cross-calibration between all three instruments lin yan, jason surace (spitzer science center)
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Cross-Calibration Between All Three Instruments
Lin Yan, Jason Surace
(Spitzer Science Center)
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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.
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Stars: HD172728
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Stars: HD173511
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Stars: HD166780
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Stars: HR6348
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Stars: HD170693
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Stars: HR4138
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Stars: HD58142
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Mrk279
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IRAS 05189-2524
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Arp220
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Mrk231
Magenta: ISO SWS
Cyan: IRAC 8, MIPS24, IRAS 25
Blue: ISO LWS
Red: MIPS SED
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Asteroids: Isara
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Asteroids: Geometria
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Asteroids: Amalia
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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.