Zobrazeno 1 - 10
of 241
pro vyhledávání: '"Kaper, Lex"'
Autor:
Stoop, Mitchel, de Koter, Alex, Kaper, Lex, Brands, Sarah, Zwart, Simon Portegies, Sana, Hugues, Stoppa, Fiorenzo, Gieles, Mark, Mahy, Laurent, Shenar, Tomer, Guo, Difeng, Nelemans, Gijs, Rieder, Steven
Massive stars are predominantly born in stellar associations or clusters. Their radiation fields, stellar winds, and supernovae strongly impact their local environment. In the first few million years of a cluster's life, massive stars are dynamically
Externí odkaz:
http://arxiv.org/abs/2410.06255
Autor:
Backs, Frank, Brands, S. A., Ramírez-Tannus, M. C., Derkink, A. R., de Koter, A., Poorta, J., Puls, J., Kaper, Lex
The outcome of the formation of massive stars is an important anchor point in their evolution. It provides insight into the physics of the assembly process, and sets the conditions for stellar evolution. We characterize a population of 18 highly redd
Externí odkaz:
http://arxiv.org/abs/2408.11713
Autor:
Derkink, Annelotte, Ginski, Christian, Pinilla, Paola, Kurtovic, Nicolas, Kaper, Lex, de Koter, Alex, Valegård, Per-Gunnar, Mamajek, Eric, Backs, Frank, Benisty, Myriam, Birnstiel, Til, Columba, Gabriele, Dominik, Carsten, Garufi, Antonio, Hogerheijde, Michiel, van Holstein, Rob, Huang, Jane, Ménard, François, Rab, Christian, Ramírez-Tannus, María Claudia, Ribas, Álvaro, Williams, Jonathan P., Zurlo, Alice
The interplay between T Tauri stars and their circumstellar disks, and how this impacts the onset of planet formation has yet to be established. We studied a seemingly old T Tauri star, PDS 111, and its disk. We analyzed optical, infrared, and sub-mi
Externí odkaz:
http://arxiv.org/abs/2406.04160
Autor:
Stoop, Mitchel, Derkink, Annelotte, Kaper, Lex, de Koter, Alex, Rogers, Ciaran, Ramírez-Tannus, Maria Claudia, Guo, Difeng, Azatyan, Naira
The fraction of massive stars in young stellar clusters is of importance as they are the dominant sources of both mechanical and radiative feedback, strongly influencing the thermal and dynamical state of their birth environments. It turns out that a
Externí odkaz:
http://arxiv.org/abs/2311.04174
Autor:
Farhang, Amin, Smoker, Jonathan, Cox, Nick L. J., Cami, Jan, Linnartz, Harold, van Loon, Jacco Th., Cordiner, Martin A., Sarre, Peter J., Khosroshahi, Habib G., Ehrenfreund, Pascale, Foing, Bernard H., Kaper, Lex, Laverick, Mike
Publikováno v:
A&A 678, A148 (2023)
Interstellar lines observed toward stellar targets change slowly over long timescales, mainly due to the proper motion of the background target relative to the intervening clouds. On longer timescales, the cloud's slowly changing physical and chemica
Externí odkaz:
http://arxiv.org/abs/2308.14027
Autor:
Brands, Sarah A., de Koter, Alex, Bestenlehner, Joachim M., Crowther, Paul A., Kaper, Lex, Caballero-Nieves, Saida M., Gräfener, Götz
Publikováno v:
A&A 673, A132 (2023)
The cluster R136 in the giant star-forming region 30 Doradus in the Large Magellanic Cloud (LMC) offers a unique opportunity to resolve a stellar population in a starburst-like environment. We obtain the near-infrared to ultraviolet extinction toward
Externí odkaz:
http://arxiv.org/abs/2303.09374
Autor:
Stoop, Mitchel, Kaper, Lex, de Koter, Alex, Guo, Difeng, Lamers, Henny J. G. L. M., Rieder, Steven
Publikováno v:
A&A 670, A108 (2023)
In the first few Myr the massive stars dynamically interact, produce runaways and affect the initial binary population. Observing and interpreting the dynamics of young massive clusters is key to our understanding of the star formation process and pr
Externí odkaz:
http://arxiv.org/abs/2207.08452
We present a spectroscopic analysis of the most rapidly rotating stars currently known, VFTS 102 ($v_{e} \sin i = 649 \pm 52$ km s$^{-1}$; O9: Vnnne+) and VFTS 285 ($v_{e} \sin i = 610 \pm 41$ km s$^{-1}$; O7.5: Vnnn), both members of the 30 Dor comp
Externí odkaz:
http://arxiv.org/abs/2204.07473
Autor:
Brands, Sarah A., de Koter, Alex, Bestenlehner, Joachim M., Crowther, Paul A., Sundqvist, Jon O., Puls, Joachim, Caballero-Nieves, Saida M., Abdul-Masih, Michael, Driessen, Florian A., García, Miriam, Geen, Sam, Gräfener, Götz, Hawcroft, Calum, Kaper, Lex, Keszthelyi, Zsolt, Langer, Norbert, Sana, Hugues, Schneider, Fabian R. N., Shenar, Tomer, Vink, Jorick S.
Publikováno v:
A&A 663, A36 (2022)
Context: The star cluster R136 inside the LMC hosts a rich population of massive stars, including the most massive stars known. The strong stellar winds of these very luminous stars impact their evolution and the surrounding environment. We currently
Externí odkaz:
http://arxiv.org/abs/2202.11080
A significant fraction of the most massive stars move through space with a high velocity. One of the possible physical explanations is that a supernova in a compact binary system results in a high recoil velocity of the system. If the system remains
Externí odkaz:
http://arxiv.org/abs/2108.12918