7 papers
Testing various assumptions for radiolysis, non-diffusive chemistry, and chemical desorption in cold cores
V. Wakelam, T. Tu
To study interstellar gas and grain chemistry, gas-phase astrochemical models have been developed since the early 1980s and gas-grain models since the 1990s. Each published model i…
Dust Absorption towards Supernova Remnant W44
Tian-Yu Tu, Adwin Boogert, Yang Chen +1
Supernova remnants (SNRs) can strongly affect the chemical composition of the interstellar dust. In this paper we investigate to what degree the dust and ices are modified by obser…
Simulation of proton radiolysis of H2O and O2 ices with the Nautilus code
Tian-Yu Tu, Valentine Wakelam, Jean-Christophe Loison +3
The radiolysis effect of cosmic rays (CRs) plays an important role in the chemistry in molecular clouds. CRs can dissociate the molecules on dust grains, producing reactive suprath…
CO =3--2 Observations of Tycho's supernova remnant: constraints on the environmental gas properties
Sendi Bo, Yu Huang, Ping Zhou +5
Recent observations suggest that Tycho's supernova remnant (SNR; SN 1572) is expanding into a cavity wall of molecular clouds (MCs), which decelerate the SNR and influence its mult…
Expanding Molecular Shell and Possible γ-ray Source Associated with Supernova Remnant Kesteven 67
Yun-Zhi Shen, Yang Chen, Xiao Zhang +4
We investigate the molecular environment of the supernova remnant (SNR) Kesteven 67 (G18.8+0.3) using observations in CO, CO, HCO,and HCN lines and possible assoc…
Molecular chemistry induced by J-shock toward supernova remnant W51C
Tian-Yu Tu, Valentine Wakelam, Yang Chen +2
Shock waves from supernova remnants (SNRs) have strong influence on the physical and chemical properties of molecular clouds (MCs). Shocks propagating into magnetized MCs can be cl…