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Spectroscopy of LMC cluster stars

Published online by Cambridge University Press:  11 March 2020

A. K. Dupree Open the ORCID record for A. K. Dupree [Opens in a new window] ,
C. I. Johnson Open the ORCID record for C. I. Johnson [Opens in a new window] ,
M. Mateo  and
A. P. Milone
A. K. Dupree
Affiliation:
Center for Astrophysics | Harvard & Smithsonian 60 Garden Street, Cambridge, MA02138, USA emails: adupree@cfa.harvard.edu, cjohnson@cfa.harvard.edu
C. I. Johnson
Affiliation:
Center for Astrophysics | Harvard & Smithsonian 60 Garden Street, Cambridge, MA02138, USA emails: adupree@cfa.harvard.edu, cjohnson@cfa.harvard.edu
M. Mateo
Affiliation:
Dept. of Astronomy, University of Michigan, Ann Arbor, Michigan48109, USA email: mmateo@umich.edu
A. P. Milone
Affiliation:
Dipartimento di Fisica e Astronomia “Galileo Galilei”, Univ. di Padova, Vicola dell’Osservatorio 3, Padova, IT-35122 email: antonino.milone@unipd.it
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Abstract

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High resolution spectra of stars in the ≈200 Myr LMC globular cluster, NGC 1866, reveal rapidly rotating stars with variable H α emission and absorption, and signatures of outflowing material. The variable H α line can substantially affect photometric measurements obtained with HST/WFC3 narrow-band filters.

Keywords

globular clusters: individual (NGC 1866)galaxies: Magellanic Cloudsline: profilesstars: emission-lineBestars: windsoutflows

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