Zobrazeno 1 - 10
of 206
pro vyhledávání: '"Ita, Y."'
Autor:
Riebel, D., Boyer, M. L., Srinivasan, S., Whitelock, P., Meixner, M., Babler, B., Feast, M., Groenewegen, M. A. T., Ita, Y., Meade, M., Shiao, B., Whitney, B.
We present the first results from the SAGE-Var program, a follow on to the Spitzer legacy program Surveying the Agents of Galaxy Evolution (SAGE; Meixner, et al. 2006). We obtained 4 epochs of photometry at 3.6 & 4.5 microns covering the bar of the L
Externí odkaz:
http://arxiv.org/abs/1505.00845
Long-term $JHK$ light curves have recently become available for large numbers of the more luminous stars in the SMC. We have used these $JHK$ light curves, along with OGLE $V$ and $I$ light curves, to examine the variability of a sample of luminous r
Externí odkaz:
http://arxiv.org/abs/1501.00748
Autor:
Inno, L., Matsunaga, N., Romaniello, M., Bono, G., Monson, A., Ferraro, I., Iannicola, G., Persson, E., Buonanno, R., Freedman, W., Gieren, W., Groenewegen, M. A. T., Ita, Y., Laney, C. D., Lemasle, B., Madore, B. F., Nagayama, T., Nakada, Y., Nonino, M., Pietrzynski, G., Primas, F., Scowcroft, V., Soszynski, I., Tanabe, T., Udalski, A.
Publikováno v:
A&A 576, A30 (2015)
We present new near-infrared (NIR) light-curve templates for fundamental (FU, JHK) and first overtone (FO, J) Cepheids. The new templates together with PL and PW relations provide Cepheid distances from single-epoch observations with a precision only
Externí odkaz:
http://arxiv.org/abs/1410.5460
Autor:
Angeloni, R., Ramos, R. Contreras, Catelan, M., Dékány, I., Gran, F., Alonso-García, J., Hempel, M., Navarrete, C., Andrews, H., Aparicio, A., Beamín, J. C., Berger, C., Borissova, J., Peña, C. Contreras, Cunial, A., de Grijs, R., Espinoza, N., Eyheramendy, S., Lopes, C. E. Ferreira, Fiaschi, M., Hajdu, G., Han, J., Hełminiak, K. G., Hempel, A., Hidalgo, S. L., Ita, Y., Jeon, Y. -B., Jordán, A., Kwon, J., Lee, J. T., Martín, E. L., Masetti, N., Matsunaga, N., Milone, A. P., Minniti, D., Morelli, L., Murgas, F., Nagayama, T., Navarro, C., Ochner, P., Pérez, P., Pichara, K., Rojas-Arriagada, A., Roquette, J., Saito, R. K., Siviero, A., Sohn, J., Sung, H. -I., Tamura, M., Tata, R., Tomasella, L., Townsend, B., Whitelock, P.
Publikováno v:
A&A 567, A100 (2014)
Context. The Vista Variables in the V\'ia L\'actea (VVV) ESO Public Survey is a variability survey of the Milky Way bulge and an adjacent section of the disk carried out from 2010 on ESO Visible and Infrared Survey Telescope for Astronomy (VISTA). VV
Externí odkaz:
http://arxiv.org/abs/1405.4517
Publikováno v:
Earth Planets Space, Vol. 65 (No. 3), pp. 229-271, 2013
The evolution of galaxies and the history of star formation in the Universe are among the most important topics in today's astrophysics. Especially, the role of small, irregular galaxies in the star-formation history of the Universe is not yet clear.
Externí odkaz:
http://arxiv.org/abs/1308.1332
Autor:
Ita, Y., Matsunaga, N.
Near- to mid-infrared period-magnitude relations and also the period-bolometric luminosity relation of OGLE-III Mira-like variables in the LMC are derived. The relations have a kink, and the period at which the break occurs is quantitatively obtained
Externí odkaz:
http://arxiv.org/abs/1011.4984
Autor:
Ita, Y., Matsuura, M., Ishihara, D., Oyabu, S., Takita, S., Kataza, H., Yamamura, I., Matsunaga, N., Tanabe, T., Nakada, Y., Fujiwara, H., Wada, T., Onaka, T., Matsuhara, H.
Results: We found that the (B-V) v.s. (V-S9W) color-color diagram is useful to identify the stars with infrared excess emerged from circumstellar envelopes/disks. Be stars with infrared excess are well separated from other types of stars in this diag
Externí odkaz:
http://arxiv.org/abs/1003.1370
Autor:
Ita, Y., Onaka, T., Tanabe, T., Matsunaga, N., Matsuura, M., Yamamura, I., Nakada, Y., Izumiura, H., Ueta, T., Mito, H., Fukushi, H., Kato, D.
We carried out a near- to mid-infrared imaging and spectroscopic observations of the patchy areas in the Small Magellanic Cloud using the Infrared Camera on board AKARI. Two 100 arcmin2 areas were imaged in 3.2, 4.1, 7, 11, 15, and 24 um and also spe
Externí odkaz:
http://arxiv.org/abs/1001.1791
Autor:
Ueta, T., Stencel, R. E., Yamamura, I., Geise, K. M., Karska, A., Izumiura, H., Nakada, Y., Matsuura, M., Ita, Y., Tanabe, T., Fukushi, H., Matsunaga, N., Mito, H., Speck, A. K.
The circumstellar dust shells of intermediate initial-mass (about 1 to 8 solar masses) evolved stars are generated by copious mass loss during the asymptotic giant branch phase. The density structure of their circumstellar shell is the direct evidenc
Externí odkaz:
http://arxiv.org/abs/0911.4918
Autor:
Matsunaga, N., Mito, H., Nakada, Y., Fukushi, H., Tanabé, T., Ita, Y., Izumiura, H., Matsuura, M., Ueta, T., Yamamura, I.
Publikováno v:
Publ.Astron.Soc.Jap.60:415-428,2008
We report the observations of 12 globular clusters with the AKARI/FIS. Our goal is to search for emission from the cold dust within clusters. We detect diffuse emissions toward NGC 6402 and 2808, but the IRAS 100-micron maps show the presence of stro
Externí odkaz:
http://arxiv.org/abs/0809.2853