PowerPoint Presentation Spectral Response of the HRCI

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SPECTRAL RESPONSE OF THE HRC-I
Vinay Kashyap Jennifer Posson-Brown CXC/SAO
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Some nice things about the HRC-I
large field of view ( 30 x 30)
high spatial resolution (0.13175 arcsec/pix)
low background (9 ct/Ms/arcsec2)
excellent instrument for surveys
NOT!
except that it is colorblind
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POG Fig 7.7 lab data for HRC-I
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Another way to look at a spectrum
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This is an RMF.
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What can you use it for?
not for spectral fitting
hardness ratios R1S/M v/s R2M/H C1log10(S/M)
v/s C2log10(M/H) HR1(S-M)/(SM) v/s
HR2(M-H)/(MH)
quantile color-color diagrams E25, E50,
E75 3(E25 / E75) v/s mE50/(Emin-Emax)
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quantiles
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HARD
SOFT
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HARD
SOFT
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HARD
SOFT
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The HRC-I RMF

• v1 will be available in next CALDB release
• A lot of scope for improvements
• improved gain correction
• more resolution at high energies
• PI v/s SUMAMPS
• improved energy scale