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Review of 2XMMp data products
Anja Schröder, Univ of Leicester, UKJohn Pye, Univ of Leicester, UK
List of 2XMMp data products
• EPIC images and exposure maps: – bands 1 – 5 and band 8 (total band)
• EPIC source time series – fits file and pdf plot
• EPIC source spectra– fits source and background spectra– arf file– pdf plots
• ACDS finding charts• Catalogue thumbnails and location
images• Catalogue source summary html pages
EPIC Source Specific Products (SSP)
SSP extraction: *PNS003SRCREG0001.ASC
src: r = 28”
bgd: 60” ≤ r ≤ 180”
exclude sources from background:
DET_ML > 15 with r = 60”
EPIC spectrum products
• FITS file with grouped source spectrum [especget, grppha]:
P<obsid><exp>SRSPEC0<jkl>.FIT
• FITS file with background spectrum [especget]: P<obsid><exp>BGSPEC0<jkl>.FIT
• FITS file with source ARF [especget]: P<obsid><exp>SRCARF0<jkl>.FIT
• Spectral plot [XSPEC]: P<obsid><exp>SPCPLT0<jkl>.PDF
• Canned RMFs available at SOC webside (-> keyword)
EPIC source spectrum plots (pdf)
PN MOS1 MOS2
EPIC - time series products
• FITS file with corrected TS for the source (minus background), background TS, FRACEXP and variability keywords [lccorr, ekstest]:
P<obsid><exp>SRCTSR8<jkl>.FIT• Graphics plot (source TS, background TS, fracexp
and flare TS) [elcplot]: P<obsid><exp>STSPLT8<jkl>.PDF• FFT plot (filtered by aligned flare GTIs) [efftplot]: P<obsid><exp>SFFTPL8<jkl>.PDF
EPIC source time series plots
TS plot FFT plot
test
Science with 2XMMp time series
2XMMp Cool-Star Variability Survey
Poster by J. Pye, A. Schröder, I. Stewart, N. Webb, D. Fyfe
Tycho catalogue: ~2.5 million stars, V < ~13 mag-> in 2XMMp: ~2000 objects
-> with TS: ~500 objects-> with obvious flares: ~40 objects
-> serendipitous sources: ~10 objects
2XMMp Cool-Star Variability Survey: Example I
HD 14716: V = 9.5mag, F5V
5 other XMM observations (total of ~60 ks) show X-ray emission at quiescent level
2XMMp Cool-Star Variability Survey: Example II
2MASS J04072181-1210033: V = 11.7mag, (B-V) ~ 0.5
2 XMM observations 2 days apart
2XMMp Cool-Star Variability Survey: Example III
UY ScI: Chen et al 2006 (ApJ 131, 990): -> W UMa-type binary (P ~ 31ks, d=389 pc)
=> XMM PN exposure duration ~ binary period
2XMMp Cool-Star Variability Survey: Example IV
XMM MOS1
XMM OM UVM2 filter (manual extraction)
Science with 2XMMp spectra
2XMMp spectra: Iron lines
‘Quick script’: fit power law to 3 – 12 keV sort by reduced 2 look at plots with > 10 dof
2XMMp spectra: Iron lines: Example I
• Target: TY CrA
• offaxis angle: 6.’4
• Simbad: YSO
2XMMp spectra: Iron lines: Example II
• Target: G0.9+0.1 (Gal Centre)
• offaxis angle: 11.’7
• ACDS: X-ray source [CXOU]
and NIR source [2MASS]
2XMMp spectra: Iron lines: Example III
• Target: Abell 1314
• offaxis angle: 8.’9
• ACDS: MCG+08-21-065
v = 8900 km/s Sb
2XMMp spectra: Iron lines: Example IV
• Target: NGC 1068
• offaxis angle: 6.’3
• ACDS: star [GPM] or
poss quasar [-> Arp 97]
2XMMp spectra: Iron lines: Example IV
EPIC OM - UVW1
2XMMp spectra: Iron lines: Example IV
EPIC OM - UVW1
green: p-src
cyan: extended src
2XMMp spectra: Iron lines: Example IV
• Target: NGC 1068
• offaxis angle: 6.’3
• ACDS: star [GPM] or
poss quasar [-> Arp 97]
• Fe line: ~6.7 keV (Fe XXV)
2XMMp spectra: Iron lines: Example IV
• Target: NGC 1068
• offaxis angle: 6.’3
• ACDS: star [GPM] or
poss quasar [-> Arp 97]
• Fe line: ~6.7 keV (Fe XXV)
• Stellar flare