Zobrazeno 1 - 10
of 437
pro vyhledávání: '"Katsukawa, Y"'
The advection of internetwork magnetic elements by supergranular convective flows is investigated using high spatial resolution, high cadence, and high signal-to-noise ratio Na I D1 magnetograms obtained with the Hinode satellite. The observations sh
Externí odkaz:
http://arxiv.org/abs/2401.06720
Autor:
Gosain, Sanjay, Pillet, V. Martinez, Pevtsov, A., Gilbert, H., Gibson, S., de Wijn, A. G., Burkepile, J., Asai, A., Bain, H. M., Henney, C. J., Katsukawa, Y., Lin, H., Manchester, W., McAteer, J., Muglach, K., Rast, M., Roth, M., Zhang, J.
Ground-based synoptic solar observations provide critical contextual data used to model the large-scale state of the heliosphere. The next decade will see a combination of ground-based telescopes and space missions that will study our Sun's atmospher
Externí odkaz:
http://arxiv.org/abs/2212.03247
Autor:
Pevtsov, Alexei A., Martinez-Pillet, V., Gilbert, H., de Wijn, A. G., Roth, M., Gosain, S., Upton, L. A., Katsukawa, Y., Burkepile, J., Zhang, Jie, Reardon, K. P., Bertello, L., Jain, K., Tripathy, S. C., Leka, K. D.
Long-term synoptic observations of the Sun are critical for advancing our understanding of Sun as an astrophysical object, understanding the solar irradiance and its role in solar-terrestrial climate, for developing predictive capabilities of solar e
Externí odkaz:
http://arxiv.org/abs/2211.06712
Autor:
Noda, C. Quintero, Barklem, P. S., Gafeira, R., Cobo, B. Ruiz, Collados, M., Carlsson, M., Pillet, V. Martínez, Suárez, D. Orozco, Uitenbroek, H., Katsukawa, Y.
Publikováno v:
A&A 652, A161 (2021)
Future ground-based telescopes will expand our capabilities for simultaneous multi-line polarimetric observations in a wide range of wavelengths, from the near-ultraviolet to the near-infrared. This creates a strong demand to compare candidate spectr
Externí odkaz:
http://arxiv.org/abs/2106.05084
Autor:
Noda, C. Quintero, Iijima, H., Katsukawa, Y., Shimizu, T., Carlsson, M., Rodríguez, J. de la Cruz, Cobo, B. Ruiz, Suárez, D. Orozco, Oba, T., Anan, T., Kubo, M., Kawabata, Y., Ichimoto, K., Suematsu, Y.
We investigate the diagnostic potential of the spectral lines at 850 nm for understanding the magnetism of the lower atmosphere. For that purpose, we use a newly developed 3D simulation of a chromospheric jet to check the sensitivity of the spectral
Externí odkaz:
http://arxiv.org/abs/1904.09151
Autor:
Noda, C. Quintero, Uitenbroek, H., Carlsson, M., Suárez, D. Orozco, Katsukawa, Y., Shimizu, T., Cobo, B. Ruiz, Kubo, M., Oba, T., Kawabata, Y., Hasegawa, T., Ichimoto, K., Anan, T., Suematsu, Y.
The next generation of solar observatories aim to understand the magnetism of the solar chromosphere. Therefore, it is crucial to understand the polarimetric signatures of chromospheric spectral lines. For this purpose, we here examine the suitabilit
Externí odkaz:
http://arxiv.org/abs/1810.01067
Autor:
Bueno, J. Trujillo, Štěpán, J., Belluzzi, L., Ramos, A. Asensio, Sainz, R. Manso, Alemán, T. del Pino, Casini, R., Ishikawa, R., Kano, R., Winebarger, A., Auchère, F., Narukage, N., Kobayashi, K., Bando, T., Katsukawa, Y., Kubo, M., Ishikawa, S., Giono, G., Hara, H., Suematsu, Y., Shimizu, T., Sakao, T., Tsuneta, S., Ichimoto, K., Cirtain, J., Champey, P., De Pontieu, B., Carlsson, M.
The Chromospheric Lyman-Alpha Spectro-Polarimeter (CLASP) is a suborbital rocket experiment that on 3rd September 2015 measured the linear polarization produced by scattering processes in the hydrogen Ly-$\alpha$ line of the solar disk radiation, who
Externí odkaz:
http://arxiv.org/abs/1809.08865
Autor:
Stepan, J., Bueno, J. Trujillo, Belluzzi, L., Ramos, A. Asensio, Sainz, R. Manso, Aleman, T. del Pino, Casini, R., Kano, R., Winebarger, A., Auchere, F., Ishikawa, R., Narukage, N., Kobayashi, K., Bando, T., Katsukawa, Y., Kubo, M., Ishikawa, S., Giono, G., Hara, H., Suematsu, Y., Shimizu, T., Sakao, T., Tsuneta, S., Ichimoto, K., Cirtain, J., Champey, P., De Pontieu, B., Carlsson, M.
On 3rd September 2015, the Chromospheric Lyman-Alpha SpectroPolarimeter (CLASP) successfully measured the linear polarization produced by scattering processes in the hydrogen Lyman-$\alpha$ line of the solar disk radiation, revealing conspicuous spat
Externí odkaz:
http://arxiv.org/abs/1808.02725
Autor:
Noda, C. Quintero, Villanueva, G. L., Katsukawa, Y., Solanki, S. K., Suárez, D. Orozco, Cobo, B. Ruiz, Shimizu, T., Oba, T., Kubo, M., Anan, T., Ichimoto, K., Suematsu, Y.
Publikováno v:
A&A 610, A79 (2018)
Of the two solar lines, K I $D_1$ and $D_2$, almost all attention so far has been devoted to the $D_1$ line, as $D_2$ is severely affected by an O$_2$ atmospheric band. This, however, makes the latter appealing for balloon and space observations from
Externí odkaz:
http://arxiv.org/abs/1801.01655
Autor:
Noda, C. Quintero, Kato, Y., Katsukawa, Y., Oba, T., Rodríguez, J. de la Cruz, Carlsson, M., Shimizu, T., Suárez, D. Orozco, Cobo, B. Ruiz, Kubo, M., Anan, T., Ichimoto, K., Suematsu, Y.
In this publication we continue the work started in Quintero Noda et al. (2017) examining this time a numerical simulation of a magnetic flux tube concentration. Our goal is to study if the physical phenomena that take place in it, in particular, the
Externí odkaz:
http://arxiv.org/abs/1708.01333