Radiative transfer and molecular data for astrochemistry (Review)

Abstract

The estimation of molecular abundances in interstellar clouds from spectroscopic observations requires radiative transfer calculations, which depend on basic molecular input data. This paper reviews recent developments in the fields of molecular data and radiative transfer. The first part is an overview of radiative transfer techniques, along with a "road map" showing which technique should be used in which situation. The second part is a review of measurements and calculations of molecular spectroscopic and collisional data, with a summary of recent collisional calculations and suggested modeling strategies if collision data are unavailable. The paper concludes with an overview of future developments and needs in the areas of radiative transfer and molecular data.

Contribution to proceedings of IAU Symposium 280, "The Molecular Universe", Toledo, June 2011; 12 pages

References in corpus (16)

• Water in Star-Forming Regions with the Herschel Space Observatory (WISH): Overview of key program and first results
• Survey of ortho-H2D+(1_{1,0}-1_{1,1}) in dense cloud cores
• Quasi-classical rate coefficient calculations for the rotational (de)excitation of H2O by H2
• On the frequency of N2H+ and N2D+
• Detection of interstellar hydrogen peroxide
• Mechanical feedback in the molecular ISM of luminous IR galaxies
• Observational Constraints on Submillimeter Dust Opacity
• Electron-impact rotational and hyperfine excitation of HCN, HNC, DCN and DNC
• Molecular line radiative transfer in protoplanetary disks: Monte Carlo simulations versus approximate methods
• State-to-State Differential and Relative Integral Cross Sections for Rotationally Inelastic Scattering of H2O by Hydrogen
• Formaldehyde as a Tracer of Extragalactic Molecular Gas I. Para-H_2CO Emission From M 82
• Abundances and rotational temperatures of the C2 interstellar molecule towards six reddened early-type stars
• Collisional excitation of doubly deuterated ammonia NHD2 by para-H2
• Distribution and excitation of thermal methanol in 6.7 GHz maser bearing star-forming regions; I. The nearby source Cepheus A
• Adaptable Radiative Transfer Innovations for Submillimeter Telescopes (ARTIST)
• Molecular data and radiative transfer tools for ALMA

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• Unveiling the physical conditions of the youngest disks: A warm embedded disk in L1527
• Detection of HF emission from the Orion Bar
• Synthetic observations of star formation and the interstellar medium
• On the Validity of Collider-Mass Scaling for Molecular Rotational Excitation
• Sulphur-bearing molecules in AGB stars I: The occurrence of hydrogen sulfide
• Slow ionized wind and rotating disklike system associated with the high-mass young stellar object G345.4938+01.4677
• Quantum Calculation of Inelastic CO Collisions with H. III. Rate Coefficients for Ro-vibrational Transitions
• The HIFI spectral survey of AFGL 2591 (CHESS). III. Chemical structure of the protostellar envelope
• Analysis of Low Excitation HDO Transitions Toward the High-Mass Star-forming Regions G34.26+0.15, W51e${}_1$/e${}_2$, and W49N
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• Unmasking the physical information inherent to interstellar spectral line profiles with Machine Learning. I. Application of LTE to HCN and HNC transitions