Tracing chemical evolution of high-mass star-forming regions

Akash Gup a, Pe e Schilke
1. Ins i u e o Physics, Uni e si y o Cologne
MHD
Simula ion
As ochemical code: Sap a sy
(Choudha y+2015)
Radia i e ans e
calcula ions: RADMC-3D
Syn he ic spec a:
XCLASS
nH, Tdus , Tgas, G0,..
abundances..
MHD Simula ion
- Zimme mann e . al. (in p ep.)
- Fiducial un esolu ion: 400AU
- Ini ial: Tgas = 20K, Tdus = 2.7K
- = 0.56My
- Co e mass: 1000 M☉
- 8e+06 ace pa icles
Sap a sy: Chemical code
- Ra e equa ion based gas-g ain code calcula ing
e ec s o spa io- empo al a ia ion o physical
pa ame e s on chemis y
- Reac ions: gas phase, gas-g ain in e ac ions and
dus su ace eac ions
- Schae e 2017 added mul i-laye ed dus model
Figu e: E olu ion o me hanol
abundance as he UCHII egions
s a o ming. n: numbe densi y in
cm-3