Atmospheric retrieval of Subaru/IRD high-resolution spectrum of the archetype T-type brown dwarf Gl 229 B

Autor: Kawashima, Yui, Kawahara, Hajime, Kasagi, Yui, Ishikawa, Hiroyuki Tako, Masuda, Kento, Kotani, Takayuki, Kudo, Tamoyuki, Hirano, Teruyuki, Kuzuhara, Masayuki, Nugroho, Stevanus K, Livingston, John, Harakawa, Hiroki, Nishikawa, Jun, Omiya, Masashi, Takarada, Takuya, Tamura, Motohide, Ueda, Akitoshi

Brown dwarfs provide a unique opportunity to study atmospheres and their physical and chemical processes with high precision, especially in temperature ranges relevant to exoplanets. In this study, we performed high-resolution ($R \sim 70,000$) spect

Externí odkaz: http://arxiv.org/abs/2410.11561

Gliese 12 b: A temperate Earth-sized planet at 12 pc ideal for atmospheric transmission spectroscopy

Autor: Kuzuhara, M., Fukui, A., Livingston, J. H., Caballero, J. A., de Leon, J. P., Hirano, T., Kasagi, Y., Murgas, F., Narita, N., Omiya, M., Orell-Miquel, Jaume, Palle, E., Changeat, Q., Esparza-Borges, E., Harakawa, H., Hellier, C., Hori, Yasunori, Ikuta, Kai, Ishikawa, H. T., Kodama, T., Kotani, T., Kudo, T., Morales, J. C., Mori, M., Nagel, E., Parviainen, H., Perdelwitz, V., Reiners, A., Ribas, I., Sanz-Forcada, J., Sato, B., Schweitzer, A., Tabernero, H. M., Takarada, T., Uyama, T., Watanabe, N., Zechmeister, M., García, N. Abreu, Aoki, W., Beichman, C., Béjar, V. J. S., Brandt, T. D., Calatayud-Borras, Y., Carleo, I., Charbonneau, D., Collins, K. A., Currie, T., Doty, J. P., Dreizler, S., Fernández-Rodríguez, G., Fukuda, I., Galán, D., Geraldía-González, S., González-Garcia, J., Hayashi, Y., Hedges, C., Henning, T., Hodapp, K., Ikoma, M., Isogai, K., Jacobson, S., Janson, M., Jenkins, J. M., Kagetani, T., Kambe, E., Kawai, Y., Kawauchi, K., Kokubo, E., Konishi, M., Korth, J., Krishnamurthy, V., Kurokawa, T., Kusakabe, N., Kwon, J., Laza-Ramos, A., Libotte, F., Luque, R., Madrigal-Aguado, A., Matsumoto, Y., Mawet, D., McElwain, M. W., Gallardo, P. P. Meni, Morello, G., Torres, S. Mu~noz, Nishikawa, J., Nugroho, S. K., Ogihara, M., Pel'aez-Torres, A., Rapetti, D., S'anchez-Benavente, M., Schlecker, M., Seager, S., Serabyn, E., Serizawa, T., Stangret, M., Takahashi, A., Teng, H., Tamura, M., Terada, Y., Ueda, A., Usuda, T., Vanderspek, R., Vievard, S., Watanabe, D., Winn, J. N., Osorio, M. R. Zapatero

Publikováno v: Published on 2024 May 23 by Astrophysical Journal Letters (ApJL) 967 L21

Recent discoveries of Earth-sized planets transiting nearby M dwarfs have made it possible to characterize the atmospheres of terrestrial planets via follow-up spectroscopic observations. However, the number of such planets receiving low insolation i

Externí odkaz: http://arxiv.org/abs/2405.14708

Planetary companions orbiting the M dwarfs GJ 724 and GJ 3988. A CARMENES and IRD collaboration

Autor: Gorrini, P., Kemmer, J., Dreizler, S., Burn, R., Hirano, T., Pozuelos, F. J., Kuzuhara, M., Caballero, J. A., Amado, P. J., Harakawa, H., Kudo, T., Quirrenbach, A., Reiners, A., Ribas, I., Béjar, V. J. S., Chaturvedi, P., Cifuentes, C., Galadí-Enríquez, D., Hatzes, A. P., Kaminski, A., Kotani, T., Kürster, M., Livingston, J. H., González, M. J. López, Montes, D., Morales, J. C., Murgas, F., Omiya, M., Pallé, E., Rodríguez, E., Sato, B., Schweitzer, A., Shan, Y., Takarada, T., Tal-Or, L., Tamura, M., Vievard, S., Osorio, M. R. Zapatero, Zechmeister, M.

Publikováno v: A&A 680, A28 (2023)

We report the discovery of two exoplanets around the M dwarfs GJ 724 and GJ 3988 using the radial velocity (RV) method. We obtained a total of 153 3.5 m Calar Alto/CARMENES spectra for both targets and measured their RVs and activity indicators. We a

Externí odkaz: http://arxiv.org/abs/2310.05599

An Earth-sized Planet around an M5 Dwarf Star at 22 pc

Autor: Hirano, Teruyuki, Dai, Fei, Livingston, John H., Kasagi, Yui, Narita, Norio, Ishikawa, Hiroyuki Tako, Grziwa, Sascha, Lam, Kristine W. F., Miyakawa, Kohei, Serrano, Luisa M., Matsumoto, Yuji, Kokubo, Eiichiro, Kimura, Tadahiro, Ikoma, Masahiro, Winn, Joshua N., Wisniewski, John P., Harakawa, Hiroki, Teng, Huan-Yu, Cochran, William D., Fukui, Akihiko, Gandolfi, Davide, Guenther, Eike W., Hori, Yasunori, Ikuta, Kai, Kawauchi, Kiyoe, Knudstrup, Emil, Korth, Judith, Kotani, Takayuki, Krishnamurthy, Vigneshwaran, Kudo, Tomoyuki, Kurokawa, Takashi, Kuzuhara, Masayuki, Luque, Rafael, Mori, Mayuko, Nishikawa, Jun, Omiya, Masashi, Orell-Miquel, Jaume, Palle, Enric, Persson, Carina M., Redfield, Seth, Serabyn, Eugene, Smith, Alexis M. S., Takahashi, Aoi, Takarada, Takuya, Ueda, Akitoshi, Van Eylen, Vincent, Vievard, Sebastien, Tamura, Motohide, Sato, Bun'ei

We report on the discovery of an Earth-sized transiting planet ($R_p=1.015\pm0.051\,R_\oplus$) in a $P=4.02$ day orbit around K2-415 (EPIC 211414619), an M5V star at 22 pc. The planet candidate was first identified by analyzing the light curve data b

Externí odkaz: http://arxiv.org/abs/2302.00699

Determination of Genotype and Phenotypes in Pediatric Patients With Biventricular Noncompaction

Autor: Keiichi Hirono, Yukiko Hata, Teruhiko Imamura, Kaori Tsuboi, Shinya Takarada, Mako Okabe, Hideyuki Nakaoka, Keijiro Ibuki, Sayaka Ozawa, Shojiro Ichimata, Naoki Nishida, Hidenori Iwasaki, Susumu Urata, Seigo Okada, Tomoya Hiratsuji, Heima Sakaguchi, Kiyohiro Takigiku, Makoto Nakazawa, Eiki Nishihara, Masako Harada, Osamu Matsuo, Kenji Yasuda, Yoko Yoshida, Hidemasa Namiki, Kazushi Yasuda, Toshinobu Ifuku, Kotaro Urayama, Hideharu Oka, Kayo Ogino, Akio Kato, Nobuhiko Kan, Shunji Seki, Mitsuru Seki, Yutaka Odanaka, Satoru Iwashima, Shuichiro Yoshida, Toyohisa Miyata, Tomoyuki Miyamoto, Ken Watanabe, Naoki Kuwabara, Ryo Inuzuka, Yoshihiro Takahashi, Hisanori Sakazaki, Jun Muneuchi, Shigetoyo Kogaki, Fujito Numano, Sachiko Kido, Masaki Nii, Shinsuke Hoshino, Hidekazu Ishida, Jun Maeda, Yasunobu Hayabuchi, Yoshikazu Otsubo, Kazuyuki Ikeda, Shinya Tsukano, Makoto Watanabe, Nobuo Momoi, Takanari Fujii, Tao Fujioka, Mitsuhiro Fujino, Hiroki Uchiyama, Shigehito Baba, Hitoshi Horigome, Takashi Honda, Kazutaka Suzuki, Fukiko Ichida

Publikováno v: Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, Vol 13, Iss 21 (2024)

Background Left ventricular noncompaction (LVNC) is a hereditary type of cardiomyopathy characterized by prominent trabeculations. Detailed characteristics of biventricular noncompaction (BiVNC) remain unknown. This study aimed to elucidate the clini

Externí odkaz: https://doaj.org/article/0f80e1600f4e43fb837026a73925f862