Dynamics and Cycle of Interstellar H2O and OH Masers
LIU Han-Ping1,2, SUN Jin3, FANG Wei-Hai4, T. Thissen5
1Department of Physics, Beijing Normal University, Beijing 100875
2Applied Optics Beijing Area Major Laboratory, Beijing Normal University, Beijing 100875
3Department of Astronomy, Beijing Normal University, Beijing 100875
4Department of Chemistry, Beijing Normal University, Beijing 100875
5Angewandte Laserphysik, University of Bielefeld, Universitaetsstr. 25, D-33615 Bielefeld, Germany
Dynamics and Cycle of Interstellar H2O and OH Masers
LIU Han-Ping1,2;SUN Jin3;FANG Wei-Hai4;T. Thissen5
1Department of Physics, Beijing Normal University, Beijing 100875
2Applied Optics Beijing Area Major Laboratory, Beijing Normal University, Beijing 100875
3Department of Astronomy, Beijing Normal University, Beijing 100875
4Department of Chemistry, Beijing Normal University, Beijing 100875
5Angewandte Laserphysik, University of Bielefeld, Universitaetsstr. 25, D-33615 Bielefeld, Germany
Abstract： We prepsent an improved radiative pumping model for interstellar H2O and OH masers. This overcomes the defects of former radiative models, and is compatible with astronomical conditions. For the regions of strong H2O and OH formation, it is shown that the rotational population is affected by collisions less than that by radiation. A reasonable scheme for both regeneration and destruction of interstellar H2O and OH molecules is investigated. It can close the dynamical cycle of interstellar H2O and OH species, and can give an appropriate interpretation for both interstellar H2O and OH masers. This model has been confirmed by experiments.
LIU Han-Ping;SUN Jin;FANG Wei-Hai;T. Thissen. Dynamics and Cycle of Interstellar H2O and OH Masers
[J]. 中国物理快报, 2002, 19(8): 1092-1095.
LIU Han-Ping, SUN Jin, FANG Wei-Hai, T. Thissen. Dynamics and Cycle of Interstellar H2O and OH Masers
. Chin. Phys. Lett., 2002, 19(8): 1092-1095.
2002, Vol. 19 
