Are parallaxes of long-period variable stars and red supergiants reliable?

Details Are parallaxes of long-period variable stars and red supergiants reliable? Are parallaxes of long-period variable stars and red supergiants reliable?

Jul 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008iaus..248..486b&link_type=abstract

A Giant Step: from Milli- to Micro-arcsecond Astrometry, Proceedings of the International Astronomical Union, IAU Symposium, Vol

Astronomy and Astrophysics

Astronomy

Astrometry, Stars: Agb And Post-Agb, Supergiants

Scientific paper

We have studied the impact of long-term variability and surface
brightness asymmetries on the parallaxes of long-period variable stars
and red supergiants.

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