Zobrazeno 1 - 10
of 5 343
pro vyhledávání: '"Massive Stars"'
Autor:
Esteban Olivares, Michel Curé, Ignacio Araya, Ernesto Fabregas, Catalina Arcos, Natalia Machuca, Gonzalo Farias
Publikováno v:
Mathematics, Vol 12, Iss 20, p 3169 (2024)
This article presents a new algorithm that uses techniques from the field of artificial intelligence to automatically estimate the physical parameters of massive stars from a grid of stellar spectral models. This is the first grid to consider hydrody
Externí odkaz:
https://doaj.org/article/4fa9f4085dba467faeee1e15fa171b3e
Autor:
David R. Law, Calum Hawcroft, Linda J. Smith, Alexander W. Fullerton, Christopher J. Evans, Karl D. Gordon, Nimisha Kumari, Claus Leitherer
Publikováno v:
The Astrophysical Journal Letters, Vol 976, Iss 2, p L25 (2024)
We report the detection of broad, flat-topped emission in the fine-structure lines of [Ne v ], [Ne vi ], and [O iv ] in mid-infrared spectra of the O9 V star 10 Lacertae obtained with James Webb Space Telescope/Mid-Infrared Instrument. Optically thin
Externí odkaz:
https://doaj.org/article/b4ca37de2e744775a943b2ebb6526f7b
Autor:
Chen Wang, Julia Bodensteiner, Xiao-Tian Xu, Selma E. de Mink, Norbert Langer, Eva Laplace, Alejandro Vigna-Gómez, Stephen Justham, Jakub Klencki, Aleksandra Olejak, Ruggero Valli, Abel Schootemeijer
Publikováno v:
The Astrophysical Journal Letters, Vol 975, Iss 1, p L20 (2024)
Massive stars mainly form in close binaries, where their mutual interactions can profoundly alter their evolutionary paths. Evolved binaries consisting of a massive OB-type main-sequence star with a stripped helium star or a compact companion represe
Externí odkaz:
https://doaj.org/article/1b760492bfe243e786429ce597191f2d
Autor:
Antonio Martínez-Henares, Qizhou Zhang, Izaskun Jiménez-Serra, Jesús Martín-Pintado, Nuria Huélamo, Sirina Prasad, James Moran, Alejandro Báez-Rubio
Publikováno v:
The Astrophysical Journal Letters, Vol 971, Iss 1, p L7 (2024)
Jets and disk winds arise from materials with excess angular momentum ejected from the accretion disks in forming stars. How these structures are launched and how they impact the gas within the innermost regions of these objects remains poorly unders
Externí odkaz:
https://doaj.org/article/f9ccef8099b74e7e82d11689d054ab72
Autor:
F. Aharonian, F. Ait Benkhali, J. Aschersleben, H. Ashkar, M. Backes, V. Barbosa Martins, R. Batzofin, Y. Becherini, D. Berge, K. Bernlöhr, M. Böttcher, J. Bolmont, M. de Bony de Lavergne, J. Borowska, R. Brose, A. Brown, F. Brun, B. Bruno, C. Burger-Scheidlin, S. Casanova, J. Celic, M. Cerruti, T. Chand, S. Chandra, A. Chen, J. Chibueze, O. Chibueze, G. Cotter, P. Cristofari, J. Devin, A. Djannati-Ataï, J. Djuvsland, A. Dmytriiev, K. Egberts, S. Einecke, K. Feijen, M. Filipovic, G. Fontaine, S. Funk, S. Gabici, Y. A. Gallant, J. F. Glicenstein, J. Glombitza, G. Grolleron, L. Haerer, B. Heß, J. A. Hinton, W. Hofmann, T. L. Holch, D. Horns, Zhiqiu Huang, M. Jamrozy, F. Jankowsky, I. Jung-Richardt, E. Kasai, K. Katarzyński, R. Khatoon, B. Khélifi, W. Kluźniak, Nu. Komin, K. Kosack, D. Kostunin, A. Kundu, R. G. Lang, S. Le Stum, A. Lemière, M. Lemoine-Goumard, J.-P. Lenain, F. Leuschner, J. Mackey, V. Marandon, G. Martí-Devesa, R. Marx, A. Mehta, A. Mitchell, R. Moderski, M. O. Moghadam, L. Mohrmann, A. Montanari, E. Moulin, M. de Naurois, J. Niemiec, S. Ohm, L. Olivera-Nieto, E. de Ona Wilhelmi, M. Ostrowski, S. Panny, U. Pensec, G. Peron, G. Pühlhofer, A. Quirrenbach, S. Ravikularaman, M. Regeard, A. Reimer, O. Reimer, H. Ren, M. Renaud, B. Reville, F. Rieger, G. Rowell, B. Rudak, E. Ruiz-Velasco, K. Sabri, V. Sahakian, H. Salzmann, A. Santangelo, M. Sasaki, J. Schäfer, F. Schüssler, H. M. Schutte, H. Sol, S. Spencer, Ł. Stawarz, S. Steinmassl, C. Steppa, K. Streil, I. Sushch, A. M. Taylor, R. Terrier, M. Tsirou, N. Tsuji, C. van Eldik, M. Vecchi, C. Venter, J. Vink, S. J. Wagner, R. White, A. Wierzcholska, M. Zacharias, A. A. Zdziarski, A. Zech, N. Żywucka, H.E.S.S. Collaboration
Publikováno v:
The Astrophysical Journal Letters, Vol 970, Iss 1, p L21 (2024)
The Tarantula Nebula in the Large Magellanic Cloud is known for its high star formation activity. At its center lies the young massive star cluster R136, providing a significant amount of the energy that makes the nebula shine so brightly at many wav
Externí odkaz:
https://doaj.org/article/515ac386c4ec4105b2519206a14a4069
Publikováno v:
The Astrophysical Journal Letters, Vol 967, Iss 2, p L39 (2024)
Despite major progress in our understanding of massive stars, concerning discrepancies still remain between observations and theory. Most notable are the numerous stars observed beyond the theoretical main sequence, an evolutionary phase expected to
Externí odkaz:
https://doaj.org/article/b78b7f77c2ea41c8b95232a09a400873
Publikováno v:
The Astrophysical Journal Letters, Vol 966, Iss 1, p L20 (2024)
Type IIn supernovae (SNe) exhibit narrow hydrogen lines that arise from the strong interaction between ejecta and circumstellar material. It remains poorly understood, however, what progenitor stars give rise to these explosions. In this work, we per
Externí odkaz:
https://doaj.org/article/6cf282e6abd74012bf2f226a7034279b
Publikováno v:
The Astrophysical Journal Letters, Vol 966, Iss 1, p L7 (2024)
Accreting main-sequence stars expand significantly when the mass accretion timescale is much shorter than their thermal timescales. This occurs during mass transfer from an evolved giant star onto a main-sequence companion in a binary system and is a
Externí odkaz:
https://doaj.org/article/d57ad713863b4b6aa23a89518c0204df
Autor:
Thomas M. Gaudin, Jamie A. Kennea, M. J. Coe, I. M. Monageng, Andrzej Udalski, L. J. Townsend, David A. H. Buckley, Phil A. Evans
Publikováno v:
The Astrophysical Journal Letters, Vol 965, Iss 1, p L10 (2024)
We report on the discovery of Swift J010902.6-723710, a rare eclipsing Be/X-ray Binary system by the Swift SMC Survey (S-CUBED). Swift J010902.6-723710 was discovered via weekly S-CUBED monitoring observations when it was observed to enter a state of
Externí odkaz:
https://doaj.org/article/4887c9becd79413dae573ebbad619741
Publikováno v:
The Astrophysical Journal Letters, Vol 964, Iss 2, p L27 (2024)
The apparent tension between the luminosity functions of red supergiant (RSG) stars and of RSG progenitors of Type II supernovae (SNe) is often referred to as the RSG problem and it motivated some to suggest that many RSGs end their life without an S
Externí odkaz:
https://doaj.org/article/222fbe3400e941deac0ad0b2dba33359