HIP 60350: an extreme runaway star

Details HIP 60350: an extreme runaway star HIP 60350: an extreme runaway star

Nov 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998a%26a...339..782m&link_type=abstract

Astronomy and Astrophysics, v.339, p.782-786 (1998)

Astronomy and Astrophysics

Astrophysics

8

Stars: Chemically Peculiar, Stars: Early-Type, Stars: Kinematics, Galaxy: Kinematics And Dynamics

Scientific paper

Using Hipparcos proper motion as well as published and our own radial velocity data we identify HIP 60350 as fastest young B-type runaway star ejected 20 Myr ago or slightly less from the galactic plane, probably at a distance from the galactic center corresponding to spiral arm -II. Both the LSR velocity (417 kms(-1) ) and the mass of the star point to dynamical cluster ejection rather than to a supernova scenario. Published and our own photometric data as well as our spectroscopic evidence reveal no noticeable peculiarity and a spectral type B4/5 V. No significant radial velocity variations have been found during the last two decades. Based on data obtained with the Multiple Mirror Telescope, a joint facility of the University of Arizona and the Smithsonian Institution and from the ESA Hipparcos astrometry satellite

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