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pro vyhledávání: '"Anthony P. Marston"'
Autor:
Anthony P. Marston
Publikováno v:
Symposium - International Astronomical Union. 193:306-315
The environments of evolved massive stars provide an opportunity of obtaining information on the past, as well as current, condition of the stars themselves. In this review we will look at the incidence of ring nebulae around Wolf-Rayet stars, their
Autor:
Anthony P. Marston
Publikováno v:
Symposium - International Astronomical Union. 212:732-733
Optically observed ring nebulae and H i cavities around Wolf-Rayet stars have enabled us to obtain information on the history of mass-loss associated with these massive evolved stars. However, such studies have left a number of unanswered questions r
Publikováno v:
Symposium - International Astronomical Union. 193:370-371
We present the first 12CO 1→0 emission-line maps of the vicinities of two Wolf-Rayet stars (WR 16 and WR 75) and their associated ring nebulae. We illustrate that sizeable amounts of molecular gas appear associated with these ring nebulae and there
Publikováno v:
Symposium - International Astronomical Union. 193:372-373
We present a kinematical study of ring nebulae surrounding Wolf-Rayet stars in the Local Group galaxy M 33, based on Fabry-Perot data obtained at the CFHT. Most of these rings show evidence for multiple phases of mass ejection from the central star.
Publikováno v:
Highlights of Astronomy. 13:967-967
Massive stars have profound effects on their surroundings, influencing them by their energetic stellar winds, and finally by supernova explosions. We present a CO 2-1 map of the surroundings of the Wolf-Rayet star WR16, taken with AST/RO at the South