Zobrazeno 1 - 10
of 215
pro vyhledávání: '"Ishigaki, M."'
Publikováno v:
A&A 632, A62 (2019)
The nature of the first massive stars may be inferred by investigating the origin of the extremely metal-poor (EMP) stars, likely formed from the ejecta of one or a few previous massive stars. We investigate the rotational properties of early massive
Externí odkaz:
http://arxiv.org/abs/1910.01366
Autor:
Arkhipova, V. P., Parthasarathy, M., Ikonnikova, N. P., Ishigaki, M., Hubrig, S., Sarkar, G., Kniazev, A. Y.
We present a study of the high-resolution optical spectrum for the hot post-asymptotic giant branch (post-AGB) star, Hen 3-1013, identified as the optical counterpart of the infrared sourceIRAS 14331-6435. For the first time the detailed identificati
Externí odkaz:
http://arxiv.org/abs/1809.03756
Autor:
Simionescu, A., Nakashima, S., Yamaguchi, H., Matsushita, K., Mernier, F., Werner, N., Tamura, T., Nomoto, K., de Plaa, J., Leung, S. -C., Bamba, A., Bulbul, E., Eckart, M. E., Ezoe, Y., Fabian, A. C., Fukazawa, Y., Gu, L., Ichinohe, Y., Ishigaki, M. N., Kaastra, J. S., Kilbourne, C., Kitayama, T., Leutenegger, M., Loewenstein, M., Maeda, Y., Miller, E. D., Mushotzky, R. F., Noda, H., Pinto, C., Porter, F. S., Safi-Harb, S., Sato, K., Takahashi, T., Ueda, S., Zha, S.
High-resolution spectroscopy of the core of the Perseus Cluster of galaxies, using the $Hitomi$ satellite above 2 keV and the $XMM$-$Newton$ Reflection Grating Spectrometer at lower energies, provides reliable constraints on the abundances of O, Ne,
Externí odkaz:
http://arxiv.org/abs/1806.00932
Autor:
Meneghetti, M., Natarajan, P., Coe, D., Contini, E., De Lucia, G., Giocoli, C., Acebron, A., Borgani, S., Bradac, M., Diego, J. M., Hoag, A., Ishigaki, M., Johnson, T. L., Jullo, E., Kawamata, R., Lam, D., Limousin, M., Liesenborgs, J., Oguri, M., Sebesta, K., Sharon, K., Williams, L. L. R., Zitrin, A.
Gravitational lensing by clusters of galaxies offers a powerful probe of their structure and mass distribution. Deriving a lens magnification map for a galaxy cluster is a classic inversion problem and many methods have been developed over the past t
Externí odkaz:
http://arxiv.org/abs/1606.04548
Autor:
Maeda, K., Tajitsu, A., Kawabata, K. S., Foley, R. J., Honda, S., Moritani, Y., Tanaka, M., Hashimoto, O., Ishigaki, M., Simon, J. D., Phillips, M. M., Yamanaka, M., Nogami, D., Arai, A., Aoki, W., Nomoto, K., Milisavljevic, D., Mazzali, P. A., Soderberg, A. M., Schramm, M., Sato, B., Harakawa, H., Morrell, N., Arimoto, N.
Na I D absorbing systems toward Type Ia supernovae (SNe Ia) have been intensively studied over the last decade with the aim of finding circumstellar material (CSM), which is an indirect probe of the progenitor system. However, it is difficult to deco
Externí odkaz:
http://arxiv.org/abs/1511.05668
Autor:
Treu, T., Brammer, G., Diego, J. M., Grillo, C., Kelly, P. L., Oguri, M., Rodney, S. A., Rosati, P., Sharon, K., Zitrin, A., Balestra, I., Bradac, M., Broadhurst, T., Caminha, G. B., Halkola, A., Hoag, A., Ishigaki, M., Johnson, T. L., Karman, W., Kawamata, R., Mercurio, A., Schmidt, K. B., Strolger, L. G., Suyu, S. H., Filippenko, A. V., Foley, R. J., Jha, S. W., Patel, B.
Supernova "Refsdal," multiply imaged by cluster MACSJ1149.5+2223, represents a rare opportunity to make a true blind test of model predictions in extragalactic astronomy, on a time scale that is short compared to a human lifetime. In order to take ad
Externí odkaz:
http://arxiv.org/abs/1510.05750
Autor:
Maeda, K., Hattori, T., Milisavljevic, D., Folatelli, G., Drout, M. R., Kuncarayakti, H., Margutti, R., Kamble, A., Soderberg, A., Tanaka, M., Kawabata, M., Kawabata, K. S., Yamanaka, M., Nomoto, K., Kim, J. H., Simon, J. D., Phillips, M. M., Parrent, J., Nakaoka, T., Moriya, T. J., Suzuki, A., Takaki, K., Ishigaki, M., Sakon, I., Tajitsu, A., Iye, M.
We report the late-time evolution of Type IIb Supernova (SN IIb) 2013df. SN 2013df showed a dramatic change in its spectral features at ~1 year after the explosion. Early on it showed typical characteristics shared by SNe IIb/Ib/Ic dominated by metal
Externí odkaz:
http://arxiv.org/abs/1504.06668
We present the abundance analysis of 97 nearby metal-poor (-3.3<[Fe/H]<-0.5) stars having kinematics characteristics of the Milky Way (MW) thick disk, inner, and outer stellar halos. The high-resolution, high-signal-to-noise optical spectra for the s
Externí odkaz:
http://arxiv.org/abs/1205.2406
We present chemical abundances of 57 metal-poor stars that are likely constituents of the outer stellar halo in the Milky Way. Almost all of the sample stars have an orbit reaching a maximum vertical distance (Z_max) of >5 kpc above and below the Gal
Externí odkaz:
http://arxiv.org/abs/0912.0329
Autor:
Murakami, H., Baba, H., Barthel, P., Clements, D. L., Cohen, M., Doi, Y., Enya, K., Figueredo, E., Fujishiro, N., Fujiwara, H., Fujiwara, M., Garcia-Lario, P., Goto, T., Hasegawa, S., Hibi, Y., Hirao, T., Hiromoto, N., Hong, S. S., Imai, K., Ishigaki, M., Ishiguro, M., Ishihara, D., Ita, Y., Jeong, W. -S., Jeong, K. S., Kaneda, H., Kataza, H., Kawada, M., Kawai, T., Kawamura, A., Kessler, M. F., Kester, Do, Kii, T., Kim, D. C., Kim, W., Kobayashi, H., Koo, B. C., Kwon, S. M., Lee, H. M., Lorente, R., Makiuti, S., Matsuhara, H., Matsumoto, T., Matsuo, H., Matsuura, S., Mueller, T. G., Murakami, N., Nagata, H., Nakagawa, T., Naoi, T., Narita, M., Noda, M., Oh, S. H., Ohnishi, A., Ohyama, Y., Okada, Y., Okuda, H., Oliver, S., Onaka, T., Ootsubo, T., Oyabu, S., Pak, S., Park, Y. S., Pearson, C. P., Rowan-Robinson, M., Saito, T., Sakon, I., Salama, A., Sato, S., Savage, R. S., Serjeant, S., Shibai, H., Shirahata, M., Sohn, J. J., Suzuki, T., Takagi, T., Takahashi, H., Tanabe, T., Takeuchi, T. T., Takita, S., Thomson, M., Uemizu, K., Ueno, M., Usui, F., Verdugo, E., Wada, T., Wang, L., Watabe, T., Watarai, H., White, G. J., Yamamura, I., Yamauchi, C., Yasuda, A.
Publikováno v:
Publ.Astron.Soc.Jap.59:369-376,2007
AKARI, the first Japanese satellite dedicated to infrared astronomy, was launched on 2006 February 21, and started observations in May of the same year. AKARI has a 68.5 cm cooled telescope, together with two focal-plane instruments, which survey the
Externí odkaz:
http://arxiv.org/abs/0708.1796