209 citations · 627 across the 25 of their papers we have counts for
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The Projected Rotational Velocity Distribution of a Sample of OB stars from a Calibration based on Synthetic He I lines
S. Daflon, K. Cunha, F. X. de Araujo +2
We derive projected rotational velocities (vsini) for a sample of 156 Galactic OB star members of 35 clusters, HII regions, and associations. The HeI lines at 4026, 4388, and 4…
Radial velocity measurements of B stars in the Scorpius-Centaurus association
E. Jilinski, S. Daflon, K. Cunha +1
We derive single-epoch radial velocities for a sample of 56 B-type stars members of the subgroups Upper Scorpius, Upper Centaurus Lupus and Lower Centaurus Crux of the nearby Sco-C…
Pristine CNO abundances from Magellanic Cloud B stars II. Fast rotators in the LMC cluster NGC 2004
A. J. Korn, M. F. Nieva, S. Daflon +1
We present spectroscopic abundance analyses of three main-sequence B stars in the young Large Magellanic Cloud cluster NGC 2004. All three targets have projected rotational velocit…
Galactic Metallicity Gradients Derived from a Sample of OB Stars
Simone Daflon, Katia Cunha
The distribution of stellar abundances along the Galactic disk is an important constraint for models of chemical evolution and Galaxy formation. In this study we derive radial grad…
Non-LTE Abundances of Magnesium, Aluminum and Sulfur in OB Stars Near the Solar Circle
S. Daflon, K. Cunha, V. V. Smith +1
Non-LTE abundances of magnesium, aluminum and sulfur are derived for a sample of 23 low-v \sin i stars belonging to six northern OB associations of the Galactic disk within 1 kpc o…
Chemical Abundances of OB Stars with High Projected Rotational Velocities
Simone Daflon, Katia Cunha, Keith Butler +1
Elemental abundances of carbon, nitrogen, oxygen, magnesium, aluminum, and silicon are presented for a sample of twelve rapidly rotating OB star (v sin i > 60 km s^-1) members of t…