1. X-ray sky survey of bright, serendipitous sources with 2XMMi at the AIP Speaker: Alexander Kolodzig Origin: Humboldt-Uni Berlin, Germany Institute:AIP (Astronomical Institute Potsdam), Potsdam, Germany Tutor: Axel Schwope ESAC Summer Alumni Trainee Meeting 2009

2. The 2XMMi-Catalog 2XMMi = The incremental second XMM-Newton serendipitous source catalogue –largest X-ray source catalogue (2009) 4117XMM-Newton observations (2000 – 2008) – each field is visually screened ~1.0%sky area covered independently 289083rows of X-ray detections 221012unique X-ray sources 300columns of information per detection 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig2

3. selection conditions (among others): –inspired by Della Ceca et al. (2004) –bright sources: SOFT-Band [0.5 - 4.5 keV] –Rate> 0.01 counts/secLikelihood> 18 HARD-Band [4.5 -12.0 keV] –Rate> 0.002 counts/secLikelihood> 12 –serendipitous sources just point sources off axis angle ≥ 3 arcmin  no center of the observation field just certain Observation Field Classifications 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig3 source selection

4. matching with the catalogs: 1. SDSS (Sloan Digital Sky Survey) Data Release 6 2. BSS (XMM-Newton Bright Source Sample, Della Ceca et al. (2004)) –similar survey but of the BSS with 400 sources identified 3. NED (NASA/IPAC Extragalactic Database) 4. SIMBAD –identify possible optical counterparts add information of: –optical magnitude –red shift –source type 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig4 source matching

5. 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig5 SOFT-Band selection

6. 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig6 SOFT-Band selection

7. 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig7 HARD-Band selection

8. 2XMMi-Catalog (in ecliptic coordinates) 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig8 X-ray sky map

9. SOFT-Band (in ecliptic coordinates) 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig9 sky map of identified sources

10. HARD-Band (in ecliptic coordinates) 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig10 sky map of identified sources

11. 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig11 distribution of known source types

12. 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig12 distribution of known source types

13. SOFT-Band (in ecliptic coordinates) 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig13 sky map of known source types

14. HARD-Band (in ecliptic coordinates) 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig14 sky map of known source types

15. ratio: X-ray flux / optical flux SOFT-Band HARD-Band 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig15 comparison of stars, galaxies & QSO’s

16. optical flux [mag] vs. galactic latitude [deg] 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig16 comparison of stars, galaxies & QSO’s

17. optical flux [mag] vs. galactic latitude [deg] 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig17 comparison of stars, galaxies & QSO’s

18. optical flux [mag] vs. red shift [log(z)] 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig18 comparison of stars, galaxies & QSO’s

19. optical flux [mag] vs. red shift [log(z)] 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig19 comparison of stars, galaxies & QSO’s

20. –compare optical type and X-ray source identify of additional or wrong optical counterparts –development of automatic type-identifying method for X-ray bright sources –new list of unknown, maybe interesting X-ray sources  characterisation of the X-ray sky 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig20 further applications

21. Thank You For Your Attention! Contributions or Questions? e-mail: alex_kolo@gmx.de

22. Backup - Slides

23. The 2XMMi-Catalog 2XMMi-Catalog: –constructed by SSC (XMM-Newton Survey Science Centre) –serendipitous: found by coincidence 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig23

24. 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig24 XMM-Newton Observatory

25. factsheet : –ESA Satellite, launched 1999 –most sensitive X-ray telescope (so far) –3 independent X-ray cameras (PN, MOS1, MOS2) energy range:0.15 - 15 keV field of view:0.5 degree –2 X-ray reflection grating spectrometers (RGS) –1 independent optical/UV monitor (OM) simultaneous longtime observations in x-ray and optical 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig25 XMM-Newton Observatory

26. 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig26 XMM-Newton Observatory

27. my tasks: 1. selecting the “bright, serendipitous sources” 2. matching with other catalogs 3. statistics 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig27 Task - Overview

28. selection-conditions (among others): –serendipitous sources: just point sources Offaxis Angel ≥ 3 arcmin –no detection from the center of the observation field Observation Field Classification: –f = all detections are potential target –n = the target was not detected or in the field 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig28 1. Selecting

29. Selection-Conditions: –OBS_CLASS < 4 Quality classification of the whole observation, <10% has been flagged –EP_EXTENT < 6 arsec extent radius of a source detected, < 6" = point-source –M1,M2,PN_SubMode= “FullWindow/ExtentedWindow” –TSERIES = True(has Light-Curve) –SPECTRA = True(has Spectra) –SUM_FLAG = 0 summary flag of the source is derived from the EPIC flag, 0 = “none of the flags was set” –M2_OFFAX ≥ 3 arcmin, ≤ 13 arcmin  just serendipitous sources –RATE and Likelihood for each BAND of the M2-Camera SOFT: >0.01 counts/sec,Likelihood >18 HARD: >0.002 counts/sec,Likelihood >12 –FIELD_CLASS: n,f  just serendipitous sources f - 'field', that is, all detections are potential target n - the target was not detected or in the field, whole field is serendipitous 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig29

30. 1. Selecting Data mainly from EPIC MOS2-Camera: –explained by the paper: http://xmmssc-www.star.le.ac.uk/XID/XMMBSDellaCeca04.pdf –detector pattern simplifies the analysis of the field e.g. object source target is fully contained in the central chip –it has the best PSF –gaps between the EPIC MOS chips are narrower –sensitivity with the bright sources isn’t important 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig30

31. Matching: –matching with coordinates (RA & DEC) –error-radius: 3 arcsec possible identification of wrong optical counterparts –Matching-Tool: “STILTS” (script-version of TOPCAT) –purpose: identify possible optical counterparts add Information of: –optical magnitude –red shift –source type 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig31 2. Matching

32. matched with the following catalogs: 1. SDSS (Sloan Digital Sky Survey) Data Release 6 – 62.435 sources (with known & unknown source types) –pre-matched catalog with 2XMMi 2. BSS (XMM-Newton Bright Source Sample, from SSC) – 400 sources –similar but smaller survey of 2XMMi 3. NED (NASA/IPAC Extragalactic Database) – 163 million sources (with known & unknown source types) –Data-Extraction difficult 4. SIMBAD – 4.6 million sources 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig32 2. Matching

33. Plot: normalized with the circle area 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig33 3. Statistics offaxis angel distribution

34. 3. Statistics Results: Number of Sources SOFTHARD*Description 933 (0,4%) 217 (0,1%) serendipitous bright sources 468 (50%) 121 (56%) identify sources and known type 128 (14%) 23 (11%) identify sources but unknown type 337 (36%) 73 (34%) unknown sources (so far) *Hard-Band without “detections” which appear as well in the Soft-Band 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig34

35. 3. Statistics Results: Number of Det./Src. SOFTHARDStage 31711132Det.: without Field-Class 1104543/234*Det.: total Selection 933473/217*Src.: total Selection 0.42%0.21%/0.10*%from now just source-numbers ??*identify with SDSS ?(?)?*(?*)identify with BSS (additional) ?(?)?*(?*)identify with NED (additional) ? (?%) ?* (?%) identify sources (known & unknown type) ? (?%) ?* (?%) unknown sources (so far) *Hard-Band without “detections” which appear as well in the Soft-Band 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig35

36. 2XMMi-Catalog (in ecliptic coordinates) 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig36 X-ray sky map

37. X-ray flux [log(erg/(cm²  s))] vs. red shift [log(z)] 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig37 comparison of stars, galaxies & QSO’s

38. red shift [log(z)] vs. galactic latitude [deg] 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig38 comparison of stars, galaxies & QSO’s

39. Overview 1.? 2.? 3.? 21.07.20092XMMi-Survey of bright sources at AIP - Alexander Kolodzig39