Determining the spatial orientation of stellar rotation axes

Details Determining the spatial orientation of stellar rotation axes Determining the spatial orientation of stellar rotation axes

Jan 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pasp...97...57s&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 97, Jan. 1985, p. 57-59.

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12

Axes Of Rotation, Dwarf Stars, Late Stars, Spatial Distribution, Stellar Rotation, Stellar Spectrophotometry

Scientific paper

Recent proposals for determining the spatial orientation of stellar rotation axes are discussed and are shown to be impractical. In particular, knowledge of v sin i values and rotation periods for late-type dwarfs cannot be reliably combined to yield inclination angles i because of what may be fundamental uncertainties in the observables. Another idea for determining the position angles of rotation axes is far beyond current capabilities in practice, and probably will not work in principle anyway. For a few nearby subgiants and dwarfs, it may be possible to determine the position of a single, dominant spot through Differential Speckle Interferometry.

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