The Kinematical Association of a Giant Lobe with the Luminous Blue Variable Star P Cygni

Details The Kinematical Association of a Giant Lobe with the Luminous Blue Variable Star P Cygni The Kinematical Association of a Giant Lobe with the Luminous Blue Variable Star P Cygni

May 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999apj...516l..29m&link_type=abstract

The Astrophysical Journal, Volume 516, Issue 1, pp. L29-L32.

Astronomy and Astrophysics

Astronomy

19

Ism: Bubbles, Line: Profiles, Stars: Individual: Constellation Name: P Cygni, Stars: Mass Loss

Scientific paper

Spatially resolved profiles of the Hα and [N II] lambda6584 emission lines have been obtained, with the Manchester Echelle Spectrometer on the San Pedro Martir telescope, across the 7'-long nebulous lobe projecting to the east of P Cygni. The kinematics of this giant lobe indicate convincingly that it is a consequence of a highly asymmetric ejection from this volatile star. There is some evidence that the lobe is the northern wall of a hollow, outflowing cavity, but this suggestion needs to be investigated further. A more intriguing possibility is that it is the manifestation of an outflowing ``funnel'' of gas from P Cygni.

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