High Galactic latitude runaway stars as tracers of the spiral armsReport as inadecuate



 High Galactic latitude runaway stars as tracers of the spiral arms


High Galactic latitude runaway stars as tracers of the spiral arms - Download this document for free, or read online. Document in PDF available to download.

Download or read this book online for free in PDF: High Galactic latitude runaway stars as tracers of the spiral arms
A direct observation of the spiral structure of the Galaxy is hindered by our position in the middle of the Galactic plane. We propose a method based on the analysis of the birthplaces of high Galactic latitude runaway stars to map the spiral arms and determine their dynamics. As a proof of concept, the method is applied to a local sample of early-type stars and a sample of runaways stars to obtain estimates of the pattern speed and the spiral arms phase angle. We also estimate the performance of this method once the data gathered by Gaia, in particular for runaway stars observed on the other side of the Galaxy, is available.



Author: M. D. V. Silva; R. Napiwotzki

Source: https://archive.org/







Related documents