Zobrazeno 1 - 10
of 2 539
pro vyhledávání: '"Nagayama T"'
Autor:
Singh, Avinash, Teja, R. S., Moriya, T. J., Maeda, K., Kawabata, K. S., Tanaka, M., Imazawa, R., Nakaoka, T., Gangopadhyay, A., Yamanaka, M., Swain, V., Sahu, D. K., Anupama, G. C., Kumar, B., Anche, R. M., Sano, Y., Raj, A., Agnihotri, V. K., Bhalerao, V., Bisht, D., Bisht, M. S., Belwal, K., Chakrabarti, S. K., Fujii, M., Nagayama, T., Matsumoto, K., Hamada, T., Kawabata, M., Kumar, A., Kumar, R., Malkan, B. K., Smith, P., Sakagami, Y., Taguchi, K., Tominaga, N., Watanabe, A.
We present a detailed investigation of photometric, spectroscopic, and polarimetric observations of the Type II SN 2023ixf. Earlier studies have provided compelling evidence for a delayed shock breakout from a confined dense circumstellar matter (CSM
Externí odkaz:
http://arxiv.org/abs/2405.20989
Autor:
Acharya, B., Aliotta, M., Balantekin, A. B., Bemmerer, D., Bertulani, C. A., Best, A., Brune, C. R., Buompane, R., Cavanna, F., Chen, J. W., Colgan, J., Czarnecki, A., Davids, B., deBoer, R. J., Delahaye, F., Depalo, R., García, A., Johnson, M. Gatu, Gazit, D., Gialanella, L., Greife, U., Guffanti, D., Guglielmetti, A., Hambleton, K., Haxton, W. C., Herrera, Y., Huang, M., Iliadis, C., Kravvaris, K., La Cognata, M., Langanke, K., Marcucci, L. E., Nagayama, T., Nollett, K. M., Odell, D., Gann, G. D. Orebi, Piatti, D., Pinsonneault, M., Platter, L., Robertson, R. G. H., Rupak, G., Serenelli, A., Sferrazza, M., Szücs, T., Tang, X., Tumino, A., Villante, F. L., Walker-Loud, A., Zhang, X., Zuber, K.
In stars that lie on the main sequence in the Hertzsprung Russel diagram, like our sun, hydrogen is fused to helium in a number of nuclear reaction chains and series, such as the proton-proton chain and the carbon-nitrogen-oxygen cycles. Precisely de
Externí odkaz:
http://arxiv.org/abs/2405.06470
Autor:
Kwon, Y. G., Ishiguro, M., Kwon, J., Kuroda, D., Im, M., Choi, C., Tamura, M., Nagayama, T., Kawai, N., Watanabe, J. -I.
Publikováno v:
A&A 629, A121 (2019)
Aims. We aim to constrain the size and porosity of ejected dust particles from comet 252P/LINEAR and their evolution near the perihelion via near-infrared multiband polarimetry. A close approach of the comet to the Earth in March 2016 (~0.036 au) pro
Externí odkaz:
http://arxiv.org/abs/1907.03952
Autor:
Fujiwara, H., Terashima, K., Sunagawa, M., Yano, Y., Nagayama, T., Fukura, T., Yoshii, F., Matsuura, Y., Ogata, M., Wakita, T., Yaji, K., Harasawa, A., Kuroda, K., Shin, S., Horiba, K., Kumigashira, H., Muraoka, Y., Yokoya, T.
Publikováno v:
Phys. Rev. Lett. 121, 257201 (2018)
Using high-resolution spin-resolved photoemission spectroscopy, we observed a thermal spin depolarization to which all spin-polarized electrons contribute. Furthermore we observed a distinct minority spin state near the Fermi level and a correspondin
Externí odkaz:
http://arxiv.org/abs/1812.07792
Akademický článek
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Autor:
Nagayama, T., Terashima, K., Wakita, T., Fujiwara, H., Fukura, T., Yano, Y., Ono, K., Kumigashira, H., Ogiso, O., Yamashita, A., Takano, Y., Mori, H., Usui, H., Ochi, M., Kuroki, K., Muraoka, Y., Yokoya, T.
Publikováno v:
Jpn. J. Appl. Phys. 57, 010301 (2018)
Synchrotron-based angle-resolved photoemission spectroscopy is used to determine the electronic structure of layered SnSe, which was recently turned out to be a potential thermoelectric material. We observe that the top of the valence band consists o
Externí odkaz:
http://arxiv.org/abs/1712.09198
Autor:
Fender, R., Woudt, P. A., Armstrong, R., Groot, P., McBride, V., Miller-Jones, J., Mooley, K., Stappers, B., Wijers, R., Bietenholz, M., Blyth, S., Bottcher, M., Buckley, D., Charles, P., Chomiuk, L., Coppejans, D., Corbel, S., Coriat, M., Daigne, F., de Blok, W. J. G., Falcke, H., Girard, J., Heywood, I., Horesh, A., Horrell, J., Jonker, P., Joseph, T., Kamble, A., Knigge, C., Koerding, E., Kotze, M., Kouveliotou, C., Lynch, C., Maccarone, T., Meintjes, P., Migliari, S., Murphy, T., Nagayama, T., Nelemans, G., Nicholson, G., O'Brien, T., Oodendaal, A., Oozeer, N., Osborne, J., Perez-Torres, M., Ratcliffe, S., Ribeiro, V., Rol, E., Rushton, A., Scaife, A., Schurch, M., Sivakoff, G., Staley, T., Steeghs, D., Stewart, I., Swinbank, J., van der Heyden, K., van der Horst, A., van Soelen, B., Vergani, S., Warner, B., Wiersema, K.
ThunderKAT is the image-plane transients programme for MeerKAT. The goal as outlined in 2010, and still today, is to find, identify and understand high-energy astrophysical processes via their radio emission (often in concert with observations at oth
Externí odkaz:
http://arxiv.org/abs/1711.04132
Accurately measuring the masses of white dwarf stars is crucial in many astrophysical contexts (e.g., asteroseismology and cosmochronology). These masses are most commonly determined by fitting a model atmosphere to an observed spectrum; this is know
Externí odkaz:
http://arxiv.org/abs/1610.02342
Autor:
Falcon, Ross E., Bailey, J. E., Gomez, T. A., Schaeuble, M., Nagayama, T., Montgomery, M. H., Winget, D. E., Rochau, G. A.
As part of our laboratory investigation of the theoretical line profiles used in white dwarf atmosphere models, we extend the electron-density ($n_{\rm e}$) range measured by our experiments to higher densities (up to $n_{e}\sim80\times10^{16}$ cm$^{
Externí odkaz:
http://arxiv.org/abs/1609.09101
Autor:
Yamagishi, M., Kaneda, H., Ishihara, D., Oyabu, S., Suzuki, T., Onaka, T., Nagayama, T., Umemoto, T., Minamidani, T., Nishimura, A., Matsuo, M., Fujita, S., Tsuda, Y., Kohno, M., Ohashi, S.
We present $Spitzer$/IRS mid-infrared spectral maps of the Galactic star-forming region M17 as well as IRSF/SIRIUS Br$\gamma$ and Nobeyama 45-m/FOREST $^{13}$CO ($J$=1--0) maps. The spectra show prominent features due to polycyclic aromatic hydrocarb
Externí odkaz:
http://arxiv.org/abs/1607.03622