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1. 1. Radial Velocities Without Spectroscopy -Astrometric determination of stellar radial motion

   Författare :Søren Madsen; Astronomi - Genomgår omorganisation; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Astronomi; Hipparcos; Astronomy; space research; cosmic chemistry; astrometry; stellar astrophysics; N-body simulations; Open clusters and associations; cluster kinematics and dynamics; rymdvetenskap; kosmisk kemi;

   Sammanfattning : This work demonstrates the determination of absolute stellar radial velocities from geometrical principles, i.e. using astrometry. Such `astrometric radial velocities' are obtained independently of spectroscopic information. LÄS MER