Roel Lefever, M.Sc.

15.

6/2025
Lewis, Briley L.; Waggoner, Abygail R. et al. (inc. Lefever, R. R.)
Improving undergraduate astronomy students' skills with research literature via accessible summaries: An exploratory case study with Astrobites-based reading assignments
PRPER 21, a0124(2025)

14.

5/2025
Brands, Sarah A.; Backs, Frank et al. (inc. Sander, Andreas A. C.; Ramachandran, Varsha; Lefever, Roel R.)
X-Shooting ULLYSES: Massive stars at low metallicity: XII. Clumped winds of O-type (super)giants in the Large Magellanic Cloud
A&A 697, A54(2025)

13.

5/2025
Josiek, J.; Sander, A. A. C. et al. (inc. Schösser, E. C.; Ramachandran, V.; Lefever, R. R.; González-Torà, G.; Bernini-Peron, M.)
Exploring the connection between atmosphere models and evolution models of very massive stars
A&A 697, A193(2025)

12.

5/2025
Pauli, D.; Oskinova, L. M. et al. (inc. Ramachandran, V.; Lefever, R. R.; Josiek, J.; Bernini-Peron, M.; Sander, A. A. C.)
New empirical mass-loss recipe for UV radiation line-driven winds of hot stars across various metallicities
A&A 697, A114(2025)

11.

5/2025
Bernini-Peron, M.; Sander, A. A. C. et al. (inc. Schösser, E. C.; González-Torà, G.; Ramachandran, V.; Lefever, R. R.)
Coupling hydrodynamics with comoving frame radiative transfer: III. The Wind Regime of Early-Type B Hypergiants
A&A 697, A41(2025)

10.

4/2025
Sabhahit, Gautham N.; Vink, Jorick S. et al. (inc. Lefever, Roel R.; Bernini-Peron, Matheus; Sander, Andreas A. C.)
A new mass estimate method with hydrodynamical atmospheres for very massive WNh stars
A&A 696, A200(2025)

9.

4/2025
Schösser, E. C.; Ramachandran, V. et al. (inc. Lefever, R. R.; Josiek, J.; González-Torà, G.; Bernini-Peron, M.; Sander, A. A. C.)
Extremely iron-poor O-type stars in the Magellanic Bridge
A&A 696, L3(2025)

8.

2/2025
González-Torà, G.; Sander, A. A. C. et al. (inc. Lefever, R. R.; Josiek, J.)
Improving 1D stellar atmosphere models with insights from multi-dimensional simulations: I. 1D versus 2D stratifications and spectral comparisons for O stars
A&A 694, A269(2025)

7.

12/2024
Deshmukh, K.; Sana, H. et al. (inc. Sander, A. A. C.; Lefever, R. R.)
Investigating 39 Galactic Wolf-Rayet stars with VLTI/GRAVITY: Uncovering a long-period binary desert
A&A 692, A109(2024)

6.

10/2024
Shenar, T.; Bodensteiner, J. et al. (inc. Schösser, E. C.; Schneider, F. R. N.; Sander, A. A. C.; Ramachandran, V.; Lefever, R. R.; Josiek, J.; González-Torà, G.; Bronner, V. A.; Bernini-Peron, M.)
Binarity at LOw Metallicity (BLOeM): A spectroscopic VLT monitoring survey of massive stars in the SMC
A&A 690, A289(2024)

5.

9/2024
Sander, A. A. C.; Bouret, J. -C. et al. (inc. Schösser, E. C.; Lefever, R. R.; Larkin, C. J. K.; Ramachandran, V.; Bernini-Peron, M.)
X-Shooting ULLYSES: Massive stars at low metallicity: IV. Spectral analysis methods and exemplary results for O stars
A&A 689, A30(2024)

4.

8/2024
Hawcroft, C.; Sana, H. et al. (inc. Sander, A. A. C.; Lefever, R.)
X-Shooting ULLYSES: Massive stars at low metallicity. III. Terminal wind speeds of ULLYSES massive stars
A&A 688, A105(2024)

3.

7/2023
Vink, Jorick S.; Mehner, A. et al. (inc. Ramachandran, V.; Lefever, R. R.; Larkin, C. J. K.; Bernini-Peron, M.; Sander, A. A. C.)
X-Shooting ULLYSES: Massive stars at low metallicity. I. Project description
A&A 675, A154(2023)

2.

5/2023
Lefever, R. R.; Sander, A. A. C. et al.
Exploring the influence of different velocity fields on Wolf-Rayet star spectra
MNRAS 521, 1374(2023)

1.

2/2023
Sander, A. A. C.; Lefever, R. R. et al. (inc. Ramachandran, V.; Poniatowski, L. G.)
The temperature dependency of Wolf-Rayet-type mass loss. An exploratory study for winds launched by the hot iron bump
A&A 670, A83(2023)