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Modelling the emission of HNCO towards IRAS16293-2422 using a new set of collisional coefficients
- Source :
- Proceedings of the International Astronomical Union, Proceedings of the International Astronomical Union, Cambridge University Press (CUP), 2017, 13 (S332), pp.435-439. ⟨10.1017/S1743921317006809⟩
- Publication Year :
- 2017
- Publisher :
- Cambridge University Press (CUP), 2017.
-
Abstract
- Isocyanic acid (HNCO) is a simple molecule containing the four main atoms essential for life and can be considered as a prebiotic molecule. To model the HNCO emission in the IRAS16293-2422 class 0 low-mass protostar, we used a new set of HNCO collisional coefficients with ortho-H2and para-H2, computed from a set of rotational excitation quenching rates between HNCO and H2based on a novel potential energy surface for the rigid molecules interactions. We present here the HNCO Potential Energy Surface used to compute this new set of collisional coefficients and the result of the IRAS16293-2422 HNCO spectrum modelling using them.
- Subjects :
- Physics
Quenching (fluorescence)
010308 nuclear & particles physics
Astronomy and Astrophysics
Isocyanic acid
01 natural sciences
Molecular physics
Protostars
Set (abstract data type)
molecular emission
chemistry.chemical_compound
chemistry
[SDU]Sciences of the Universe [physics]
Space and Planetary Science
non-LTE modelling
0103 physical sciences
Potential energy surface
Molecule
Protostar
010303 astronomy & astrophysics
Astrophysics::Galaxy Astrophysics
Excitation
Subjects
Details
- ISSN :
- 17439221 and 17439213
- Volume :
- 13
- Database :
- OpenAIRE
- Journal :
- Proceedings of the International Astronomical Union
- Accession number :
- edsair.doi.dedup.....43bff0dd6423c6e6c5d6f5e540083a63