Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005noao.prop..236m&link_type=abstract
NOAO Proposal ID #2005B-0236
Astronomy and Astrophysics
Astrophysics
Scientific paper
Conducted on NOAO 4-m telescopes in 1994, the first speckle survey of O stars (Mason et al. 1998) had success far in excess of our expectations. In addition to the frequently cited multiplicity analysis, many of the new systems which were first resolved in this paper are of significant astrophysical importance. To date, this paper has resulted in 86 citations in the refereed literature. Now, some ten years after the original survey, we propose to re-investigate all systems analyzed before (N=98) as well as make a first high-resolution inspection of the additional O stars (N=62) in the recent Galactic O Star Catalog of Maiz-Apellaniz & Walborn (2004). In addition, we propose to investigate several additional samples of interesting objects, including 10 accessible Galactic WR stars from the speckle survey of Hartkopf et al. (1999), 16 massive, hot stars with separations which would indicate their applicability for mass determinations (for fully detached O stars, we have only twelve mass determinations), 92 members of the Hyades and Pleiades clusters to complement RV studies of these clusters, and 197 Hyades & Pleiades stars, reobserved from the 1991 lists (Mason et al. 1993a,b).
Gies Douglas R.
Hartkopf William I.
Henry Todd J.
Mason Brian
Torres Guillermo
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