Zobrazeno 1 - 10
of 2 119
pro vyhledávání: '"Takami, M"'
Autor:
Donati, J. -F., Cristofari, P. I., Alencar, S. H. P., Kóspál, Á., Bouvier, J., Moutou, C., Carmona, A., Gregorio-Hetem, J., Manara, C. F., Artigau, E., Doyon, R., Takami, M., Shang, H., Nascimento, J. Dias do, Ménard, F., Gaidos, E., team, the SPIRou science
This paper presents near-infrared spectropolarimetric and velocimetric observations of the young planet-hosting T Tauri star PDS 70, collected with SPIRou at the 3.6m Canada-France-Hawaii Telescope from 2020 to 2024. Clear Zeeman signatures from magn
Externí odkaz:
http://arxiv.org/abs/2411.03089
Autor:
Donati, J. -F., Cristofari, P. I., Lehmann, L. T., Moutou, C., Alencar, S. H. P., Bouvier, J., Arnold, L., Delfosse, X., Artigau, E., Cook, N., Kóspál, Á., Ménard, F., Baruteau, C., Takami, M., Cabrit, S., Hébrard, G., Doyon, R., team, the SPIRou science
In this paper we report near-infrared observations of the classical T Tauri star TW Hya with the SPIRou high-resolution spectropolarimeter and velocimeter at the 3.6-m Canada-France-Hawaii Telescope in 2019, 2020, 2021 and 2022. By applying Least-Squ
Externí odkaz:
http://arxiv.org/abs/2405.04461
Autor:
Donati, J. -F., Finociety, B., Cristofari, P. I., Alencar, S. H. P., Moutou, C., Delfosse, X., Fouqué, P, Arnold, L., Baruteau, C., Kóspál, Á., Ménard, F., Carmona, A., Grankin, K., Takami, M., Artigau, E., Doyon, R., Hébrard, G., collaboration, the SLS
We report new observations of the classical T~Tauri star CI~Tau with the SPIRou near-infrared spectropolarimeter and velocimeter at the Canada-France-Hawaii Telescope (CFHT) in late 2019, 2020 and 2022, complemented with observations obtained with th
Externí odkaz:
http://arxiv.org/abs/2403.02166
Autor:
Weber, P., Pérez, S., Zurlo, A., Miley, J., Hales, A., Cieza, L., Principe, D., Cárcamo, M., Garufi, A., Kóspál, Á., Takami, M., Kastner, J., Zhu, Z., Williams, J.
The formation of giant planets has traditionally been divided into two pathways: core accretion and gravitational instability. However, in recent years, gravitational instability has become less favored, primarily due to the scarcity of observations
Externí odkaz:
http://arxiv.org/abs/2307.13433
Autor:
Garcia, E. Victor, Currie, Thayne, Guyon, Olivier, Stassun, Keivan G., Jovanovic, Nemanja, Lozi, Julien, Kudo, Tomoyuki, Doughty, Danielle, Schlieder, Josh, Kwon, J., Uyama, T., Kuzuhara, M., Carson, J. C., Nakagawa, T., Hashimoto, J., Kusakabe, N., Abe, L., Brandner, W., Brandt, T. D., Feldt, M., Goto, M., Grady, C. A., Hayano, Y., Hayashi, M., Hayashi, S. S., Henning, T., Hodapp, K. W., Ishii, M., Iye, M., Janson, M., Kandori, R., Knapp, G. R., Matsuo, T., McElwain, M. W., Miyama, S., Morino, J.-I., Moro-Martin, A., Nishimura, T., Pyo, T.-S., Serabyn, E., Suenaga, T., Suto, H., Suzuki, R., Takahashi, Y. H., Takami, H., Takami, M., Takato, N., Terada, H., Thalmann, C., Turner, E. L., Watanabe, M., Wisniewski, J., Yamada, T., Usuda, T., Tamura, M.
We present high signal-to-noise ratio, precise Y JH photometry and Y band (0.957-1.120 mu m) spectroscopy of HD 1160 B, a young substellar companion discovered from the Gemini NICI Planet Finding Campaign using the Subaru Coronagraphic Extreme Adapti
Externí odkaz:
http://hdl.handle.net/10150/623097
http://arizona.openrepository.com/arizona/handle/10150/623097
http://arizona.openrepository.com/arizona/handle/10150/623097
Autor:
Hełminiak, K. G., Kuzuhara, M., Mede, K., Brandt, T. D., Kandori, R., Suenaga, T., Kusakabe, N., Narita, N., Carson, J. C., Currie, T., Kudo, T., Hashimoto, J., Abe, L., Akiyama, E., Brandner, W., Feldt, M., Goto, M., Grady, C. A., Guyon, O., Hayano, Y., Hayashi, M., Hayashi, S. S., Henning, T., Hodapp, K. W., Ishii, M., Iye, M., Janson, M., Knapp, G. R., Kwon, J., Matsuo, T., McElwain, M. W., Miyama, S., Morino, J.-I., Moro-Martin, A., Nishimura, T., Ryu, T., Pyo, T.-S., Serabyn, E., Suto, H., Suzuki, R., Takahashi, Y. H., Takami, M., Takato, N., Terada, H., Thalmann, C., Turner, E. L., Watanabe, M., Wisniewski, J., Yamada, T., Takami, H., Usuda, T., Tamura, M.
We report the direct imaging detection of a low-mass companion to a young, moderately active star V450. And, that was previously identified with the radial velocity (RV) method. The companion was found in high-contrast images obtained with the Subaru
Externí odkaz:
http://hdl.handle.net/10150/622454
http://arizona.openrepository.com/arizona/handle/10150/622454
http://arizona.openrepository.com/arizona/handle/10150/622454
Autor:
Martioli, Eder, Hébrard, Guillaume, Fouqué, Pascal, Artigau, Étienne, Donati, Jean-François, Cadieux, Charles, Bellotti, Stefano, Etangs, Alain Lecavelier des, Doyon, Réne, Nascimento Jr., J. -D. do, Arnold, L., Carmona, A., Cook, N. J., Cortes-Zuleta, P., de Almeida, L., Delfosse, X., Folsom, C. P., König, P. -C., Moutou, C., Ould-Elhkim, M., Petit, P., Stassun, K. G., Vidotto, A. A., Vandal, T., Benneke, B., Boisse, I., Bonfils, X., Boyd, P., Brasseur, C., Charbonneau, D., Cloutier, R., Collins, K., Cristofari, P., Crossfield, I., Díaz, R. F., Fausnaugh, M., Figueira, P., Forveille, T., Furlan, E., Girardin, E., Gnilka, C. L., da Silva, J. Gomes, Gu, P. -G., Guerra, P., Howell, S. B., Hussain, G. A. J., Jenkins, J. M., Kiefer, F., Latham, D. W., Matson, R. A., Matthews, E. C., Morin, J., Naves, R., Ricker, G., Seager, S., Takami, M., Twicken, J. D., Vanderburg, A., Vanderspek, R., Winn, J.
Publikováno v:
A&A 660, A86 (2022)
We report the detection and characterization of the transiting sub-Neptune TOI-1759 b, using photometric time-series from TESS and near infrared spectropolarimetric data from SPIRou on the CFHT. TOI-1759 b orbits a moderately active M0V star with an
Externí odkaz:
http://arxiv.org/abs/2202.01259
Autor:
Kóspál, Á., de Miera, F. Cruz-Sáenz, White, J. A., Ábrahám, P., Chen, L., Csengeri, T., Dong, R., Dunham, M. M., Fehér, O., Green, J. D., Hashimoto, J., Henning, Th., Hogerheijde, M., Kudo, T., Liu, H. B., Takami, M., Vorobyov, E. I.
FU Orionis-type objects (FUors) are low-mass pre-main sequence stars undergoing a temporary, but significant increase of mass accretion rate from the circumstellar disk onto the protostar. It is not yet clear what triggers the accretion bursts and wh
Externí odkaz:
http://arxiv.org/abs/2106.14409
Autor:
Kamp, I., Honda, M., Nomura, H., Audard, M., Fedele, D., Waters, L. B. F. M., Aikawa, Y., Banzatti, A., Bowey, J. E., Bradford, M., Dominik, C., Furuya, K., Habart, E., Ishihara, D., Johnstone, D., Kennedy, G., Kim, M., Kral, Q., Lai, S. P., Larsson, B., McClure, M., Miotello, A., Momose, M., Nakagawa, T., Naylor, D., Nisini, B., Notsu, S., Onaka, T., Pantin, E., Podio, L., Marichalar, P. Riviere, Rocha, W. R. M., Roelfsema, P., Santos, F., Shimonishi, T., Tang, Y. W., Takami, M., Tazaki, R., Wolf, S., Wyatt, M., Ysard, N.
In this era of spatially resolved observations of planet forming disks with ALMA and large ground-based telescopes such as the VLT, Keck and Subaru, we still lack statistically relevant information on the quantity and composition of the material that
Externí odkaz:
http://arxiv.org/abs/2106.13782
The secondary of the famous young binary RW Aur is much less studied than the primary. To compensate this shortcoming, we present here the results of UBVRIJHK photometric, VRI polarimetric and optical spectral observations of RW Aur B. The star demon
Externí odkaz:
http://arxiv.org/abs/2007.12559