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| EPoS Contribution |
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Abundances in hot cores: Comparing models to HIFI and IRAM spectra
Massimo De Luca LERMA-LRA, ENS, Observatoire de Paris, UPMC, UCP, CNRS, Paris, | |
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The primary goal of the PRISMAS Herschel programme is the spectroscopy
study of key mulecular line carriers towards bright Galactic star forming
regions and diffuse clouds distributed along the line of sight.
Models of the hot core abundancies and excitation temperatures have been
built on the basis of: 1) observational evidencies in comparable
environments, 2) warm-up chemical models with
gas-grain networks, and 3) ground based spectra of the
target sources at various molecules (IRAM).
The considerable complexity of the hot core chemistry, together with the
huge amount of information hidden in the spectra, often prevents a
straightforward interpretation of the data without the mediation of
simulations; and this is particularly true for the almost unexplored
wavelength range of HIFI.
In this contribution I will compare HIFI and IRAM observations to the models in order either to consolidate present day assumptions and knowledge on these environments or to spot model limits, poorly understood physical/chemical conditions or unespected abundancies and correlations. I will pay particular attention to the ground states of the most important hydrides, which the PRISMAS proposal has been designed for, although HIFI spectra are also expected to be rich in more complex molecules. | |
| Collaborators: PRISMAS Herschel Key Programme consortium |
Key publication
Suggested Session: Chemistry, Cores and Collapse, Herschel |