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Cross-Calibration Between All Three Instruments
Lin Yan, Jason Surace
(Spitzer Science Center)
IntentCheck flux calibration consistency between IRAC 8µm and IRS-SL, MIPS 24um and IRS-LL. Sample Stars: 7 (K, A) Red extragalactic objects: 4 Asteroids: 3Point sources only, mix of blue and red objects.All data processed through S11 or S12. Spectra from Yan, IRAC and MIPS points from Surace, Yan, and Rho.
Stars: HD172728
Stars: HD173511
Stars: HD166780
Stars: HR6348
Stars: HD170693
Stars: HR4138
Stars: HD58142
Mrk279
IRAS 05189-2524
Arp220
Mrk231
Magenta: ISO SWS
Cyan: IRAC 8, MIPS24, IRAS 25
Blue: ISO LWS
Red: MIPS SED
Asteroids: Isara
Asteroids: Geometria
Asteroids: Amalia
Conclusions and Future Plans
• Based on the data for 7 stars + 4 AGN, we found all MIPS 24um fluxes are consistent with the IRS spectra within 10%.
• Comparing IRAC 8um and IRS short low spectra, we found that the consistency is within 10%. This is based on 8 sources which have both IRAC and IRS data. More is needed.
• For red AGNs, consistency is extremely good.