Zobrazeno 1 - 10
of 570
pro vyhledávání: '"Nazé, Y"'
Radio surveys of early-type stars have revealed a number of non-thermal emitters. Most of these have been shown to be binaries, where the collision between the two stellar winds is responsible for the non-thermal emission. HD 168112 is a non-thermal
Externí odkaz:
http://arxiv.org/abs/2405.03247
The initial distribution of rotational velocities of stars is still poorly known, and how the stellar spin evolves from birth to the various end points of stellar evolution is an actively debated topic. Binary interactions are often invoked to explai
Externí odkaz:
http://arxiv.org/abs/2401.11304
Autor:
Das, B., Petit, V., Nazé, Y., Corcoran, M. F., Cohen, D. H., Biswas, A., Chandra, P., David-Uraz, A., Leutenegger, M. A., Neiner, C., Pablo, H., Paunzen, E., Shultz, M. E., ud-Doula, A., Wade, G. A.
We report detailed X-ray observations of the unique binary system $\epsilon$ Lupi, the only known short-period binary consisting of two magnetic early-type stars. The components have comparably strong, but anti-aligned magnetic fields. The orbital an
Externí odkaz:
http://arxiv.org/abs/2304.12882
The IACOB project VIII. Searching for empirical signatures of binarity in fast-rotating O-type stars
Autor:
Britavskiy, N., Simón-Díaz, S., Holgado, G., Burssens, S., Apellániz, J. Maíz, Eldridge, J. J., Nazé, Y., González, M. Pantaleoni, Herrero, A.
Publikováno v:
A&A 672, A22 (2023)
The empirical distribution of projected rotational velocities (vsini) in massive O-type stars is characterized by a dominant slow velocity component and a tail of fast rotators. Binary interaction has been proposed to play a dominant role in the form
Externí odkaz:
http://arxiv.org/abs/2302.01349
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:
ud-Doula, Asif, Cheung, M. C. M., David-Uraz, A., Erba, C., Folsom, C. P., Gayley, K., Naze, Y., Neiner, C., Petit, V., Prinja, R., Shultz, M. E., Sudnik, N., Vink, J. S., Wade, G. A.
Several space missions and instruments for UV spectropolarimetry are in preparation, such as the proposed NASA MIDEX Polstar project, the proposed ESA M mission Arago, and the Pollux instrument on the future LUVOIR-like NASA flagship mission. In the
Externí odkaz:
http://arxiv.org/abs/2206.12838
Autor:
González-Perez, J. N., Mittag, M., Schmitt, J. H. M. M., Schröder, K. -P., Jack, D., Rauw, G., Nazé, Y.
TIGRE (Telescopio Internacional de Guanajuato Rob\'otico Espectrosc\'opico) has been operating in fully robotic mode in the Observatory La Luz (Guanajuato, Mexico) since the end of 2013. With its sole instrument, HEROS, an \'echelle spectrograph with
Externí odkaz:
http://arxiv.org/abs/2206.02832
Autor:
Jones, C. E., Labadie-Bartz, J., Cotton, D. V., Nazé, Y., Peters, G. J., Hillier, D. J., Neiner, C., Richardson, N. D., Hoffman, J. L., Carciofi, A. C., Wisniewski, J. P., Gayley, K. G., Suffak, M. W., Ignace, R., Scowen, P. A.
Publikováno v:
Astrophysics and Space Science, Volume 367, Issue 12, article id.124, December 2022
UV spectroscopy and spectropolarimetry hold the key to understanding certain aspects of massive stars that are largely inaccessible with optical or longer wavelength observations. This is especially true for the rapidly-rotating Be and Bn stars, owin
Externí odkaz:
http://arxiv.org/abs/2111.07926
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:
Erba, C., David-Uraz, A., Petit, V., Hennicker, L., Fletcher, C., Fullerton, A. W., Nazé, Y., Sundqvist, J., ud-Doula, A.
Recent large-scale spectropolarimetric surveys have established that a small but significant percentage of massive stars host stable, surface dipolar magnetic fields with strengths on the order of kG. These fields channel the dense, radiatively drive
Externí odkaz:
http://arxiv.org/abs/2106.13676