Colliding Winds in the Prototypical Pinwheel Star WR104

Details Colliding Winds in the Prototypical Pinwheel Star WR104 Colliding Winds in the Prototypical Pinwheel Star WR104

Jun 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...208.0604h&link_type=abstract

American Astronomical Society Meeting 208, #6.04; Bulletin of the American Astronomical Society, Vol. 38, p.85

Astronomy and Astrophysics

Astronomy

Scientific paper

In the past decade, diffraction limited images obtained with large telescopes such as Keck and Gemini have revealed fascinating “pinwheel nebulae” around some WR+O colliding wind systems. These Archimedian spirals are believed to consist of outflowing dust somehow formed as a result of the colliding winds. The prototypical system WR 104 is observed to rotate with a period of about eight months. Moderate resolution spectra of WR 104 obtained over the past five years with LRIS on Keck I are presented here. Line profile variations typical of colliding winds are evident and preliminary attempts at modeling these variations are discussed.

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