Predicted space motions for hypervelocity and runaway stars: proper motions and radial velocities for the GAIA Era

Update Item Information
Publication Type pre-print
School or College College of Science
Department Physics
Creator Bromley, Benjamin C.
Other Author Kenyon, Scott. J.; Brown, Warren R.; Geller, Margaret J.
Title Predicted space motions for hypervelocity and runaway stars: proper motions and radial velocities for the GAIA Era
Date 2014-01-01
Description We predict the distinctive three dimensional space motions of hypervelocity stars (HVSs) and runaway stars moving in a realistic Galactic potential. For nearby stars with distances less than 10 kpc, unbound stars are rare; proper motions alone rarely isolate bound HVSs and runaways from indigenous halo stars. At large distances of 20{100 kpc, unbound HVSs are much more common than runaways; radial velocities easily distinguish both from indigenous halo stars. Comparisons of the predictions with existing observations are encouraging. Although the models fail to match observations of solar-type HVS candidates from SEGUE, they agree well with data for B-type HVS and runaways from other surveys. Complete samples of g < 20 stars with GAIA should provide clear tests of formation models for HVSs and runaways and will enable accurate probes of the shape of the Galactic potential.
Type Text
Publisher IOP Publishing
Volume 793
Issue 2
First Page 1
Last Page 82
Language eng
Bibliographic Citation Kenyon, S. J., Bromley, B. C., Brown, W. R., & Geller, M. J. (2014). Predicted space motions for hypervelocity and runaway stars: proper motions and radial velocities for the GAIA Era. Astrophysical Journal, 793(2), 1-82.
Rights Management (c) IOP Publishing ; This is an author-created, un-copyedited version of an article accepted for publication in Astrophysical Journal. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The definitive publisher authenticated version is available online at ; http://iopscience.iop.org/0004-637X/793/2/122/pdf/0004-637X_793_2_122.pdf ; DOI: 10.1088/0004-637X/793/2/122
Format Medium application/pdf
Format Extent 15,371,702 bytes
Identifier uspace,18950
ARK ark:/87278/s6fn4gbw
Setname ir_uspace
ID 712700
Reference URL https://collections.lib.utah.edu/ark:/87278/s6fn4gbw
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