.7 --- m2_z ?=- SDSS redshift of line MgII (2799) 3102-3114 E13.8 --- m2_h ?=- SDSS height of MgII (2799) line gaussian 3116-3127 E12.7 --- em2h ?=- Error on m2_h 3129-3140 E12.7 --- c3_ct ?=- SDSS CIII (1909) line continuum 3142-3153 E12.7 0.1nm c3_wv ?=- SDSS CIII (1909) line center inlab frame 3155-3166 E12.7 0.1nm ec3wv ?=- Error on c3_wv 3168-3179 E12.7 0.1nm c3_sg ?=- SDSS σ of fitted gaussian on CIII (1909) line 3181-3192 E12.7 0.1nm ec3sg ?=- Error on c3_sg 3194-3206 E13.8 0.1nm c3_ew ?=- SDSS CIII (1909) line equivalent width 3208-3219 E12.7 0.1nm ec3ew ?=- Error on c3_ew 3221-3232 E12.7 --- c3_z ?=- SDSS redshift of line c3 3234-3246 E13.8 --- c3_h ?=- SDSS height of CIII (1909) line gaussian 3248-3259 E12.7 --- ec3h ?=- Error on c3_h 3261-3272 E12.7 --- c4_ct ?=- SDSS CIV (1549) line continuum 3274-3285 E12.7 0.1nm c4_wv ?=- SDSS CIV (1549) line center inlab frame 3287-3298 E12.7 0.1nm ec4wv ?=- Error on c4_wv 3300-3311 E12.7 0.1nm c4_sg ?=- SDSS σ of fitted gaussian on CIV (1549) line 3313-3324 E12.7 0.1nm ec4sg ?=- Error on c4_sg 3326-3338 E13.8 0.1nm c4_ew ?=- SDSS CIV (1549) line equivalent width 3340-3351 E12.7 0.1nm ec4ew ?=- Error on c4_ew 3353-3364 E12.7 --- c4_z ?=- SDSS redshift of line c4 3366-3378 E13.8 --- c4_h ?=- SDSS height of CIV (1549) line gaussian 3380-3391 E12.7 --- ec4h ?=- Error on c4_h 3393-3404 E12.7 --- la_ct ?=- SDSS Lyα (1216) line continuum 3406-3418 E13.8 0.1nm la_wv ?=- SDSS Lyα (1216) line center inlab frame 3420-3431 E12.7 0.1nm elawv ?=- Error on la_wv 3433-3444 E12.7 0.1nm la_sg ?=- SDSS σ of fitted gaussian on Lyα (1216) line 3446-3457 E12.7 0.1nm elasg ?=- Error on la_sg 3459-3471 E13.8 0.1nm la_ew ?=- SDSS Lyα (1216) line equivalent width 3473-3484 E12.7 0.1nm elaew ?=- Error on la_ew 3486-3497 E12.7 --- la_z ?=- SDSS redshift of line la 3499-3511 E13.8 --- la_h ?=- SDSS height of Lyα (1216) line gaussian 3513-3524 E12.7 --- elah ?=- Error on la_h
Note (1): 2XMMi sumflag as follows: 0 = good 1 = source parameters may be affected 2 = possibly spurious 3 = located in a area where spurious detection may occur 4 = located in a area where spurious detection may occur and possibly spurious Note (2): 2XMMi hardness ratios defined as: 1 = bands 1 & 2 2 = bands 2 & 3 3 = bands 3 & 4 4 = bands 4 & 5 2XMMi Bands defined as: 1 = 0.2-0.5keV 2 = 0.5-1.0keV 3 = 1.0-2.0keV 4 = 2.0-4.5keV 5 = 4.5-12.0keV 8 = 0.2-12.0keV 9 = 0.5-4.5keV Note (3): Type (class) from SDSS is numbered as follows: 0 = Unknown: Object type is not known 3 = Galaxy: An extended object composed of many stars and other matter 6 = Star: A a self-luminous gaseous celestial body 8 = Sky: Blank sky spectrogram (no objects in this arcsecond area) Note (4): Flag (sc_chflag1) as follows: 1 = a 2XMM source with unchanged SC parameters 2 = a 2XMM source with changed SC parameters 3 = a new source Note (5): Flag (sc_chflag2) as follows: 0 = depends on f1 (sc_chflag1): * if f1=1, a unique source present in 2XMM remains unchanged in 2XMMi when comprised only of the same detections as in 2XMM. * if f1=2, one or more new detections in 2XMMi can, by virtue of their spatial separation, simply associate with the group of detections from a unique source in 2XMM. * if f1=3, new detections in 2XMMi that do not associate with a unique source in 2XMM form new unique sources in 2XMMi with SRCID values ≥191871. 1 = with f1=2, Detections that formed a source in 2XMM have been regrouped, that is, while a source in 2XMMi might map to one in 2XMM (having the same source ID and IAU name) it may have lost detections it had in 2XMM and it may have gained old detections from a different 2XMM source or new detections. Note (6): Spectral class as follows: 0 = Spectrum not classifiable (zConf<0.25) 1 = Spectrum of a star 2 = Spectrum of a galaxy 3 = Spectrum of a quasi-stellar object 4 = Spectrum of a high-redshift quasar (z>2.3), whose redshift is confirmed by a Ly-alpha estimator 5 = Spectrum of blank sky 6 = Star dominated by molecular bands M or later 7 = Emission line galaxy (placeholder) Note (7): SDSS flags
Acknowledgements: Francois-Xavier Pineau, francois-xavier.pineau(at)astro.unistra.fr
(End) Patricia Vannier [CDS] 17-Jan-2011
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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