1. Find period for SGR 1627-41

2. Outline SGR 1627-41 SGR 1627-41 RXTE(Rossi X-ray Timing Explorer) RXTE(Rossi X-ray Timing Explorer) Data Reduction and Analysis Data Reduction and Analysis Result Result

3. SGR 1627-41 First observation: Ulysses on 1998 June 17 RA, DEC 16 35 52.00, -47 35 14.0 J2000 RA, DEC 16 35 52.00, -47 35 14.0 J2000 associate with nearby SNR : SNR G337.0-0.1 associate with nearby SNR : SNR G337.0-0.1

4. SGR first giant P(s) quiescence P(s) P ’ super-Eddington first giant P(s) quiescence P(s) P ’ super-Eddington observe flare? (erg/s) (10-11s/s) burst 18061900052616271801 1979 no ?? 2*1035 7.74 2.8 10^3X 1979 yes 5.16 3*1034 5.16 6.1 10^3X 1979 yes 8 1036 ?? ?? 2*10^4X 1998 no ?? 1035 ?? ?? 4*10^5X 1997 no ?? ?? ?? ?? ??

5. HEARSARC Browse Search Results : Target id max status start time end time num ober PI Lname 70137-03 accepted 1 WOODS 80149-03 accepted 1 WOODS 80150-02 accepted 1 IBRAHIM 50145-01 archived 2001-08-10 2001-08-11 3 IBRAHIM 15:25:55.2 02:09:48.1

6. RXTE RXTE(Rossi X-ray Timing Explorer) RXTE(Rossi X-ray Timing Explorer) Launch date: Dec. 30, 1995 Launch date: Dec. 30, 1995 Delta II rocket Delta II rocket Orbit: low-earth orbit (about 600 km and 23 deg inclination) Orbit: low-earth orbit (about 600 km and 23 deg inclination) Weight: 3,045 kg Weight: 3,045 kg The RXTE is maneuverable (6 deg/minute) The RXTE is maneuverable (6 deg/minute)

9. Instrument PCA (Proportional Counter Array) PCA (Proportional Counter Array) HEXTE (The High Energy X-ray Timing Experiment) HEXTE (The High Energy X-ray Timing Experiment) ASM (All-Sky Monitor) ASM (All-Sky Monitor) EDS (Experiment Data System) EDS (Experiment Data System)

10. PCA The PCA is an array of five proportional counters with a total collecting area of 6500 square cm. The instrumental properties are: The PCA is an array of five proportional counters with a total collecting area of 6500 square cm. The instrumental properties are: Energy range: 2 - 60 keV Energy range: 2 - 60 keV Energy resolution: < 18% at 6 keV Energy resolution: < 18% at 6 keV Time resolution: 1 microsec Time resolution: 1 microsec Spatial resolution: collimator with 1 degree FWHM Spatial resolution: collimator with 1 degree FWHM Detectors: 5 proportional counters Detectors: 5 proportional counters Collecting area: 6500 square cm Collecting area: 6500 square cm Layers: 1 Propane veto; 3 Xenon, each split into two; 1 Xenon veto layer Layers: 1 Propane veto; 3 Xenon, each split into two; 1 Xenon veto layer Sensitivity: 0.1 mCrab Sensitivity: 0.1 mCrab Background: 2 mCrab Background: 2 mCrab Events detected by the PCA will be processed on board by the EDS before insertion into the telemetry stream Events detected by the PCA will be processed on board by the EDS before insertion into the telemetry streamEDS

12. Download Data [50145-01] [50145-01] [50145-01-00-00] [50145-01-00-00] [50145-01-00-00A] [50145-01-00-00A] [50145-01-00-00Z] [50145-01-00-00Z] [50145-01-00-01] [50145-01-00-01] [50145-01-00-010] [50145-01-00-010] [50145-01-00-01A] [50145-01-00-01A] [50145-01-00-01Z] [50145-01-00-01Z] [50145-01-00-02] [50145-01-00-02] [50145-01-00-02A] [50145-01-00-02A] [50145-01-00-02Z] [50145-01-00-02Z]

13. [50145-01-00-02] [50145-01-00-02] 3.944k sec 3.944k sec 637k events 637k events

14. Data reduction Use XDF to find your Event-mode datafiles Use XDF to find your Event-mode datafiles Convert GoodXenon1&2 into FITS Convert GoodXenon1&2 into FITS Examine the filter file Examine the filter file Create a bitmask Create a bitmask Extract a light curve Extract a light curve Correct for deadtime Correct for deadtime

15. Use XDF to find your Event-mode datafiles >XDF >put GoodXenon1_xx, GoodXenon2_xx >make file list ==>fits_files.xdf

16. Convert GoodXenon1&2 into FITS >make_se>fits_files.xdf==>event_gx0

17. Examine the filter file PCUn_ON PCUn_ON NUM_PCU_ON NUM_PCU_ON ELV ELV OFFSET OFFSET TIME_SINCE_SAA TIME_SINCE_SAA ELECTRONn ELECTRONn

19. Create a bitmask >sefilter M-token [M[1]{1}]> E[VPR]>nD[0:4]{3}>nE[0:63]{6}>1,2 ==>event_gx0.bit, event_gx0.fits ==>event_gx0.bit, event_gx0.fits

20. Extract a light curve Correct for deadtime the dead time per event is approximately 10 microseconds for good xenon, propane and coincident events the dead time per event is approximately 10 microseconds for good xenon, propane and coincident events => it need not to do deadtime correction, when count rates it need not to do deadtime correction, when count rates << 10^5 count/sec

21. Data Analysis >faxbary>powspec Newbin Time or negative Rebinning>-N Number of Newbins/Interval>N1 Number of Interval/Frame>N2 Rebin Results? (>1 Const rebin, Rebin Results? (>1 Const rebin,

22. >efsearchperiod>Phasebins/Period> Number of Newbins/Interval>INDEF Resolution for period search>0.00001 Number of Periods to search>

23. Powspec Newbin Time>-100 # of Newbins/Interval>65536 # of Interval/Frame>521 Rebin >0 PLT>error on

24. Powspec Newbin Time>-100 # of Newbins/Interval>65536 # of Interval/Frame>521 Rebin >0 PLT>error off

25. Powspec Newbin Time>-100 # of Newbins/Interval>65536 # of Interval/Frame>521 Rebin >-1.01 PLT>error on

26. Powspec Newbin Time>-1000000 # of Newbins/Interval>4096 # of Interval/Frame>1 Rebin >0 PLT>error on

27. Powspec Newbin Time>-1000000 # of Newbins/Interval>4096 # of Interval/Frame>1 Rebin >0 PLT>error off

28. Powspec Newbin Time>-1000000 # of Newbins/Interval>4096 # of Interval/Frame>1 Rebin >0 PLT>error on

29. Powspec Newbin Time>-1000000 # of Newbins/Interval>4096 # of Interval/Frame>1 Rebin >0 PLT>error off

30. Powspec Newbin Time>-1000000 # of Newbins/Interval>512 # of Interval/Frame>7 Rebin >0 PLT>error on

31. Powspec Newbin Time>-1000000 # of Newbins/Interval>512 # of Interval/Frame>7 Rebin >0 PLT>error off

32. Powspec Newbin Time>-100 # of Newbins/Interval>512 # of Interval/Frame>7 Rebin >0 PLT>error off

33. Efsearch period>12.84 Phasebins/Period>20 # of Newbins/Interval>INDEF Resolution >0.00001 # of Periods to search>1000