Zobrazeno 1 - 10
of 297
pro vyhledávání: '"Nogami, D."'
Autor:
Pala, A. F., Gänsicke, B. T., Townsley, D., Boyd, D., Cook, M. J., De Martino, D., Godon, P., Haislip, J. B., Henden, A. A., Hubeny, I., Ivarsen, K. M., Kafka, S., Knigge, C., LaCluyze, A. P., Long, K. S., Marsh, T. R., Monard, B., Moore, J. P., Myers, G., Nelson, P., Nogami, D., Oksanen, A., Pickard, R., Poyner, G., Reichart, D. E., Rodriguez Perez, D., Schreiber, M. R., Shears, J., Sion, E. M., Stubbings, R., Szkody, P., Zorotovic, M.
We present HST spectroscopy for 45 cataclysmic variables (CVs), observed with HST/COS and HST/STIS. For 36 CVs, the white dwarf is recognisable through its broad Ly a absorption profile and we measure the white dwarf effective temperatures (T-eff) by
Externí odkaz:
http://hdl.handle.net/10150/623936
http://arizona.openrepository.com/arizona/handle/10150/623936
http://arizona.openrepository.com/arizona/handle/10150/623936
Autor:
Pala, A. F., Gänsicke, B. T., Belloni, D., Parsons, S. G., Marsh, T. R., Schreiber, M. R., Breedt, E., Knigge, C., Sion, E. M., Szkody, P., Townsley, D., Bildsten, L., Boyd, D., Cook, M. J., De Martino, D., Godon, P., Kafka, S., Kouprianov, V., Long, K. S., Monard, B., Myers, G., Nelson, P., Nogami, D., Oksanen, A., Pickard, R., Poyner, G., Reichart, D. E., Perez, D. Rodriguez, Shears, J., Stubbings, R., Toloza, O.
We report on the masses ($M_\mathrm{WD}$), effective temperatures ($T_\mathrm{eff}$) and secular mean accretion rates ($\langle \dot{M} \rangle$) of 43 cataclysmic variable (CV) white dwarfs, 42 of which were obtained from the combined analysis of th
Externí odkaz:
http://arxiv.org/abs/2111.13706
Autor:
Tanaka, Y. T., Itoh, R., Uemura, M., Inoue, Y., Cheung, C. C., Watanabe, M., Kawabata, K. S., Fukazawa, Y., Yatsu, Y., Yoshii, T., Tachibana, Y., Fujiwara, T., Saito, Y., Kawai, N., Kimura, M., Isogai, K., Kato, T., Akitaya, H., Kawabata, M., Nakaoka, T., Shiki, K., Takaki, K., Yoshida, M., Imai, M., Gouda, S., Gouda, Y., Akimoto, H., Honda, S., Hosoya, K., Ikebe, A., Morihana, K., Ohshima, T., Takagi, Y., Takahashi, J., Watanabe, K., Kuroda, D., Morokuma, T., Murata, K., Nagayama, T., Nogami, D., Oasa, Y., Sekiguchi, K.
We present simultaneous optical and near-infrared (NIR) polarimetric results for the black hole binary V404 Cygni spanning the duration of its 7-day long optically-brightest phase of its 2015 June outburst. The simultaneous R and Ks-band light curves
Externí odkaz:
http://arxiv.org/abs/1601.01312
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:
Kawabata, K. S., Akitaya, H., Yamanaka, M., Itoh, R., Maeda, K., Moritani, Y., Ui, T., Kawabata, M., Mori, K., Nogami, D., Nomoto, K., Suzuki, N., Takaki, K., Tanaka, M., Ueno, I., Chiyonobu, S., Harao, T., Matsui, R., Miyamoto, H., Nagae, O., Nakashima, A., Nakaya, H., Ohashi, Y., Ohsugi, T., Komatsu, T., Sakimoto, K., Sasada, M., Sato, H., Tanaka, H., Urano, T., Yamashita, T., Yoshida, M., Arai, A., Ebisuda, N., Fukazawa, Y., Fukui, A., Hashimoto, O., Honda, S., Izumiura, H., Kanda, Y., Kawaguchi, K., Kawai, N., Kuroda, D., Masumoto, K., Matsumoto, K., Nakaoka, T., Takata, K., Uemura, M., Yanagisawa, K.
We presented optical and near-infrared multi-band linear polarimetry of the highly reddened Type Ia SN~2014J appeared in M82. SN~2014J exhibits large polarization at shorter wavelengths, e.g., $4.8$\% in $B$ band, and the polarization decreases rapid
Externí odkaz:
http://arxiv.org/abs/1407.0452
WZ Sge-type dwarf novae are characterized by long recurrence times of outbursts (~10 yr) and short orbital periods (<~ 85 min). A significant part of WZ Sge stars may remain undiscovered because of low outburst activity. Recently, the observed orbita
Externí odkaz:
http://arxiv.org/abs/1003.0945
Autor:
Moritani, Y., Nogami, D., Okazaki, A. T., Imada, A., Kambe, E., Honda, S., Hashimoto, O., Ishino, Y., Suzuki, Y., Tanaka, J.
We report on optical high-dispersion spectroscopic monitoring observations of the Be/X-ray binary A0535+26/V725 Tau, carried out from November 2005 to March 2009. The main aim of these monitoring observations is to study spectral variabilities in the
Externí odkaz:
http://arxiv.org/abs/1002.2063
Autor:
Nogami, D., Hiroi, K., Suzuki, Y., Moritani, Y., Soejima, Y., Imada, A., Hashimoto, O., Kinugasa, K., Honda, S., Ayani, K., Narusawa, S., Naito, H., Sakamoto, M., Iijima, T., Fujii, M., Narita, N.
We carried out intensive spectroscopic observations of two WZ Sge-type dwarf novae, GW Lib, and V455 And during their superoutbursts in 2007, at 6 observatories. The observations covered the whole of both superoutbursts from the very maximum to the f
Externí odkaz:
http://arxiv.org/abs/0807.2098
Autor:
Pavlenko, E., Shugarov, S. Yu., Katysheva, N. A., Nogami, D., Nakajima, K., Maehara, H., Andreev, M., Shimansky, V., Zubareva, A., Babina, Ju., Borisov, N., Golovin, A., Baklanov, A., Baklanova, D., Berezovsky, K., Kroll, P.
We present the results of photometric observations of SDSS J080434.20+510349.2 in its low state and during an outburst and spectroscopy during the outburst. We found such peculiarities as a long-term outburst with amplitude probably not less than 6m,
Externí odkaz:
http://arxiv.org/abs/0712.1956
Autor:
Uemura, M., Arai, A., Krajci, T., Pavlenko, E., Shugarov, S. Yu., Katysheva, N. A., Goranskij, V. P., Maehara, H., Imada, A., Kato, T., Nogami, D., Nakajima, K., Ohsugi, T., Yamashita, T., Kawabata, K. S., Nagae, O., Chiyonobu, S., Fukazawa, Y., Mizuno, T., Katagiri, H., Takahashi, H., Ueda, A., Hayashi, T., Okita, K., Yoshida, M., Yanagisawa, K., Sato, S., Kino, M., Sadakane, K.
Several SU UMa-type dwarf novae, in particular, WZ Sge-type stars tend to exhibit rebrightenings after superoutbursts. The rebrightening phenomenon is problematic for the disk instability theory of dwarf novae since it requires a large amount of remn
Externí odkaz:
http://arxiv.org/abs/0711.2831