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  1. No Access

    Chapter and Conference Paper

    Simulating H2O Maser Emission in the Mass Outflows from Evolved Stars

    The combination of a time-dependent spherically symmetric hydrodynamic model of stellar atmosphere pulsation and a radiation transport code, which incorporates maser saturation theory, enabled us to synthesise...

    J. A. Yates, E. M. L. Humphreys, A. M. S. Richards in Dust and Molecules in Evolved Stars (1998)

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    Chapter and Conference Paper

    A Model for the Variability of SiO Masers in Mira Variables

    Mass loss from M-Miras makes a major contribution to the injection of heavy elements into the interstellar medium and is a key stage in stellar evolution in which a late-type star embarks on its route towards ...

    E. M. L. Humphreys, M. D. Gray, D. Field… in Dust and Molecules in Evolved Stars (1998)

  3. No Access

    Chapter and Conference Paper

    Theoretical Modelling of SiO Maser Lineshapes

    Various factors affecting the lineshapes of SiO masers have been considered: saturation, competitive gain, velocity redistribution and properties of the circumstellar envelope supporting the masers. The linesh...

    M. D. Gray, E. M. L. Humphreys, D. Field in Circumstellar Matter 1994 (1995)