TY  - GEN
AU  - Zainab Mohamed AbdUlHamed Awad
AU  - Osama Mahmoud Shalabiea , 
AU  - Tetsuo Yamamoto , 
TI  - New rate constants of hydrogenation on interstellar grains and their astrophysical implications / 
PY  - 2005///
CY  - Cairo : 
PB  - Zainab Mohamed AbdUlHamed Awad , 
KW  - Astrochemistry {u2013} Dust
KW  - Chemical Models : gas - grain chemical models
KW  - ISM : molecules
KW  - molecular processes
KW  - Surface reactions
N1  - Thesis (M.Sc.) - Cairo University - Faculty Of Science - Department Of Astronomy and Meteorology; Issued also as CD
N2  - The observed high abundances of gaseous formaldehyde (H2CO) and methanol (CH3OH) in interstellar , circumstellar , protoplanetary mediums and cometary regions indicates that they could not be produced only via gas - phase reaction routes , but there must be other routes to produce them such as surface reactions
ER  -