@article{UBHD-69354970, author={Backs, Frank and Brands, S. A. and Koter, A. de and Kaper, L. and Vink, J. S. and Puls, J. and Sundqvist, J. and Tramper, F. and Sana, H. and Bernini Peron, Matheus and Bestenlehner, J. M. and Crowther, P. A. and Hawcroft, C. and Ignace, R. and Kuiper, R. and Loon, J. Th van and Mahy, L. and Marcolino, W. and Najarro, F. and Oskinova, L. M. and Pauli, D. and Ramachandran, Varsha and Sander, Andreas A. C. and Verhamme, O.}, title={X-shooting ULLYSES}, subtitle={massive stars at low metallicity : VI. Atmosphere and mass-loss properties of O-type giants in the Small Magellanic Cloud}, year={2024}, pages={1-24}, language={eng}, issn={1432-0746}, volume={692(2024) vom: Dez.}, number={Artikel-ID A88}, note={Online ver{\"o}ffentlicht: 04. Dezember 2024 ; Gesehen am 10.06.2025}, journal={Astronomy and astrophysics}, doi={10.1051/0004-6361/202451893}, } @article{UBHD-69323520, author={Bernini Peron, Matheus and Marcolino, W. L. F. and Sander, Andreas A. C. and Bouret, J.-C. and Ramachandran, Varsha and Saling, J. and Schneider, Fabian and Oskinova, L. M. and Najarro, F.}, title={Clumping and X-rays in cooler B supergiant stars}, year={2023}, pages={1-27}, language={eng}, issn={1432-0746}, volume={677(2023) vom: Sept.}, number={Artikel-ID A50}, note={Gesehen am 31.03.2025 ; Online verf{\"u}gbar: 5 September 2023}, journal={Astronomy and astrophysics}, doi={10.1051/0004-6361/202346469}, } @article{UBHD-69355266, author={Bernini Peron, Matheus and Sander, Andreas A. C. and Ramachandran, Varsha and Oskinova, L. M. and Vink, J. S. and Verhamme, O. and Najarro, F. and Josiek, Joris and Brands, S. A. and Crowther, P. A. and Gómez-González, V. M. A. and Gormaz-Matamala, A. C. and Hawcroft, C. and Kuiper, R. and Mahy, L. and Marcolino, W. L. F. and Martins, L. P. and Mehner, A. and Parsons, T. N. and Pauli, D. and Shenar, T. and Schootemeijer, A. and Todt, H. and Loon, J. Th van}, title={X-shooting ULLYSES}, subtitle={massive stars at low metallicity : VII. Stellar and wind properties of B supergiants in the Small Magellanic Cloud}, year={2024}, pages={1-31}, language={eng}, issn={1432-0746}, volume={692(2024) vom: Dez.}, number={Artikel-ID A89}, note={Online ver{\"o}ffentlicht: 04. Dezember 2024 ; Gesehen am 11.06.2025}, journal={Astronomy and astrophysics}, doi={10.1051/0004-6361/202450475}, } @article{UBHD-69146459, author={Geen, Samuel Thomas and Agrawal, Poojan and Crowther, Paul A. and Keller, Benjamin W. and Koter, Alex de and Keszthelyi, Zsolt and Voort, Freeke van de and Ali, Ahmad A. and Backs, Frank and Bonne, Lars and Brugaletta, Vittoria and Derkink, Annelotte and Ekstr{\"o}m, Sylvia and Fichtner, Yvonne A. and Grassitelli, Luca and G{\"o}tberg, Ylva and Higgins, Erin R. and Laplace, Eva and Liow, Kong You and Lorenzo, Marta and McLeod, Anna F. and Meynet, Georges and Newsome, Megan and Oliva, G. André and Ramachandran, Varsha and Rey, Martin P. and Rieder, Steven and Romano-Díaz, Emilio and Sabhahit, Gautham and Sander, Andreas A. C. and Sarwar, Rafia and Stinshoff, Hanno and Stoop, Mitchel and Szécsi, Dorottya and Trebitsch, Maxime and Vink, Jorick S. and Winch, Ethan}, title={Bringing stellar evolution and feedback together}, subtitle={summary of proposals from the Lorentz Center workshop}, year={2023}, pages={1-17}, language={eng}, issn={1538-3873}, volume={135}, note={Gesehen am 27.11.2023}, journal={Publications of the Astronomical Society of the Pacific}, doi={10.1088/1538-3873/acb6b5}, } @article{UBHD-68939303, author={Geist, Emily and Gallagher, John S. and Kotulla, R. and Oskinova, Lidia M. and Hamann, W.-R. and Ramachandran, Varsha and Sabbi, Elena and Smith, L. and Kniazev, A. and Nota, A. and Rickard, M. J.}, title={Ionization and star formation in the giant H II region SMC-N66}, year={2022}, pages={1-11}, language={eng}, issn={1538-3873}, volume={134}, note={Gesehen am 08.09.2022}, journal={Publications of the Astronomical Society of the Pacific}, doi={10.1088/1538-3873/ac697b}, } @article{UBHD-69317683, author={Martins, Fabrice and Bouret, J.-C. and Hillier, D. J. and Brands, S. A. and Crowther, P. A. and Herrero, A. and Najarro, F. and Pauli, D. and Puls, J. and Ramachandran, Varsha and Sander, Andreas A. C. and Vink, J. S.}, title={X-shooting ULLYSES}, subtitle={massive stars at low metallicity : V. Effect of metallicity on surface abundances of O stars}, year={2024}, pages={1-50}, language={eng}, issn={1432-0746}, volume={689(2024) vom: Sept.}, number={Artikel-ID A31}, note={Online ver{\"o}ffentlicht: 30 August 2024 ; Gesehen am 12.03.2025}, journal={Astronomy and astrophysics}, doi={10.1051/0004-6361/202449457}, } @article{UBHD-68904755, author={Pauli, Daniel and Oskinova, Lidia M. and Hamann, W.-R. and Ramachandran, Varsha and Todt, H. and Sander, Andreas A. C. and Shenar, T. and Rickard, M. and Maíz Apellániz, J. and Prinja, R.}, title={The earliest O-type eclipsing binary in the small magellanic cloud, AzV 476}, subtitle={a comprehensive analysis reveals surprisingly low stellar masses}, year={2022}, pages={1-23}, language={eng}, issn={1432-0746}, volume={659}, number={Artikel-ID A9}, note={Gesehen am 12.04.2022}, journal={Astronomy and astrophysics}, doi={10.1051/0004-6361/202141738}, } @article{UBHD-69133598, author={Ramachandran, Varsha and Klencki, J. and Sander, Andreas A. C. and Pauli, D. and Shenar, T. and Oskinova, Lidia M. and Hamann, W.-R.}, title={A partially stripped massive star in a Be binary at low metallicity}, subtitle={a missing link towards Be X-ray binaries and double neutron star mergers}, year={2023}, pages={1-21}, language={eng}, issn={1432-0746}, volume={674(2023) vom: Juni}, number={Artikel-ID L 12}, note={Gesehen am 25.10.2023}, journal={Astronomy and astrophysics}, doi={10.1051/0004-6361/202346818}, } @article{UBHD-69010955, author={Ramachandran, Varsha and Oskinova, Lidia M. and Hamann, W.-R. and Sander, Andreas A. C. and Todt, H. and Pauli, D. and Shenar, T. and Torrejón, J. M. and Postnov, K. A. and Blondin, J. M. and Bozzo, E. and Hainich, R. and Massa, D.}, title={Phase-resolved spectroscopic analysis of the eclipsing black hole X-ray binary M33 X-7}, subtitle={system properties, accretion, and evolution}, year={2022}, pages={1-23}, language={eng}, issn={1432-0746}, volume={667(2022) vom: Nov.}, number={Artikel-ID A77}, note={Gesehen am 27.01.2023}, journal={Astronomy and astrophysics}, doi={10.1051/0004-6361/202243683}, } @article{UBHD-69292527, author={Ramachandran, Varsha}, title={Winds of OB stars}, subtitle={impact of metallicity, rotation and binary interaction}, year={2023}, pages={223-229}, language={eng}, issn={1743-9221}, volume={17}, number={S370 vom: Aug.}, note={Elektronische Reproduktion der Druck-Ausgabe ; Online publiziert: 16. August 2023 ; Gesehen am 20.01.2025}, journal={Proceedings of the International Astronomical Union}, doi={10.1017/S1743921322004720}, url={https://doi.org/10.1017/S1743921322004720}, library={UB}, } @article{UBHD-69354981, author={Ramachandran, Varsha and Sander, Andreas A. C. and Pauli, D. and Klencki, J. and Backs, F. and Tramper, F. and Bernini Peron, Matheus and Crowther, P. and Hamann, W.-R. and Ignace, R. and Kuiper, R. and Oey, M. S. and Oskinova, L. M. and Shenar, T. and Todt, H. and Vink, J. S. and Wang, L. and Wofford, A.}, title={X-shooting ULLYSES}, subtitle={massive stars at low metallicity : VIII. Stellar and wind parameters of newly revealed stripped stars in Be binaries}, year={2024}, pages={1-26}, language={eng}, issn={1432-0746}, volume={692(2024) vom: Dez.}, number={Artikel-ID A90}, note={Online ver{\"o}ffentlicht: 04. Dezember 2024 ; Gesehen am 10.06.2025}, journal={Astronomy and astrophysics}, doi={10.1051/0004-6361/202449665}, } @article{UBHD-69342396, author={Rickard, Matthew J. and Hainich, R. and Pauli, D. and Hamann, W.-R. and Oskinova, L. M. and Prinja, R. K. and Ramachandran, Varsha and Todt, H. and Sch{\"o}sser, Elisa C. and Sander, Andreas A. C. and Zeidler, P.}, title={Determining stellar properties of massive stars in NGC346 in the SMC with a Bayesian statistic technique}, year={2024}, pages={1-13}, language={eng}, issn={1432-0746}, volume={692(2024) vom: Dez.}, number={Artikel-ID A149}, note={Ver{\"o}ffentlicht: 09. Dezember 2024 ; Gesehen am 06.05.2025}, journal={Astronomy and astrophysics}, doi={10.1051/0004-6361/202450033}, } @article{UBHD-68997603, author={Rickard, Matthew J. and Hainich, R. and Hamann, W.-R. and Oskinova, Lidia M. and Prinja, R. K. and Ramachandran, Varsha and Pauli, D. and Todt, H. and Sander, Andreas A. C. and Shenar, T. and Chu, Y.-H. and Gallagher, J. S.}, title={Stellar wind properties of the nearly complete sample of O stars in the low metallicity young star cluster NGC 346 in the SMC galaxy}, year={2022}, pages={1-33}, language={eng}, issn={1432-0746}, volume={666}, number={Artikel-ID A189}, note={Gesehen am 15.12.2022}, journal={Astronomy and astrophysics}, doi={10.1051/0004-6361/202243281}, } @article{UBHD-69318576, author={Sander, Andreas A. C. and Bouret, J.-C. and Bernini Peron, Matheus and Puls, J. and Backs, F. and Berlanas, S. R. and Bestenlehner, J. M. and Brands, S. A. and Herrero, A. and Martins, F. and Maryeva, O. and Pauli, D. and Ramachandran, Varsha and Crowther, P. A. and Gómez-González, V. M. A. and Gormaz-Matamala, A. C. and Hamann, W.-R. and Hillier, D. J. and Kuiper, R. and Larkin, Cormac and Lefever, Roel and Mehner, A. and Najarro, F. and Oskinova, L. M. and Sch{\"o}sser, Elisa C. and Shenar, T. and Todt, H. and ud-Doula, A. and Vink, J. S.}, title={X-shooting ULLYSES}, subtitle={massive stars at low metallicity : IV. Spectral analysis methods and exemplary results for O stars}, year={2024}, pages={1-34}, language={eng}, issn={1432-0746}, volume={689(2024) vom: Sept.}, number={Artikel-ID A30}, note={Online ver{\"o}ffentlicht: 30 August 2024 ; Gesehen am 14.03.2025}, journal={Astronomy and astrophysics}, doi={10.1051/0004-6361/202449829}, } @article{UBHD-69339158, author={Shenar, Tomer and Bernini Peron, Matheus and González i Torà, Gemma and Josiek, Joris and Lefever, Roel and Ramachandran, Varsha and Sander, Andreas A. C. and Schneider, Fabian and Sch{\"o}sser, Elisa C.}, title={Binarity at LOw Metallicity (BLOeM)}, subtitle={a spectroscopic VLT monitoring survey of massive stars in the SMC}, year={2024}, pages={1-22}, language={eng}, issn={1432-0746}, volume={690(2024) vom: Okt.}, number={Artikel-ID A289}, note={Gesehen am 25.04.2025}, journal={Astronomy and astrophysics}, doi={10.1051/0004-6361/202451586}, } @article{UBHD-69356817, author={Telford, Grace and Chisholm, John and Sander, Andreas A. C. and Ramachandran, Varsha and McQuinn, Kristen B. W. and Berg, Danielle A.}, title={Observations of extremely metal-poor O stars}, subtitle={weak winds and constraints for evolution models}, year={2024}, pages={1-22}, language={eng}, issn={1538-4357}, volume={974}, note={Gesehen am 17.06.2025}, journal={The astrophysical journal}, doi={10.3847/1538-4357/ad697e}, } @article{UBHD-69279731, author={Vieu, Thibault and Larkin, Cormac and H{\"a}rer, L. and Reville, Brian and Sander, Andreas A. C. and Ramachandran, Varsha}, title={Hydrodynamic simulation of Cygnus OB2}, subtitle={the absence of a cluster wind termination shock}, year={2024}, pages={2174-2188}, language={eng}, issn={1365-2966}, volume={532}, number={2 vom: Aug.}, note={Online ver{\"o}ffentlicht: 2. Juli 2024 ; Gesehen am 03.12.2024}, journal={Monthly notices of the Royal Astronomical Society}, doi={10.1093/mnras/stae1627}, }