review of 2xmmp data products anja schröder, univ of leicester, uk john pye, univ of leicester, uk
TRANSCRIPT
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