Zobrazeno 1 - 10
of 59 659
pro vyhledávání: '"Matsunaga A."'
Autor:
Matsunaga, Takashi
By nonstandard analysis, a very short and elementary proof of the Spectral Theorem for unbounded self-adjoint operators is given.
Externí odkaz:
http://arxiv.org/abs/2407.16136
Autor:
Saito, R. K., Hempel, M., Alonso-García, J., Lucas, P. W., Minniti, D., Alonso, S., Baravalle, L., Borissova, J., Caceres, C., Chené, A. N., Cross, N. J. G., Duplancic, F., Garro, E. R., Gómez, M., Ivanov, V. D., Kurtev, R., Luna, A., Majaess, D., Navarro, M. G., Pullen, J. B., Rejkuba, M., Sanders, J. L., Smith, L. C., Albino, P. H. C., Alonso, M. V., Amôres, E. B., Angeloni, R., Arias, J. I., Arnaboldi, M., Barbuy, B., Bayo, A., Beamin, J. C., Bedin, L. R., Bellini, A., Benjamin, R. A., Bica, E., Bonatto, C. J., Botan, E., Braga, V. F., Brown, D. A., Cabral, J. B., Camargo, D., Garatti, A. Caratti o, Carballo-Bello, J. A., Catelan, M., Chavero, C., Chijani, M. A., Clariá, J. J., Coldwell, G. V., Peña, C. Contreras, Ramos, R. Contreras, Corral-Santana, J. M., Cortés, C. C., Cortés-Contreras, M., Cruz, P., Daza-Perilla, I. V., Debattista, V. P., Dias, B., Donoso, L., D'Souza, R., Emerson, J. P., Federle, S., Fermiano, V., Fernandez, J., Fernández-Trincado, J. G., Ferreira, T., Lopes, C. E. Ferreira, Firpo, V., Flores-Quintana, C., Fraga, L., Froebrich, D., Galdeano, D., Gavignaud, I., Geisler, D., Gerhard, O. E., Gieren, W., Gonzalez, O. A., Gramajo, L. V., Gran, F., Granitto, P. M., Griggio, M., Guo, Z., Gurovich, S., Hilker, M., Jones, H. R. A., Kammers, R., Kuhn, M. A., Kumar, M. S . N., Kundu, R., Lares, M., Libralato, M., Lima, E., Maccarone, T. J., Cortés, P. Marchant, Martin, E. L., Masetti, N., Matsunaga, N., Mauro, F., McDonald, I., Mejías, A., Mesa, V., Milla-Castro, F. P., Minniti, J. H., Bidin, C. Moni, Montenegro, K., Morris, C., Motta, V., Navarete, F., Molina, C. Navarro, Nikzat, F., Castellón, J. L. Nilo, Obasi, C., Ortigoza-Urdaneta, M., Palma, T., Parisi, C., Ramírez, K. Pena, Pereyra, L., Perez, N., Petralia, I., Pichel, A., Pignata, G., Alegría, S. Ramírez, Rojas, A. F., Rojas, D., Roman-Lopes, A., Rovero, A. C., Saroon, S., Schmidt, E. O., Schröder, A. C., Schultheis, M., Sgró, M. A., Solano, E., Soto, M., Stecklum, B., Steeghs, D., Tamura, M., Tissera, P., Valcarce, A. A. R., Valotto, C. A., Vasquez, S., Villalon, C., Villanova, S., Cádiz, F. Vivanco, Bacigalupo, R. Zelada, Zijlstra, A., Zoccali, M.
The ESO public survey VISTA Variables in the V\'ia L\'actea (VVV) surveyed the inner Galactic bulge and the adjacent southern Galactic disk from $2009-2015$. Upon its conclusion, the complementary VVV eXtended (VVVX) survey has expanded both the temp
Externí odkaz:
http://arxiv.org/abs/2406.16646
Autor:
Di Criscienzo, M., Leccia, S., Braga, V., Musella, I., Bono, G., Dall'Ora, M., Fiorentino, G., Marconi, M., Molinaro, R., Ripepi, V., Girardi, L., Mazzi, A., Pastorelli, G., Trabucchi, M., Matsunaga, N., Monelli, M., Saha, A., Vivas, K., Sanchez, R. Zanmar
This work is part of VESTALE, a project initiated within the Rubin-LSST Cadence Strategy Optimization Process . Its goal is to explore the potential of Rubin-LSST observations aimed at the Galaxy's bulge (Bulge) for studying RR Lyrae stars (RRL). Obs
Externí odkaz:
http://arxiv.org/abs/2406.12488
Background: Structured radiology reports remains underdeveloped due to labor-intensive structuring and narrative-style reporting. Deep learning, particularly large language models (LLMs) like GPT-3.5, offers promise in automating the structuring of r
Externí odkaz:
http://arxiv.org/abs/2406.06591
Autor:
Matsunaga, Kai, Uchida, Hiroyuki, Enokiya, Rei, Sato, Toshiki, Sawada, Ryo, Umeda, Hideyuki, Narita, Takuto, Tsuru, Takeshi Go
It is generally hard to put robust constraints on progenitor masses of supernovae (SNe) and remnants (SNRs) observationally, while they offer tantalizing clues to understanding explosion mechanisms and mass distribution. Our recent study suggests tha
Externí odkaz:
http://arxiv.org/abs/2405.20736
Autor:
Kato, Taiga, Ma, Hanming, Yoshimi, Kazuyoshi, Misawa, Takahiro, Kumagai, Shigen, Iida, Youhei, Sasaki, Yoshiaki, Sawada, Masashi, Gouchi, Jun, Kobayashi, Takuya, Taniguchi, Hiromi, Uwatoko, Yoshiya, Sato, Hiroyasu, Matsunaga, Noriaki, Kawamoto, Atsushi, Nomura, Kazushige
External pressure and associated changes in lattice structures are key to realizing exotic quantum phases such as high-$T_{\rm c}$ superconductivity. While applying external pressure is a standard method to induce novel lattice structures, its impact
Externí odkaz:
http://arxiv.org/abs/2405.12086
Autor:
D'Orazi, Valentina, Storm, Nicholas, Casey, Andrew R., Braga, Vittorio F., Zocchi, Alice, Bono, Giuseppe, Fabrizio, Michele, Sneden, Christopher, Massari, Davide, Giribaldi, Riano E., Bergemann, Maria, Campbell, Simon W., Casagrande, Luca, de Grijs, Richard, De Silva, Gayandhi, Lugaro, Maria, Zucker, Daniel B., Bragaglia, Angela, Feuillet, Diane, Fiorentino, Giuliana, Chaboyer, Brian, Dall'Ora, Massimo, Marengo, Massimo, Martínez-Vázquez, Clara E., Matsunaga, Noriyuki, Monelli, Matteo, Mullen, Joseph P., Nataf, David, Tantalo, Maria, Thevenin, Frederic, Vitello, Fabio R., Kudritzki, Rolf-Peter, Bland-Hawthorn, Joss, Buder, Sven, Freeman, Ken, Kos, Janez, Lewis, Geraint F., Lind, Karin, Martell, Sarah, Sharma, Sanjib, Stello, Dennis, Zwitter, Tomaž
Stellar mergers and accretion events have been crucial in shaping the evolution of the Milky Way (MW). These events have been dynamically identified and chemically characterised using red giants and main-sequence stars. RR Lyrae (RRL) variables can p
Externí odkaz:
http://arxiv.org/abs/2405.04580
Autor:
Jian, Mingjie, Fu, Xiaoting, Matsunaga, Noriyuki, D'Orazi, Valentina, Bragaglia, Angela, Taniguchi, Daisuke, Fang, Min, Sanna, Nicoletta, Lucatello, Sara, Frasca, Antonio, Alonso-Santiago, Javier, Catanzaro, Giovanni, Oliva, Ernesto
Publikováno v:
A&A 687, A189 (2024)
The precise measurement of stellar abundances plays a pivotal role in providing constraints on the chemical evolution of the Galaxy. However, before spectral lines can be employed as reliable abundance indicators, particularly for challenging element
Externí odkaz:
http://arxiv.org/abs/2404.09975
Autor:
Katoh, Haruki, Yasui, Chikako, Ikeda, Yuji, Kobayashi, Naoto, Matsunaga, Noriyuki, Kondo, Sohei, Sameshima, Hiroaki, Hamano, Satoshi, Mizumoto, Misaki, Kawakita, Hideyo, Fukue, Kei, Otsubo, Shogo, Takenaka, Keiichi
In this study, we performed high-resolution near-infrared (NIR) spectroscopy (R = 28,000; ${\lambda} = 0.90$-1.35 ${\mu}$m) with a high signal-to-noise ratio on HD 200775, a very young (${\sim}$0.1 Myr old) and massive intermediate-mass star (a binar
Externí odkaz:
http://arxiv.org/abs/2403.09774
Autor:
Sato, Toshiki, Matsunaga, Kai, Sawada, Ryo, Takahashi, Koh, Suwa, Yudai, Hughes, John P., Uchida, Hiroyuki, Narita, Takuto, Umeda, Hideyuki
Simulations of pre-supernova evolution suggest that some intense shell burning can be so active that, in extreme cases, it can merge with the outer shell, changing the initial conditions for the supernova explosion. However, such violent activity in
Externí odkaz:
http://arxiv.org/abs/2403.04156