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Tools for the Analysis of Stars and Nebulae

Tools for the Analysis of Stars and Nebulae. Thomas Rauch Institut für Astronomie und Astrophysik Universität Tübingen Germany. Synthetic Spectra for Hot, Compact Stars. TMAP Tübingen NLTE Model-Atmosphere Package http://astro.uni-tuebingen.de/~rauch/TMAP/TMAP.html

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Tools for the Analysis of Stars and Nebulae

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  1. Tools for the Analysis of Stars and Nebulae Thomas Rauch Institut für Astronomie und Astrophysik Universität Tübingen Germany

  2. Synthetic Spectra for Hot, Compact Stars • TMAP • Tübingen NLTE Model-Atmosphere Package • http://astro.uni-tuebingen.de/~rauch/TMAP/TMAP.html • hydrostatic and radiative equilibrium • plane-parallel / spherical geometry • fully line-blanketed (H – Ni) model atmospheres Spectroscopy & VO Workshop

  3. state of the art

  4. Spectral Analysis via GAVO • based on TMAP, the Tübingen Model-Atmosphere Package, provide • Synthetic Spectra • http://astro.uni-tuebingen.de/~rauch/TMAF/TMAF.html • http://archive.eso.org/wdb/wdb/vo/model_rauch/form • Simulation Software • http://astro.uni-tuebingen.de/~TMAW/index_gavo.shtml • Atomic Data • http://astro.uni-tuebingen.de/~rauch/TMAD/TMAD.html Spectroscopy & VO Workshop

  5. Spectral Analysis via GAVO II • way to reality • use model-flux grids • ready to use, interpolation • calculate individual model atmospheres • Teff, log g, mass fraction {Xi}, i  (H, He, C, N, O) • standard model atoms • create own atomic-data files, i  (H - Ni), and calculate model atmospheres Spectroscopy & VO Workshop

  6. Spectral Analysis via GAVO • Aim: provide • Synthetic Spectra • TMAF • Simulation Software • TMAW • Atomic Data • TMAD Spectroscopy & VO Workshop

  7. TMAW Spectroscopy & VO Workshop

  8. TMAW II • create • atomic data file • calculate • frequency grid • start model in grey approximation • NLTE model atmosphere • emergent flux • selected wavelength interval and resolution Spectroscopy & VO Workshop

  9. TMAW III • products (via email) • flux tables (, F, F,line / F,cont) • ASCII + VOTable • selected individual wavelength interval • selected: 5 – 2000Å, 3000 – 7000Å, 3000 - 55000Å • plot of flux table • output from last iteration of TMAP Spectroscopy & VO Workshop

  10. TMAW III • data base • model atmosphere • atomic-data file + frequency grid • flux tables (web access) • 5 – 2000Å, 3000 – 7000Å, 3000 - 55000Å Spectroscopy & VO Workshop

  11. TMAW model description • Spectral Data Model • synthetic spectra • comments • code • NLTE • homogeneous • hydrostatic • etc. • parameters • Teff • log g • {Xi} Spectroscopy & VO Workshop

  12. Future Work • Web Interface for MOCASSIN • 3-D photoionization code • Barbara Ercolano (Cambridge) • ionizing fluxes from TMAW • TMAP models for • neutron stars • accretion disks (cataclysmic variables) • … Spectroscopy & VO Workshop

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