New JWST observations of Centaurus A detect H2 lines up to S(8) and map a warm molecular disk with a 20-pc cavity aligned to the jet, filamentary high-excitation structures, S-shaped kinematics, and an inward streamer, yielding a warm H2 mass of 5.6e5 solar masses heated by shocks.
A model for atomic and molecular interstellar gas: The Meudon PDR code
5 Pith papers cite this work. Polarity classification is still indexing.
abstract
We present the revised ``Meudon'' model of Photon Dominated Region (PDR code), presently available on the web under the Gnu Public Licence at: http://aristote.obspm.fr/MIS. General organisation of the code is described down to a level that should allow most observers to use it as an interpretation tool with minimal help from our part. Two grids of models, one for low excitation diffuse clouds and one for dense highly illuminated clouds, are discussed, and some new results on PDR modelisation highlighted.
years
2026 5representative citing papers
Outer-disk H2 in Oph 163131 is v-hot and J-cold from combined UV and cosmic-ray excitation plus collisions, implying an effective CR ionization rate of order 10^{-15} s^{-1}.
Simultaneous UV-to-NIR X-Shooter spectroscopy of NGC 7009 knots reveals over 250 emission lines, including P+ first seen in LISs and seven new H2 lines, with shock excitation inferred from multiple tracers.
citing papers explorer
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MICONIC: The multiphase circumnuclear region of Centaurus A as seen with JWST/MIRI MRS observations. I. Spectral inventory and properties of the warm molecular disk
New JWST observations of Centaurus A detect H2 lines up to S(8) and map a warm molecular disk with a 20-pc cavity aligned to the jet, filamentary high-excitation structures, S-shaped kinematics, and an inward streamer, yielding a warm H2 mass of 5.6e5 solar masses heated by shocks.
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JWST Edge-on Disk Ice (JEDIce): Vibrationally hot, rotationally cold H$_2$ in the outer disk of Oph 163131 non-thermally excited by UV and cosmic rays
Outer-disk H2 in Oph 163131 is v-hot and J-cold from combined UV and cosmic-ray excitation plus collisions, implying an effective CR ionization rate of order 10^{-15} s^{-1}.
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X-Shooter view of planetary nebulae microstructures I: The case of NGC 7009 knots
Simultaneous UV-to-NIR X-Shooter spectroscopy of NGC 7009 knots reveals over 250 emission lines, including P+ first seen in LISs and seven new H2 lines, with shock excitation inferred from multiple tracers.
- Resolving dense photodissociation regions: the structure of photochemical fronts in three-dimensional gas distributions
- Grain alignment and dust evolution physics with polarisation (GRADE-POL). II. On the physical basis of Serkowski and super-Serkowski polarisation spectra