133 citations · 2.9k across the 93 of their papers we have counts for
9 papers · 1 filter
LBV phenomenon and binarity: The environment of HR Car
A. Mehner, S. Janssens, C. Agliozzo +7
Luminous blue variable stars (LBVs) are of great interest in massive-star evolution as they experience very high mass-loss episodes within short periods of time. HR Car is a famous…
Empirical mass-loss rates and clumping properties of Galactic early-type O supergiants
C. Hawcroft, H. Sana, L. Mahy +7
We investigate the impact of optically thick clumping on stellar wind diagnostics in O supergiants and constrain wind parameters associated with porosity in velocity space. This is…
The observed multiplicity properties of B-type stars in the Galactic young open cluster NGC 6231
G. Banyard, H. Sana, L. Mahy +3
It is well known that massive O-stars are frequently (if not always) found in binary or higher-order multiple systems, but this fact has been less robustly investigated for the low…
Multiplicity of Galactic Luminous Blue Variable stars
L. Mahy, C. Lanthermann, D. Hutsemékers +7
Context. Luminous Blue Variables (LBVs) are thought to be in a transitory phase between O stars on the main-sequence and the Wolf-Rayet stage. Recent studies suggest that they migh…
Resolving the dynamical mass tension of the massive binary 9 Sagittarii
M. Fabry, C. Hawcroft, A. J. Frost +4
Direct dynamical mass measurements of stars with masses above 30 M are rare. This is the result of the low yield of the upper initial mass function and the limited number…
The young massive SMC cluster NGC 330 seen by MUSE II. Multiplicity properties of the massive-star population
J. Bodensteiner, H. Sana, C. Wang +10
Observations of massive stars in young open clusters (< ~8 Myr) have shown that a majority of them are in binary systems, most of which will interact during their life. Populations…
Constraining the Overcontact Phase in Massive Binary Evolution I. Mixing in V382 Cyg, VFTS 352, and OGLE SMC-SC10 108086
Michael Abdul-Masih, Hugues Sana, Calum Hawcroft +10
As potential progenitors of several exotic phenomena including gravitational wave sources, magnetic stars, and Be stars, close massive binary systems probe a crucial area of the pa…
The Tarantula Massive Binary Monitoring V. R 144: a wind-eclipsing binary with a total mass > 140 Msun
T. Shenar, H. Sana, P. Marchant +21
R 144 is the visually brightest WR star in the Large Magellanic Cloud (LMC). R 144 was reported to be a binary, making it potentially the most massive binary thus observed. We perf…
The excess of cool supergiants from contemporary stellar evolution models defies the metallicity-independent Humphreys-Davidson limit
Avishai Gilkis, Tomer Shenar, Varsha Ramachandran +5
The Humphreys-Davidson (HD) limit empirically defines a region of high luminosities (log L > 5.5) and low effective temperatures (T < 20kK) on the Hertzsprung-Russell Diagram in wh…