RL
R. R. Lefever
astro-ph.SRastro-ph.GAastro-ph.HEastro-ph.IMastro-ph.COphysics.ed-phphysics.pop-ph
On Valency
published · living versionsW_64q97rmd·v1 · currentpublished
A high fraction of close massive binary stars at low metallicity
with H. Sana, T. Shenar, J. Bodensteiner, N. Britavskiy +72
1 version
Preprints & journals
29 papers in the corpus · 2022–2026Mapping Wolf-Rayet winds with spectro-interferometry I. Detection of multiple co-rotating interaction regions in WR 62610.14348v1 · K. Deshmukh, A.-N. Chen'e, A. J. Frost et al.2026 · 0 citationsarXiv
Distinct Population of Wolf-Rayet Stars in the Low-Metallicity Galaxy NGC 6822. Quantitative analysis of optical and UV spectra of the complete sample2609.22918v1 · R. Trigg, L. M. Oskinova, W.-R. Hamann et al.2026 · 0 citationsarXiv
The complex dependencies of Wolf-Rayet winds -- Insights from detailed radiative transfer models2604.00650v1 · Andreas A.C. Sander, Roel R. Lefever, Gemma Gonz'alez-Tora2026 · 0 citationsarXiv
EWOCS-V: Is Wd1-72 a recent post-interaction WR+O binary?2601.21788v2 · C. J. K. Larkin, J. Mackey, H. Jin et al.2026 · 0 citationsA&A 710, L9 (2026)
Dynamically consistent analysis of Galactic WN4b stars2601.02498v2 · Roel R. Lefever, Andreas A.C. Sander, Matheus Bernini-Peron et al.2026 · 2 citationsarXiv
Interferometry of Massive Stars: Multiplicity, Magnetism, and Stellar Winds2512.00444v1 · H. Sana E. Bordier, K.Deshmukh, A.J. Frost et al.2025 · 0 citationsarXiv
Can Wolf-Rayet stars be the missing ingredient to explain high-z He II ionizing radiation?2511.16323v1 · G. Gonz'alez-Tora, A. A. C. Sander, E. Egorova et al.2025 · 1 citationarXiv
Mass loading of outflows from evolving Young Massive Clusters2510.06100v1 · C. J. K. Larkin, C. Hawcroft, J. Mackey et al.2025 · 3 citationsA&A 703, L14 (2025)
A high fraction of close massive binary stars at low metallicity2509.12488v1 · H. Sana, T. Shenar, J. Bodensteiner et al.2025 · 26 citationsNature Astronomy (2025)on Valency
SDSS-V LVM: Detectability of Wolf-Rayet stars and their He II ionizing flux in low-metallicity environments I. The weak-lined, early-type WN3 stars in the SMC2509.04569v2 · G. Gonz'alez-Tora, A. A. C. Sander, E. Egorova et al.2025 · 3 citationsA&A 703, L11 (2025)
Discovery of a new transitional type of evolved massive stars with hard ionizing flux2508.18410v1 · Andreas A.C. Sander, Roel R. Lefever, Joris Josiek et al.2025 · 0 citationsarXiv
Near-Eddington mass loss of hydrogen-rich Wolf-Rayet stars2506.13582v1 · Roel R. Lefever, Andreas A.C. Sander, Matheus Bernini-Peron et al.2025 · 2 citationsA&A 700, A2 (2025)
Improving 1D stellar atmosphere models with insights from multi-dimensional simulations II. 1D versus 3D hydrodynamically consistent model comparison for WR stars2505.16458v1 · G. Gonz'alez-Tora, A. A. C. Sander, N. Moens et al.2025 · 3 citationsA&A 699, A244 (2025)
Exploring the connection between atmosphere models and evolution models of very massive stars2504.08880v1 · Joris Josiek, Andreas A. C. Sander, Matheus Bernini-Peron et al.2025 · 9 citationsA&A 697, A193 (2025)
New empirical mass-loss recipe for UV radiation line-driven winds of hot stars across various metallicities2504.07073v1 · D. Pauli, L. M. Oskinova, W.-R. Hamann et al.2025 · 5 citationsarXiv
Coupling hydrodynamics with comoving frame radiative transfer. III. The wind regime of early-type B hypergiants2504.03537v1 · M. Bernini-Peron, A.A.C. Sander, F. Najarro et al.2025 · 0 citationsarXiv
Resolving the baryon assymmetry with RATS2503.24319v1 · J. Josiek, M. Bernini-Peron, G. Gonz'alez-Tora et al.2025 · 0 citationsarXiv
X-Shooting ULLYSES: massive stars at low metallicity: XII. The clumped winds of O-type (super)giants in the Large Magellanic Cloud2503.14687v1 · Sarah A. Brands, Frank Backs, Alex de Koter et al.2025 · 8 citationsA&A 697, A54 (2025)
Extremely iron-poor O-type stars in the Magellanic Bridge2503.10769v1 · E.C. Schosser, V. Ramachandran, A.A.C. Sander et al.2025 · 5 citationsA&A 696, L3 (2025)
A new mass estimate method with hydrodynamical atmospheres for very massive WNh stars2502.14957v2 · Gautham N. Sabhahit, Jorick S. Vink, Andreas A. C. Sander et al.2025 · 7 citationsarXiv
Improving 1D stellar atmosphere models with insights from multi-dimensional simulations I. 1D vs 2D stratifications and spectral comparison for O stars2501.14511v1 · G. Gonz'alez-Tora, A. A. C. Sander, J. O. Sundqvist et al.2025 · 11 citationsA&A 694, A269 (2025)
Investigating 39 Galactic Wolf-Rayet stars with VLTI/GRAVITY: Uncovering A Long Period Binary Desert2409.15212v2 · K. Deshmukh, H. Sana, A. M'erand et al.2024 · 14 citationsA&A 692, A109 (2024)
X-Shooting ULLYSES: Massive stars at low metallicity. IV. Spectral analysis methods and exemplary results for O stars2407.03137v2 · A.A.C. Sander, J.-C. Bouret, M. Bernini-Peron et al.2024 · 18 citationsA&A 689, A30 (2024)
Improving Undergraduate Astronomy Students' Skills with Research Literature via Accessible Summaries: An Exploratory Case Study with Astrobites-based Reading Assignments2309.05822v3 · Briley L. Lewis, Abygail R. Waggoner, Emma Clarke et al.2023 · 1 citationPhys. Rev. Phys. Educ. Res. Vol 21 Issue 1 Mar 2025
X-Shooting ULLYSES: massive stars at low metallicity. I. Project Description2305.06376v3 · Jorick S. Vink, A. Mehner, P.A. Crowther et al.2023 · 63 citationsA&A 675, A154 (2023)
X-Shooting ULLYSES: Massive stars at low metallicity. III. Terminal wind speeds of ULLYSES massive stars2303.12165v2 · C. Hawcroft, H. Sana, L. Mahy et al.2023 · 44 citationsA&A 688, A105 (2024)
Exploring the influence of different velocity fields on Wolf-Rayet star spectra2302.13964v2 · Roel R. Lefever, Andreas A. C. Sander, Tomer Shenar et al.2023 · 17 citationsarXiv
The temperature dependency of Wolf-Rayet-type mass loss: An exploratory study for winds launched by the hot iron bump2301.01785v1 · A. A. C. Sander, R. R. Lefever, L. G. Poniatowski et al.2023 · 47 citationsA&A 670, A83 (2023)
Investigating the impact of different velocity fields on the spectral appearance of Wolf-Rayet stars2209.06043v1 · Roel R. Lefever, Tomer Shenar, Andreas A. C. Sander et al.2022 · 0 citationsarXiv
Career total: 44 works. 29 are in this corpus.
Profile built from the corpus for this byline.
Author records are still filling in while the Hub is in alpha. If this is your page, you'll be able to claim it soon. Spot a mistake? Tell us.