Zobrazeno 1 - 10
of 755
pro vyhledávání: '"Bustos, R"'
Autor:
Flores-Trivigno, M., Buccino, A. P., González, E., Colombo, P. D., González, C., Jaque-Arancibia, M., Bustos, R. V. Ibáñez, Saffe, C., Miquelarena, P., Alacoria, J., Collado, A.
The long-term solar magnetic activity and its cyclical behaviour, which is maintained by a dynamo mechanism, are both still challenging for the astrophysics. In particular, an atypical event occurred between 1645 and 1715 when the solar activity was
Externí odkaz:
http://arxiv.org/abs/2410.06142
Autor:
Restrepo, O. A., Lucero, F. I., Chaparro, G., Rodríguez, R., Pizarro, F., Bustos, R., Díaz, M., Mena, F. P.
Publikováno v:
Journal of Astronomical Instrumentation, Volume 12, id. 2350005, 2023
The sky-averaged cosmological 21 cm signal can improve our understanding of the evolution of the early Universe from the Dark Age to the end of the Epoch of Reionization. Although the EDGES experiment reported an absorption profile of this signal, th
Externí odkaz:
http://arxiv.org/abs/2312.01859
Autor:
Monsalve, R. A., Altamirano, C., Bidula, V., Bustos, R., Bye, C. H., Chiang, H. C., Diaz, M., Fernandez, B., Guo, X., Hendricksen, I., Hornecker, E., Lucero, F., Mani, H., McGee, F., Mena, F. P., Pessoa, M., Prabhakar, G., Restrepo, O., Sievers, J. L., Thyagarajan, N.
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 530, Issue 4, June 2024, Pages 4125-4147
The observation of the global 21 cm signal produced by neutral hydrogen gas in the intergalactic medium (IGM) during the Dark Ages, Cosmic Dawn, and Epoch of Reionization requires measurements with extremely well-calibrated wideband radiometers. We d
Externí odkaz:
http://arxiv.org/abs/2309.02996
Publikováno v:
A&A 672, A37 (2023)
Different approaches have been adopted to study short- and long-term stellar magnetic activity, and although the mechanisms by which low-mass stars generate large-scale magnetic fields are not well understood, it is known that stellar rotation plays
Externí odkaz:
http://arxiv.org/abs/2303.17237
Autor:
collaboration, CCAT-Prime, Aravena, M., Austermann, J. E., Basu, K., Battaglia, N., Beringue, B., Bertoldi, F., Bigiel, F., Bond, J. R., Breysse, P. C., Broughton, C., Bustos, R., Chapman, S. C., Charmetant, M., Choi, S. K., Chung, D. T., Clark, S. E., Cothard, N. F., Crites, A. T., Dev, A., Douglas, K., Duell, C. J., Dunner, R., Ebina, H., Erler, J., Fich, M., Fissel, L. M., Foreman, S., Gallardo, P. A., Gao, J., García, Pablo, Giovanelli, R., Golec, J. E., Groppi, C. E., Haynes, M. P., Henke, D., Hensley, B., Herter, T., Higgins, R., Hlozek, R., Huber, A., Huber, Z., Hubmayr, J., Jackson, R., Johnstone, D., Karoumpis, C., Keating, L. C., Komatsu, E., Li, Y., Magnelli, B., Matthews, B. C., Mauskopf, P., McMahon, J. J., Meerburg, P. D., Meyers, J., Muralidhara, V., Murray, N. W., Niemack, M. D., Nikola, T., Okada, Y., Puddu, R., Riechers, D. A., Rosolowsky, E., Rossi, K., Rotermund, K., Roy, A., Sadavoy, S. I., Schaaf, R., Schilke, P., Scott, D., Simon, R., Sinclair, Adrian K., Sivakoff, G. R., Stacey, G. J., Stutz, Amelia M., Stutzki, J., Tahani, M., Thanjavur, K., Timmermann, R. A., Ullom, J. N., van Engelen, A., Vavagiakis, E. M., Vissers, M. R., Wheeler, J. D., White, S. D. M., Zhu, Y., Zou, B.
We present a detailed overview of the science goals and predictions for the Prime-Cam direct detection camera/spectrometer being constructed by the CCAT-prime collaboration for dedicated use on the Fred Young Submillimeter Telescope (FYST). The FYST
Externí odkaz:
http://arxiv.org/abs/2107.10364
Autor:
Flores, M., Arancibia, M. Jaque, Bustos, R. V. Ibañez, Buccino, A. P., Galarza, J. Yana, Nuñez, N. E., Miquelarena, P., Alacoria, J., Saffe, C., Mauas, Pablo J. D.
Publikováno v:
A&A 645, L6 (2021)
Context. It is well known that from 1645 to 1715 solar activity was notably low and the number of sunspots was extremely reduced. This epoch is known as the Maunder Minimum (MM). The study of stars in prolonged activity minima like the MM could help
Externí odkaz:
http://arxiv.org/abs/2012.08983
Publikováno v:
A&A 644, A2 (2020)
Recently, new debates about the role of layers of strong shear have emerged in stellar dynamo theory. Further information on the long-term magnetic activity of fully convective stars could help determine whether their underlying dynamo could sustain
Externí odkaz:
http://arxiv.org/abs/2011.10391
We study the short and long-term variability of the spectroscopic binary SZ Pictoris, a southern RS CVn-type system. We used mid-resolution echelle spectra obtained at CASLEO spanning 18 years, and photometric data from the ASAS database V-band and f
Externí odkaz:
http://arxiv.org/abs/1910.11925
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