Zobrazeno 1 - 10
of 140
pro vyhledávání: '"Keszthelyi, Z."'
At metallicities lower than that of the Small Magellanic Cloud, it remains essentially unexplored how fossil magnetic fields, forming large-scale magnetospheres, could affect the evolution of massive stars, thereby impacting the fundamental building
Externí odkaz:
http://arxiv.org/abs/2407.20492
Autor:
Shenar, T., Bodensteiner, J., Sana, H., Crowther, P. A., Lennon, D. J., Abdul-Masih, M., Almeida, L. A., Backs, F., Berlanas, S. R., Bernini-Peron, M., Bestenlehner, J. M., Bowman, D. M., Bronner, V. A., Britavskiy, N., de Koter, A., de Mink, S. E., Deshmukh, K., Evans, C. J., Fabry, M., Gieles, M., Gilkis, A., González-Torà, G., Gräfener, G., Götberg, Y., Hawcroft, C., Hénault-Brunet, V., Herrero, A., Holgado, G., Janssens, S., Johnston, C., Josiek, J., Justham, S., Kalari, V. M., Katabi, Z. Z., Keszthelyi, Z., Klencki, J., Kubát, J., Kubátová, B., Langer, N., Lefever, R. R., Ludwig, B., Mackey, J., Mahy, L., Apellániz, J. Maíz, Mandel, I., Maravelias, G., Marchant, P., Menon, A., Najarro, F., Oskinova, L. M., Ovadia, R., Patrick, L. R., Pauli, D., Pawlak, M., Ramachandran, V., Renzo, M., Rocha, D. F., Sander, A. A. C., Sayada, T., Schneider, F. R. N., Schootemeijer, A., Schösser, E. C., Schürmann, C., Sen, K., Shahaf, S., Simón-Díaz, S., Stoop, M., van Loon, J. Th., Toonen, S., Tramper, F., Valli, R., van Son, L. A. C., Vigna-Gómez, A., Villaseñor, J. I., Vink, J. S., Wang, C., Willcox, R.
Surveys in the Milky Way and Large Magellanic Cloud revealed that the majority of massive stars will interact with companions during their lives. However, knowledge of the binary properties of massive stars at low metallicity, which approaches the co
Externí odkaz:
http://arxiv.org/abs/2407.14593
Autor:
Vink, Jorick S., Mehner, A., Crowther, P. A., Fullerton, A., Garcia, M., Martins, F., Morrell, N., Oskinova, L. M., St-Louis, N., ud-Doula, A., Sander, A. A. C., Sana, H., Bouret, J. -C., Kubatova, B., Marchant, P., Martins, L. P., Wofford, A., van Loon, J. Th., Telford, O. Grace, Gotberg, Y., Bowman, D. M., Erba, C., Kalari, V. M., Abdul-Masih, M., Alkousa, T., Backs, F., Barbosa, C. L., Berlanas, S. R., Bernini-Peron, M., Bestenlehner, J. M., Blomme, R., Bodensteiner, J., Brands, S. A., Evans, C. J., David-Uraz, A., Driessen, F. A., Dsilva, K., Geen, S., Gomez-Gonzalez, V. M. A., Grassitelli, L., Hamann, W. -R., Hawcroft, C., Herrero, A., Higgins, E. R., Hillier, D. John, Ignace, R., Istrate, A. G., Kaper, L., Kee, N. D., Kehrig, C., Keszthelyi, Z., Klencki, J., de Koter, A., Kuiper, R., Laplace, E., Larkin, C. J. K., Lefever, R. R., Leitherer, C., Lennon, D. J., Mahy, L., Apellaniz, J. Maiz, Maravelias, G., Marcolino, W., McLeod, A. F., de Mink, S. E., Najarro, F., Oey, M. S., Parsons, T. N., Pauli, D., Pedersen, M. G., Prinja, R. K., Ramachandran, V., Ramirez-Tannus, M. C., Sabhahit, G. N., Schootemeijer, A., Serantes, S. Reyero, Shenar, T., Stringfellow, G. S., Sudnik, N., Tramper, F., Wang, L.
Publikováno v:
A&A 675, A154 (2023)
Observations of individual massive stars, super-luminous supernovae, gamma-ray bursts, and gravitational-wave events involving spectacular black-hole mergers, indicate that the low-metallicity Universe is fundamentally different from our own Galaxy.
Externí odkaz:
http://arxiv.org/abs/2305.06376
Autor:
Keszthelyi, Z.
Publikováno v:
Galaxies 2023, 11, 40
Magnetism is a ubiquitous property of astrophysical plasmas, yet stellar magnetism still remains far from being completely understood. In this review, we describe recent observational and modelling efforts and progress to expand our knowledge of the
Externí odkaz:
http://arxiv.org/abs/2303.02878
Autor:
Keszthelyi, Z., de Koter, A., Götberg, Y., Meynet, G., Brands, S. A., Petit, V., Carrington, M., David-Uraz, A., Geen, S. T., Georgy, C., Hirschi, R., Puls, J., Ramalatswa, K. J., Shultz, M. E., ud-Doula, A.
Magnetism can greatly impact the evolution of stars. In some stars with OBA spectral types there is direct evidence via the Zeeman effect for stable, large-scale magnetospheres, which lead to the spin-down of the stellar surface and reduced mass loss
Externí odkaz:
http://arxiv.org/abs/2211.07060
Autor:
Keszthelyi, Z., de Koter, A., Götberg, Y., Meynet, G., Brands, S. A., Petit, V., Carrington, M., David-Uraz, A., Geen, S. T., Georgy, C., Hirschi, R., Puls, J., Ramalatswa, K. J., Shultz, M. E., ud-Doula, A.
Magnetic fields can drastically change predictions of evolutionary models of massive stars via mass-loss quenching, magnetic braking, and efficient angular momentum transport, which we aim to quantify in this work. We use the MESA software instrument
Externí odkaz:
http://arxiv.org/abs/2209.06350
Autor:
Shultz, M. E., Casini, R., Cheung, M. C. M., David-Uraz, A., Alemán, T. del Pino, Erba, C., Folsom, C. P., Gayley, K., Ignace, R., Keszthelyi, Z., Kochukhov, O., Nazé, Y., Neiner, C., Oksala, M., Petit, V., Scowen, P. A., Sudnik, N., ud-Doula, A., Vink, J. S., Wade, G. A.
Polstar is a proposed NASA MIDEX space telescope that will provide high-resolution, simultaneous full-Stokes spectropolarimetry in the far ultraviolet, together with low-resolution linear polarimetry in the near ultraviolet. This observatory offers u
Externí odkaz:
http://arxiv.org/abs/2207.12970
Autor:
Shultz, M. E., Casini, R., Cheung, M. C. M., David-Uraz, A., Alemán, T. del Pino, Erba, C., Folsom, C. P., Gayley, K., Ignace, R., Keszthelyi, Z., Kochukhov, O., Nazé, Y., Neiner, C., Oksala, M., Petit, V., Scowen, P. A., Sudnik, N., ud-Doula, A., Vink, J. S., Wade, G. A.
Polstar is a proposed NASA MIDEX space telescope that will provide high-resolution, simultaneous full-Stokes spectropolarimetry in the far ultraviolet, together with low-resolution linear polarimetry in the near ultraviolet. In this white paper, we d
Externí odkaz:
http://arxiv.org/abs/2111.06434
Autor:
Song, H. F., Meynet, G., Maeder, A., Mowlavi, N., Stroud, S. R., Keszthelyi, Z., Ekstrom, S., Eggenberger, P., Georgy, C., Wade, G. A., Qin, Y.
Publikováno v:
A&A 657, A60 (2022)
Sigma Ori E, a massive helium B-type star, shows a high surface rotation and a strong surface magnetic field potentially challenging the process of wind magnetic braking. The Gaia satellite provides an accurate distance to that star and confirms its
Externí odkaz:
http://arxiv.org/abs/2108.13734
Publikováno v:
A&A 650, A125 (2021)
Magnetic fields influence the formation and evolution of stars and impact the observed stellar properties. Ap stars (magnetic A-type stars) are a prime example of this. Access to precise and accurate determinations of their stellar fundamental proper
Externí odkaz:
http://arxiv.org/abs/2104.08097