133 citations · 422 across the 19 of their papers we have counts for
19 papers
Distinct Population of Wolf-Rayet Stars in the Low-Metallicity Galaxy NGC 6822. Quantitative analysis of optical and UV spectra of the complete sample
R. Trigg, L. M. Oskinova, W. -R. Hamann +9
Context: Wolf-Rayet (WR) stars are particularly rare in low-metallicity galaxies and remain poorly understood. Detailed studies of the presumably complete population of WR stars in…
Extensive Observational Evidence for Massive Star Stellar Wind Variability at Low Metallicities: implications for mass-loss rate determination
Timothy N. Parsons, Raman K. Prinja, Derck L. Massa +1
Mass-loss from massive stars is fundamental to stellar and galactic evolution and enrichment of the interstellar medium. Reliable determination of mass-loss rate is dependent upon…
Expanded Sample of Small Magellanic Cloud Ultraviolet Dust Extinction Curves: Correlations between the 2175 A bump, q_pah, UV extinction shape, and N(HI)/A(V)
Karl D. Gordon, E. L. Fitzpatrick, Derck Massa +7
The Small Magellanic Cloud (SMC) shows a large variation in ultraviolet (UV) dust extinction curves, ranging from Milky Way-like (MW) to significantly steeper curves with no detect…
Optically-thick Structure in Early B Type Supergiant Stellar Winds at Low Metallicities
Timothy N. Parsons, Raman K. Prinja, Matheus Bernini-Peron +6
Accurate determination of mass-loss rates from massive stars is important to understanding stellar and galactic evolution and enrichment of the interstellar medium. Large-scale str…
On the Origin of Wind Line Variability in O Stars
D. Massa, R. K. Prinja
We analyze 10 UV time series for 5 stars which fulfill specific sampling and spectral criteria to constrain the origin of large-scale wind structure in O stars. We argue that excit…
CIR Modulation of the X-ray Flux from the O7.5 III(n)((f)) Star xi Persei?
D. Massa, L. Oskinova, A. W. Fullerton +5
We analyze a 162 ks HETG Chandra observation of the O7.5 III(n)((f)) star xi Per, together with contemporaneous H alpha observations. The X-ray spectrum of this star is similar to…