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High-Resolution Calibration of X-ray Sources: Insights from Capella and SNR 1E 0102-7219

This work presents a detailed calibration of high-resolution X-ray spectra, focusing on the Capella system and the supernova remnant (SNR) 1E 0102-7219. By employing advanced models and tools such as XSPEC and AtomDB, we explore the ion-based decomposition, emission lines, and unique continuum sources within these objects. Additionally, we examine the impact of various parameters on the spectral lines and present alternative views to enhance observational accuracy, highlighting the significance of non-solar abundances and resolved line profiles for ongoing astrophysical research.

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High-Resolution Calibration of X-ray Sources: Insights from Capella and SNR 1E 0102-7219

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  1. Plasma models of calibration sources at high resolution Andy PollockXMM-Newton RGS Calibration ScientistIACHEC High-Resolution Working Group ATOMDB Work Week @ CfA 2012 August 6-10

  2. HETG spectra and old APEC model of Capella MEG HEG

  3. HETG spectra and old APEC model of Capella MEG HEG

  4. Deconstructing X-ray models of Capella • Data • Chandra HETG, then RGS, then LETG • Calibration • Appropriate response files • Ion-based decomposition of ATOMDB • Bound transitions • emission lines (λ,f) • DR • RRC • 2-photon continuum • Free-free electron continuum • Methods to explore parameter space • XSPEC+Tcl or ISIS+S-lang

  5. >1000 lines + 90 continua  ~2500 DOFs for Capella ATOMDB v2.0.2 MEG N=8192 Σn=510316 n≤5948 C-Statistic=74814.6 HEG N=8192 Σn=133800 n≤634 C-Statistic=42305.5

  6. 1Ms RGS spectrum of SNR 1E0102-7219

  7. Alternative views of SNR 1E0102-7219 OVII OVIIINeIXNeX Plucinsky+ 2012

  8. 1Ms RGS spectrum of SNR 1E0102-7219

  9. 1Ms RGS spectrum of SNR 1E0102-7219

  10. WR140 : the hot-star Capella MEG HEG WC7+O5 P=8yr e=0.9 • 1/D scaling • net • LX • NX • no H • abundances • fir ratios • line profiles

  11. WR140 : the hot-star Capella

  12. AtomDB items of interest • Capella  APEC • Good for observers • What do theorists say ? • Emission lines in SNRs, CWBs and other fancies • Out of equilibrium • Non-solar abundances • Resolved line profiles • Charge exchange (equilibrium) • SNR 1E0102-7219 challenge • Photoelectric absorption • “McClaughlin+ model” for Xspec • Use the C-statistic • χ2 is wrong

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